mac address cleaning ignored ...

Zeus V Panchenko zeus at ibs.dn.ua
Fri Sep 3 18:01:59 UTC 2010


Hi All,

i have faced some "weird" mac address caching issue ... need help to
understand who is who :(

i have box A: FreeBSD 8.1-STABLE #2 amd64 
   and box B: FreeBSD 8.1-STABLE #3 amd64
both are connected to TP Link switch TL-SG5426

after nic change on box B i can ping box B from box A 
but i can not ping A from B ...

i see the box A continue to reply to the box B old nic mac address ...

how can it be possible if i have made:
- arp cleaning on box A
  after what arp shows correct mac for host B
-- pf reload/restart

- arp cleaning on box B
  after what arp shows correct mac for host B
-- pf reload/restart
-- cold reboot

- host/dns/mac cleaning on switch
  after what mac table contains correct mac for host B
-- switch soft reload



on box A i have quagga running ... can it cach mac addresses?

the nic change was needed due to the heavy onboard nic re(4) 
card=0x83a31043 chip=0x816810ec  Gigabit Ethernet NIC(NDIS 6.0) (RTL8168/8111/8111c)
flapping


really i have no idea what to do except cold reboot of box A ...

but who can to continue to remembers box B old nic mac address after all of that cleanings?

thanks in advance
-- 
Zeus V. Panchenko
IT Dpt., IBS ltd			      	        GMT+2 (EET)


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