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RandomInsano
Asked: 2009-12-28 01:47:24 +0800 CST

OpenBSD Wireless Bridge, outbound traffic gets no response

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So fun times this weekend trying to build a simple OpenBSD bridge for my XBox360. I want my ural network card to be bridged with my re network card to forward some traffic. Bleh.

I essentially cloned everything from http://www.openbsd.org/faq/faq6.html#Bridge but changed the device names and the fancy wireless setup.

The system connects to my Wifi router, grabs an IP, the bridge is up as far as I can tell (pftop says packets are getting through from one interface to another), all is wonderfulish.

Problem is, I get NO response from DHCP, or anything for that matter comming back into the bridge. Why am I getting no responses (including telnet into my router's web interface)?

Configs are as follows (or close anyhow, doing this from memory):

bridgename.bridge0:

re0
ural0
up

hostname.ural0: (Names and passworkds have been changed to protect the innocent)

dhcp              \
nwid   'blah'     \
wpapsk 'passverd' \

hostname.re0:

up

pf.conf:

pass in  quick on ural0 all
pass out quick on ural0 all
pass in  quick on re0   all
pass out quick on re0   all

rc.conf:

Some stuff about routing is turned on (this was after failure, and really routing shouldn't need to be done on a bridge anyway).

I mean, it should be brain-dead simple. Why is this thing being such a huge pain?! I've done this in Linux once and that worked fine. Stupid everything...

openbsd

1 Answers

  1. Best Answer

    Unfortunately it's not possible for a wireless interface to participate in a bridge unless operating in hostap mode. Ref threads "Wireless bridge" and "Wireless bridge setup" on openbsd-misc.

    To understand why, and how this can sometimes be achieved in Linux, you can read this.

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