22 lines
535 B
Bash
Executable File
22 lines
535 B
Bash
Executable File
#!/bin/sh
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set -e
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# Configure the MTU for the interface
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# See https://github.com/NetworkConfiguration/dhcpcd/issues/67 and https://launchpad.net/bugs/2056194
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set_mtu() {
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local mtu="$1" interface="$2"
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if [ "$mtu" -lt 576 ]; then
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echo "MTU $mtu is smaller than 576 which is the minimum for dhcpcd. Ignoring MTU." >&2
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return
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fi
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echo "${mtu}" > "/sys/class/net/${interface}/mtu"
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echo "MTU of ${interface} set to ${mtu}"
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}
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if ${if_up?} && [ -n "${new_interface_mtu-}" ]; then
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set_mtu "${new_interface_mtu}" "${interface?}"
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fi
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