diff options
| -rw-r--r-- | nixos/modules/tasks/network-interfaces.nix | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/nixos/modules/tasks/network-interfaces.nix b/nixos/modules/tasks/network-interfaces.nix index b1ab989f130..6b886468a4b 100644 --- a/nixos/modules/tasks/network-interfaces.nix +++ b/nixos/modules/tasks/network-interfaces.nix @@ -58,6 +58,15 @@ let ''; }; + mtu = mkOption { + default = null; + example = 9000; + type = types.nullOr types.int; + description = '' + MTU size for packets leaving the interface. Leave empty to use the default. + ''; + }; + virtual = mkOption { default = false; type = types.bool; @@ -342,6 +351,11 @@ in echo "setting MAC address to ${i.macAddress}..." ip link set "${i.name}" address "${i.macAddress}" '' + + optionalString (i.mtu != null) + '' + echo "setting MTU to ${toString i.mtu}..." + ip link set "${i.name}" mtu "${toString i.mtu}" + '' + optionalString (i.ipAddress != null) '' cur=$(ip -4 -o a show dev "${i.name}" | awk '{print $4}') |