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| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2012-05-08 19:36:44 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2012-05-08 19:36:47 +0200 |
| commit | 4981682cc19733f3ca43d3abd81dd4adbc9005d5 (patch) | |
| tree | 6c4583e26b8f12559defc11d0c141011a71e3de1 /Documentation/networking | |
| parent | ac3a546ac89fdf3c4b50e40039a5a7f6df4dda72 (diff) | |
| download | linux-4981682cc19733f3ca43d3abd81dd4adbc9005d5.tar.gz | |
netfilter: bridge: optionally set indev to vlan
if net.bridge.bridge-nf-filter-vlan-tagged sysctl is enabled, bridge netfilter removes the vlan header temporarily and then feeds the packet to ip(6)tables. When the new "bridge-nf-pass-vlan-input-device" sysctl is on (default off), then bridge netfilter will also set the in-interface to the vlan interface; if such an interface exists. This is needed to make iptables REDIRECT target work with "vlan-on-top-of-bridge" setups and to allow use of "iptables -i" to match the vlan device name. Also update Documentation with current brnf default settings. Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Bart De Schuymer <bdschuym@pandora.be> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'Documentation/networking')
| -rw-r--r-- | Documentation/networking/ip-sysctl.txt | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index 90b0c4fd275b..6f896b94abdc 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -1301,13 +1301,22 @@ bridge-nf-call-ip6tables - BOOLEAN bridge-nf-filter-vlan-tagged - BOOLEAN 1 : pass bridged vlan-tagged ARP/IP/IPv6 traffic to {arp,ip,ip6}tables. 0 : disable this. - Default: 1 + Default: 0 bridge-nf-filter-pppoe-tagged - BOOLEAN 1 : pass bridged pppoe-tagged IP/IPv6 traffic to {ip,ip6}tables. 0 : disable this. - Default: 1 + Default: 0 +bridge-nf-pass-vlan-input-dev - BOOLEAN + 1: if bridge-nf-filter-vlan-tagged is enabled, try to find a vlan + interface on the bridge and set the netfilter input device to the vlan. + This allows use of e.g. "iptables -i br0.1" and makes the REDIRECT + target work with vlan-on-top-of-bridge interfaces. When no matching + vlan interface is found, or this switch is off, the input device is + set to the bridge interface. + 0: disable bridge netfilter vlan interface lookup. + Default: 0 proc/sys/net/sctp/* Variables: |