From owner-freebsd-net@FreeBSD.ORG  Fri Jun 20 07:39:19 2003
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From: "Han Hwei Woo" <hhwoo@nb.sympatico.ca>
To: <freebsd-net@freebsd.org>
Date: Fri, 20 Jun 2003 11:39:52 -0300
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Subject: VLAN/Bridge No response from trunk Interface
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Here's the network I'm trying to setup

            192.168.0.3                            192.168.0.1    =
192.168.0.2
OpenBSD | vlan0----><--- vlan0 | FreeBSD | em0 ---><--- em0 | Windows =
2000

with net.link.ether.bridge_cfg: vlan0,em0

If I try to ping the FreeBSD machine from OpenBSD, arp requests are sent =
out, and they are seen on both of the FreeBSD machine's interfaces. =
However, no arp response is generated.=20

So, I enter in the arp entries myself.

Once I do that, when I again try to ping the FreeBSD host from OpenBSD, =
the ping requests are seen on both the FreeBSD interfaces. However, no =
response is generated.=20

If I instead try to ping the OpenBSD machine from FreeBSD, the ping =
requests get to the OpenBSD machine, and the OpenBSD replies, and both =
the FreeBSD interfaces receive the reply, according to tcpdump. However, =
the ping program does not receive them.


I also tried this setup:

            192.168.0.3                            192.168.0.1    =
192.168.0.2
OpenBSD | vlan0----><--- vlan0 | FreeBSD | vlan1 ---><--- vlan0 | =
Windows 2000

with net.link.ether.bridge_cfg: vlan0,vlan1

And the same problem occurs. I have also tried with different network =
cards as the parent interface of vlan0 on FreeBSD (fxp0,dc0).


Han Hwei Woo
http://www.argosy.ca/~hhw