Bridging Broken in 1.2?

Matthew Dillon dillon at apollo.backplane.com
Wed Apr 20 10:22:33 PDT 2005


:

:Since everyone who's complained about one thing
:or another has had an address set, why would you
:test it without one? I can try it with no address
:later today, but with and without an address
:seems like a different case. Also, make sure your
:ARP cache is clear before trying to bridge
:something, because someone said it had something
:to do with ARP handling (obviously they need to
:be broadcast by the bridge).
:
:Danial

    I am still able to talk across both sides of the bridge after clearing
    the arp cache on all machines involved, so that isn't it.

    The typical way to configure a bridge is to configure an address on only
    one of the interfaces, which is what I've done.

    Hmm.  This is interesting.  If I configure an address on both interfaces
    it only works with one of the addresses.  But I'm not sure if that type
    of configuration is even supposed to work.  Try configuring an address
    on only one of the interfaces (and do a clean reboot to test it in that
    configuration).

					-Matt
					Matthew Dillon 
					<dillon at xxxxxxxxxxxxx>

   office_workstation <-> dhcp61(test box) <-> dhcp62(test box)
		        [bridging turned on]


office1# arp -d -a
216.240.41.2 (216.240.41.2) deleted
216.240.41.13 (216.240.41.13) deleted
216.240.41.15 (216.240.41.15) deleted
216.240.41.25 (216.240.41.25) deleted
216.240.41.26 (216.240.41.26) deleted
216.240.41.61 (216.240.41.61) deleted
216.240.41.62 (216.240.41.62) deleted
office1# ping dhcp62
[ run arp -d -a on dhcp61 which is the bridge ] 
[ run arp -d -a on dhcp62 ] 
PING dhcp62.backplane.com (216.240.41.62): 56 data bytes
64 bytes from 216.240.41.62: icmp_seq=0 ttl=64 time=0.306 ms
64 bytes from 216.240.41.62: icmp_seq=1 ttl=64 time=0.319 ms
^C
--- dhcp62.backplane.com ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max/stddev = 0.306/0.312/0.319/0.006 ms
office1# ping dhcp61
PING dhcp61.backplane.com (216.240.41.61): 56 data bytes
64 bytes from 216.240.41.61: icmp_seq=0 ttl=64 time=0.185 ms
64 bytes from 216.240.41.61: icmp_seq=1 ttl=64 time=0.212 ms
^C
--- dhcp61.backplane.com ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max/stddev = 0.185/0.199/0.212/0.013 ms
office1# 






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