Hi,
I have an if_bridge, thus:
bridge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
1500
inet XX.XX.XXX.20 netmask 0xfffffff8 broadcast XX.XX.XXX.23
inet 192.168.1.30 netmask 0xffffff00 broadcast 192.168.1.255
On one side of the bridge is a layer 2 switch with clients of a mix of
addresses from these two subnets. On the other side is a gateway
XX.XX.XXX.22. All clients can communicate through the gateway correctly,
with the 192.168.1.x subnet being NAT'd.
However, clients from one subnet cannot communicate with clients from
the other subnet. Pinging a 192.168.1.X machine from the other subnet
shows the packet incorrectly routed out through the gateway, not back
through the interface it came.
The routing table shows that both subnets should be routed through the
bridge:
XX.XX.XXX.XX/29 link#5 UC 0 0 bridge
192.168.1.0/24 link#5 UC 0 0 bridge
The bridge host itself can ping machines on both subnets. So why is the
if_bridge routing packets destined for the private subnet out through
the default route instead?
(The specific hosts being pinged are present in the routing table from
ARP lookups. They are all destined for the bridge interface.)
--
Jay L. T. Cornwall
http://www.jcornwall.me.uk/
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