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</li>
<li class="md-nav__item">
<a href="../greTunnels/" class="md-nav__link">
<span class="md-ellipsis">
greTunnels
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../interfaces/" class="md-nav__link">
<span class="md-ellipsis">
Interfaces
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../iproute2/" class="md-nav__link">
<span class="md-ellipsis">
Iproute2
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../jool/" class="md-nav__link">
<span class="md-ellipsis">
Jool
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../macvlans/" class="md-nav__link">
<span class="md-ellipsis">
Macvlans
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</li>
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<input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
<label class="md-nav__link md-nav__link--active" for="__toc">
<span class="md-ellipsis">
Nat
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<span class="md-nav__icon md-icon"></span>
</label>
<a href="./" class="md-nav__link md-nav__link--active">
<span class="md-ellipsis">
Nat
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</a>
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
<label class="md-nav__title" for="__toc">
<span class="md-nav__icon md-icon"></span>
Table of contents
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<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
<li class="md-nav__item">
<a href="#networkingnatdmzhost" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.dmzHost
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.dmzHost">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#example" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatenable" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.enable
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.enable">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_1" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatenableipv6" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.enableIPv6
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.enableIPv6">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_2" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatexternalip" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.externalIP
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.externalIP">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_3" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#example_1" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatexternalipv6" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.externalIPv6
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.externalIPv6">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_4" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#example_2" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatexternalinterface" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.externalInterface
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.externalInterface">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_5" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#example_3" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatextracommands" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.extraCommands
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.extraCommands">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_6" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#example_4" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatextrastopcommands" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.extraStopCommands
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.extraStopCommands">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_7" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#example_5" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatforwardports" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.forwardPorts
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.forwardPorts">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_8" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#example_6" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatforwardportsdestination" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.forwardPorts.*.destination
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.forwardPorts.*.destination">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#example_7" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatforwardportsloopbackips" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.forwardPorts.*.loopbackIPs
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.forwardPorts.*.loopbackIPs">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_9" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#example_8" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatforwardportsproto" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.forwardPorts.*.proto
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.forwardPorts.*.proto">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_10" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#example_9" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatforwardportssourceport" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.forwardPorts.*.sourcePort
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.forwardPorts.*.sourcePort">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#example_10" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatinternalips" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.internalIPs
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.internalIPs">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_11" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#example_11" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatinternalipv6s" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.internalIPv6s
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.internalIPv6s">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_12" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#example_12" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatinternalinterfaces" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.internalInterfaces
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.internalInterfaces">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_13" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#example_13" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="../networkmanager/" class="md-nav__link">
<span class="md-ellipsis">
Networkmanager
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../nftables/" class="md-nav__link">
<span class="md-ellipsis">
Nftables
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../openconnect/" class="md-nav__link">
<span class="md-ellipsis">
Openconnect
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../proxy/" class="md-nav__link">
<span class="md-ellipsis">
Proxy
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../resolvconf/" class="md-nav__link">
<span class="md-ellipsis">
Resolvconf
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../rxe/" class="md-nav__link">
<span class="md-ellipsis">
Rxe
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../sits/" class="md-nav__link">
<span class="md-ellipsis">
Sits
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../stevenblack/" class="md-nav__link">
<span class="md-ellipsis">
Stevenblack
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../supplicant/" class="md-nav__link">
<span class="md-ellipsis">
Supplicant
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../tcpcrypt/" class="md-nav__link">
<span class="md-ellipsis">
Tcpcrypt
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../ucarp/" class="md-nav__link">
<span class="md-ellipsis">
Ucarp
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../vlans/" class="md-nav__link">
<span class="md-ellipsis">
Vlans
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../vswitches/" class="md-nav__link">
<span class="md-ellipsis">
Vswitches
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../wg-quick/" class="md-nav__link">
<span class="md-ellipsis">
Wg quick
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../wireguard/" class="md-nav__link">
<span class="md-ellipsis">
Wireguard
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../wireless/" class="md-nav__link">
<span class="md-ellipsis">
Wireless
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../wlanInterfaces/" class="md-nav__link">
<span class="md-ellipsis">
wlanInterfaces
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
<a href="../../programs/_1password-gui/" class="md-nav__link">
<span class="md-ellipsis">
Programs
</span>
<span class="md-nav__icon md-icon"></span>
</a>
</li>
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
<a href="../../security/" class="md-nav__link">
<span class="md-ellipsis">
Security
</span>
<span class="md-nav__icon md-icon"></span>
</a>
</li>
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
<a href="../../services/" class="md-nav__link">
<span class="md-ellipsis">
Services
</span>
<span class="md-nav__icon md-icon"></span>
</a>
</li>
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
<a href="../../systemd/" class="md-nav__link">
<span class="md-ellipsis">
Systemd
</span>
<span class="md-nav__icon md-icon"></span>
</a>
</li>
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
<a href="../../users/" class="md-nav__link">
<span class="md-ellipsis">
Users
</span>
<span class="md-nav__icon md-icon"></span>
</a>
</li>
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
<a href="../../virtualisation/" class="md-nav__link">
<span class="md-ellipsis">
Virtualisation
</span>
<span class="md-nav__icon md-icon"></span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
<a href="../../../Nixpkgs/" class="md-nav__link">
<span class="md-ellipsis">
Nixpkgs
</span>
<span class="md-nav__icon md-icon"></span>
</a>
</li>
</ul>
</nav>
</div>
</div>
</div>
<div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
<div class="md-sidebar__scrollwrap">
<div class="md-sidebar__inner">
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
<label class="md-nav__title" for="__toc">
<span class="md-nav__icon md-icon"></span>
Table of contents
</label>
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
<li class="md-nav__item">
<a href="#networkingnatdmzhost" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.dmzHost
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.dmzHost">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#example" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatenable" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.enable
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.enable">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_1" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatenableipv6" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.enableIPv6
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.enableIPv6">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_2" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatexternalip" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.externalIP
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.externalIP">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_3" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#example_1" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatexternalipv6" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.externalIPv6
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.externalIPv6">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_4" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#example_2" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatexternalinterface" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.externalInterface
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.externalInterface">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_5" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#example_3" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatextracommands" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.extraCommands
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.extraCommands">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_6" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#example_4" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatextrastopcommands" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.extraStopCommands
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.extraStopCommands">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_7" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#example_5" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatforwardports" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.forwardPorts
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.forwardPorts">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#default_8" class="md-nav__link">
<span class="md-ellipsis">
Default
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#example_6" class="md-nav__link">
<span class="md-ellipsis">
Example
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#networkingnatforwardportsdestination" class="md-nav__link">
<span class="md-ellipsis">
networking.nat.forwardPorts.*.destination
</span>
</a>
<nav class="md-nav" aria-label="networking.nat.forwardPorts.*.destination">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#example_7" class="md-nav__link">
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networking.nat.forwardPorts.*.loopbackIPs
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<article class="md-content__inner md-typeset">
<h1>Nat</h1>
<h2 id="networkingnatdmzhost" networking-nat-dmzHost="networking-nat-dmzHost"><code>networking.nat.dmzHost</code></h2>
<p>The local IP address to which all traffic that does not match any
forwarding rule is forwarded.</p>
<p><strong>Type:</strong> <code>null or string</code></p>
<h3 id="default" networking-nat-dmzHost-default="networking-nat-dmzHost-default">Default</h3>
<p><code class="highlight"><span class="no">null</span></code></p>
<h3 id="example" networking-nat-dmzHost-example="networking-nat-dmzHost-example">Example</h3>
<p><code class="highlight"><span class="s2">&quot;10.0.0.1&quot;</span></code></p>
<p><strong>Declared by:</strong> <a href="https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix">https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix</a></p>
<h2 id="networkingnatenable" networking-nat-enable="networking-nat-enable"><code>networking.nat.enable</code></h2>
<p>Whether to enable Network Address Translation (NAT).</p>
<p><strong>Type:</strong> <code>boolean</code></p>
<h3 id="default_1" networking-nat-enable-default="networking-nat-enable-default">Default</h3>
<p><code class="highlight"><span class="no">false</span></code></p>
<p><strong>Declared by:</strong> <a href="https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix">https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix</a></p>
<h2 id="networkingnatenableipv6" networking-nat-enableIPv6="networking-nat-enableIPv6"><code>networking.nat.enableIPv6</code></h2>
<p>Whether to enable IPv6 NAT.</p>
<p><strong>Type:</strong> <code>boolean</code></p>
<h3 id="default_2" networking-nat-enableIPv6-default="networking-nat-enableIPv6-default">Default</h3>
<p><code class="highlight"><span class="no">false</span></code></p>
<p><strong>Declared by:</strong> <a href="https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix">https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix</a></p>
<h2 id="networkingnatexternalip" networking-nat-externalIP="networking-nat-externalIP"><code>networking.nat.externalIP</code></h2>
<p>The public IP address to which packets from the local
network are to be rewritten. If this is left empty, the
IP address associated with the external interface will be
used.</p>
<p><strong>Type:</strong> <code>null or string</code></p>
<h3 id="default_3" networking-nat-externalIP-default="networking-nat-externalIP-default">Default</h3>
<p><code class="highlight"><span class="no">null</span></code></p>
<h3 id="example_1" networking-nat-externalIP-example="networking-nat-externalIP-example">Example</h3>
<p><code class="highlight"><span class="s2">&quot;203.0.113.123&quot;</span></code></p>
<p><strong>Declared by:</strong> <a href="https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix">https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix</a></p>
<h2 id="networkingnatexternalipv6" networking-nat-externalIPv6="networking-nat-externalIPv6"><code>networking.nat.externalIPv6</code></h2>
<p>The public IPv6 address to which packets from the local
network are to be rewritten. If this is left empty, the
IP address associated with the external interface will be
used.</p>
<p><strong>Type:</strong> <code>null or string</code></p>
<h3 id="default_4" networking-nat-externalIPv6-default="networking-nat-externalIPv6-default">Default</h3>
<p><code class="highlight"><span class="no">null</span></code></p>
<h3 id="example_2" networking-nat-externalIPv6-example="networking-nat-externalIPv6-example">Example</h3>
<p><code class="highlight"><span class="s2">&quot;2001:dc0:2001:11::175&quot;</span></code></p>
<p><strong>Declared by:</strong> <a href="https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix">https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix</a></p>
<h2 id="networkingnatexternalinterface" networking-nat-externalInterface="networking-nat-externalInterface"><code>networking.nat.externalInterface</code></h2>
<p>The name of the external network interface.</p>
<p><strong>Type:</strong> <code>null or string</code></p>
<h3 id="default_5" networking-nat-externalInterface-default="networking-nat-externalInterface-default">Default</h3>
<p><code class="highlight"><span class="no">null</span></code></p>
<h3 id="example_3" networking-nat-externalInterface-example="networking-nat-externalInterface-example">Example</h3>
<p><code class="highlight"><span class="s2">&quot;eth1&quot;</span></code></p>
<p><strong>Declared by:</strong> <a href="https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix">https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix</a></p>
<h2 id="networkingnatextracommands" networking-nat-extraCommands="networking-nat-extraCommands"><code>networking.nat.extraCommands</code></h2>
<p>Additional shell commands executed as part of the nat
initialisation script.</p>
<p>This option is incompatible with the nftables based nat module.</p>
<p><strong>Type:</strong> <code>strings concatenated with "\n"</code></p>
<h3 id="default_6" networking-nat-extraCommands-default="networking-nat-extraCommands-default">Default</h3>
<p><code class="highlight"><span class="s2">&quot;&quot;</span></code></p>
<h3 id="example_4" networking-nat-extraCommands-example="networking-nat-extraCommands-example">Example</h3>
<p><code class="highlight"><span class="s2">&quot;iptables -A INPUT -p icmp -j ACCEPT&quot;</span></code></p>
<p><strong>Declared by:</strong> <a href="https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat-iptables.nix">https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat-iptables.nix</a></p>
<h2 id="networkingnatextrastopcommands" networking-nat-extraStopCommands="networking-nat-extraStopCommands"><code>networking.nat.extraStopCommands</code></h2>
<p>Additional shell commands executed as part of the nat
teardown script.</p>
<p>This option is incompatible with the nftables based nat module.</p>
<p><strong>Type:</strong> <code>strings concatenated with "\n"</code></p>
<h3 id="default_7" networking-nat-extraStopCommands-default="networking-nat-extraStopCommands-default">Default</h3>
<p><code class="highlight"><span class="s2">&quot;&quot;</span></code></p>
<h3 id="example_5" networking-nat-extraStopCommands-example="networking-nat-extraStopCommands-example">Example</h3>
<p><code class="highlight"><span class="s2">&quot;iptables -D INPUT -p icmp -j ACCEPT || true&quot;</span></code></p>
<p><strong>Declared by:</strong> <a href="https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat-iptables.nix">https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat-iptables.nix</a></p>
<h2 id="networkingnatforwardports" networking-nat-forwardPorts="networking-nat-forwardPorts"><code>networking.nat.forwardPorts</code></h2>
<p>List of forwarded ports from the external interface to
internal destinations by using DNAT. Destination can be
IPv6 if IPv6 NAT is enabled.</p>
<p><strong>Type:</strong> <code>list of (submodule)</code></p>
<h3 id="default_8" networking-nat-forwardPorts-default="networking-nat-forwardPorts-default">Default</h3>
<p><code class="highlight"><span class="p">[</span> <span class="p">]</span></code></p>
<h3 id="example_6" networking-nat-forwardPorts-example="networking-nat-forwardPorts-example">Example</h3>
<p><code class="highlight"><span class="p">[</span><span class="p">{</span><span class="ss">destination</span> <span class="o">=</span> <span class="s2">&quot;10.0.0.1:80&quot;</span><span class="p">;</span><span class="ss">proto</span> <span class="o">=</span> <span class="s2">&quot;tcp&quot;</span><span class="p">;</span><span class="ss">sourcePort</span> <span class="o">=</span> <span class="mi">8080</span><span class="p">;</span><span class="p">}</span><span class="p">{</span><span class="ss">destination</span> <span class="o">=</span> <span class="s2">&quot;[fc00::2]:80&quot;</span><span class="p">;</span><span class="ss">proto</span> <span class="o">=</span> <span class="s2">&quot;tcp&quot;</span><span class="p">;</span><span class="ss">sourcePort</span> <span class="o">=</span> <span class="mi">8080</span><span class="p">;</span><span class="p">}</span><span class="p">]</span></code></p>
<p><strong>Declared by:</strong> <a href="https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix">https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix</a></p>
<h2 id="networkingnatforwardportsdestination" networking-nat-forwardPorts-_-destination="networking-nat-forwardPorts-*-destination"><code>networking.nat.forwardPorts.*.destination</code></h2>
<p>Forward connection to destination ip:port (or [ipv6]:port); to specify a port range, use ip:start-end
<strong>Type:</strong> <code>string</code></p>
<h3 id="example_7" networking-nat-forwardPorts-_-destination-example="networking-nat-forwardPorts-*-destination-example">Example</h3>
<p><code class="highlight"><span class="s2">&quot;10.0.0.1:80&quot;</span></code></p>
<p><strong>Declared by:</strong> <a href="https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix">https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix</a></p>
<h2 id="networkingnatforwardportsloopbackips" networking-nat-forwardPorts-_-loopbackIPs="networking-nat-forwardPorts-*-loopbackIPs"><code>networking.nat.forwardPorts.*.loopbackIPs</code></h2>
<p>Public IPs for NAT reflection; for connections to <code>loopbackip:sourcePort</code> from the host itself and from other hosts behind NAT
<strong>Type:</strong> <code>list of string</code></p>
<h3 id="default_9" networking-nat-forwardPorts-_-loopbackIPs-default="networking-nat-forwardPorts-*-loopbackIPs-default">Default</h3>
<p><code class="highlight"><span class="p">[</span> <span class="p">]</span></code></p>
<h3 id="example_8" networking-nat-forwardPorts-_-loopbackIPs-example="networking-nat-forwardPorts-*-loopbackIPs-example">Example</h3>
<p><code class="highlight"><span class="p">[</span> <span class="s2">&quot;55.1.2.3&quot;</span> <span class="p">]</span></code></p>
<p><strong>Declared by:</strong> <a href="https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix">https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix</a></p>
<h2 id="networkingnatforwardportsproto" networking-nat-forwardPorts-_-proto="networking-nat-forwardPorts-*-proto"><code>networking.nat.forwardPorts.*.proto</code></h2>
<p>Protocol of forwarded connection
<strong>Type:</strong> <code>string</code></p>
<h3 id="default_10" networking-nat-forwardPorts-_-proto-default="networking-nat-forwardPorts-*-proto-default">Default</h3>
<p><code class="highlight"><span class="s2">&quot;tcp&quot;</span></code></p>
<h3 id="example_9" networking-nat-forwardPorts-_-proto-example="networking-nat-forwardPorts-*-proto-example">Example</h3>
<p><code class="highlight"><span class="s2">&quot;udp&quot;</span></code></p>
<p><strong>Declared by:</strong> <a href="https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix">https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix</a></p>
<h2 id="networkingnatforwardportssourceport" networking-nat-forwardPorts-_-sourcePort="networking-nat-forwardPorts-*-sourcePort"><code>networking.nat.forwardPorts.*.sourcePort</code></h2>
<p>Source port of the external interface; to specify a port range, use a string with a colon (e.g. "60000:61000")
<strong>Type:</strong> <code>signed integer or string matching the pattern [[:digit:]]+:[[:digit:]]+</code></p>
<h3 id="example_10" networking-nat-forwardPorts-_-sourcePort-example="networking-nat-forwardPorts-*-sourcePort-example">Example</h3>
<p><code class="highlight"><span class="mi">8080</span></code></p>
<p><strong>Declared by:</strong> <a href="https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix">https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix</a></p>
<h2 id="networkingnatinternalips" networking-nat-internalIPs="networking-nat-internalIPs"><code>networking.nat.internalIPs</code></h2>
<p>The IP address ranges for which to perform NAT. Packets
coming from these addresses (on any interface) and destined
for the external interface will be rewritten.</p>
<p><strong>Type:</strong> <code>list of string</code></p>
<h3 id="default_11" networking-nat-internalIPs-default="networking-nat-internalIPs-default">Default</h3>
<p><code class="highlight"><span class="p">[</span> <span class="p">]</span></code></p>
<h3 id="example_11" networking-nat-internalIPs-example="networking-nat-internalIPs-example">Example</h3>
<p><code class="highlight"><span class="p">[</span><span class="s2">&quot;192.168.1.0/24&quot;</span><span class="p">]</span></code></p>
<p><strong>Declared by:</strong> <a href="https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix">https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix</a></p>
<h2 id="networkingnatinternalipv6s" networking-nat-internalIPv6s="networking-nat-internalIPv6s"><code>networking.nat.internalIPv6s</code></h2>
<p>The IPv6 address ranges for which to perform NAT. Packets
coming from these addresses (on any interface) and destined
for the external interface will be rewritten.</p>
<p><strong>Type:</strong> <code>list of string</code></p>
<h3 id="default_12" networking-nat-internalIPv6s-default="networking-nat-internalIPv6s-default">Default</h3>
<p><code class="highlight"><span class="p">[</span> <span class="p">]</span></code></p>
<h3 id="example_12" networking-nat-internalIPv6s-example="networking-nat-internalIPv6s-example">Example</h3>
<p><code class="highlight"><span class="p">[</span><span class="s2">&quot;fc00::/64&quot;</span><span class="p">]</span></code></p>
<p><strong>Declared by:</strong> <a href="https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix">https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix</a></p>
<h2 id="networkingnatinternalinterfaces" networking-nat-internalInterfaces="networking-nat-internalInterfaces"><code>networking.nat.internalInterfaces</code></h2>
<p>The interfaces for which to perform NAT. Packets coming from
these interface and destined for the external interface will
be rewritten.</p>
<p><strong>Type:</strong> <code>list of string</code></p>
<h3 id="default_13" networking-nat-internalInterfaces-default="networking-nat-internalInterfaces-default">Default</h3>
<p><code class="highlight"><span class="p">[</span> <span class="p">]</span></code></p>
<h3 id="example_13" networking-nat-internalInterfaces-example="networking-nat-internalInterfaces-example">Example</h3>
<p><code class="highlight"><span class="p">[</span><span class="s2">&quot;eth0&quot;</span><span class="p">]</span></code></p>
<p><strong>Declared by:</strong> <a href="https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix">https://github.com/nixos/nixpkgs/blob/master/nixos/modules/services/networking/nat.nix</a></p>
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