diff options
| author | Mikael Magnusson <mikma@users.sourceforge.net> | 2019-05-03 21:54:48 +0000 |
|---|---|---|
| committer | Mikael Magnusson <mikma@users.sourceforge.net> | 2019-05-04 20:28:28 +0000 |
| commit | 2a146307bc5d5d4703893edcbbf1e2006ad84bb0 (patch) | |
| tree | ab931d8cd92a61e3eae6d7d80e38bc2346e95ed5 /files/etc | |
| parent | 3f997d12e574de2668ded4fa7e95cee9132ac50f (diff) | |
Fill DHCP checksums
Try to work-around broken DHCP clients (such as FreeBSD),
with an iptables rule added to the default /etc/firewall.user.
And install the required iptables-mod-checksum package by default.
Diffstat (limited to 'files/etc')
| -rw-r--r-- | files/etc/uci-defaults/70_fill-dhcp-checksum | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/files/etc/uci-defaults/70_fill-dhcp-checksum b/files/etc/uci-defaults/70_fill-dhcp-checksum new file mode 100644 index 0000000..6e9224a --- /dev/null +++ b/files/etc/uci-defaults/70_fill-dhcp-checksum @@ -0,0 +1,11 @@ +#!/bin/sh + +cat >> /etc/firewall.user << EOF + +# Fill DHCP checksums, try to work-around broken DHCP clients (such as FreeBSD). +# It requires iptables-mod-checksum which is installed by default in lxd-openwrt. +if [ -e /usr/lib/iptables/libxt_CHECKSUM.so ]; then + iptables -t mangle -A OUTPUT -p udp -m udp --dport 68 -j CHECKSUM --checksum-fill +fi + +EOF |