Meaning of Bridge-Check in iptables flowchart

Posted by networkIT on Super User See other posts from Super User or by networkIT
Published on 2014-08-24T14:55:41Z Indexed on 2014/08/24 16:22 UTC
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linux

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networking

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iptables

In the famous iptables flow-chart

what does bridge-check exactly stands for ? I couldn't find any documentation. The only clue I found was while scanning the MikroTik RouterOS documentation ( RouterOS is build upon a Linux 2.6.16 kernel ), I found this :

In-interface Bridge = Checks if the input interface is a port for a bridge or is the bridge.

Manual:Packet Flow

Comparing both flow-charts brings clues that iptables Bridge-check might equal MikroTik In-Interface Bridge. Is this true ? Else, what might be the meaning of iptables Bridge-Check ?

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