From: David Price (dprice@plugnpay.com)
Date: Tue Sep 09 2003 - 12:28:16 EDT
Not sure if this is a Sun or a Cisco issue.
I have a SunFire V480 server that is picking up the wrong MAC address for a
router.
The V480 has 2 Network cards. Problem goes away if I disable 2nd card.
Solaris 8.
The problem first occurs when trying to access an IP that has a path through
this "correct" router (xxx.xxx.xxx.227). The V480 will pick up the arp
address of a different "wrong" router and try to route the traffic through
it instead. It appears to me that it is trying to get the mac address
through the 2nd Ethernet card and when it can't find it, it grabs anyone it
finds.
If I first just try to access the "correct" router (xxx.xxx.xxx.227)
directly, before the arp gets messed up, I have no problem and the correct
mac address gets picked up.
The V480 has both a public and private IP's configured on its network cards.
The router I am having trouble reaching also has both a public and private
IP on it's ethernet interface as well. For the purposes of troubleshooting
I disabled ce1 but it did not help fix the problem.
Orignally the V480 would always pick up the mac address of the same,
"wrong", router. In troubleshooting, i disabled the ethernet interface of
this "wrong" router. The V480 then picked up the mac address of a
different, still incorrect, router. After re-enabling the ethernet
interface of the first "wrong" router the V480 still now prefers the second
"wrong" router.
Details are: The V480 has 2 network cards configured as follows:
the xxx.xxx.xxx.xxx is a public IP.
lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 1
inet 127.0.0.1 netmask ff000000
ce0:
flags=9040843<UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4,NOFAILOVER> mtu
1500 index 2
inet 10.120.3.131 netmask ffffff00 broadcast 10.120.3.255
groupname CEs
ether 0:3:ba:2a:e7:47
ce0:1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
inet 10.120.3.25 netmask ffffff00 broadcast 10.120.3.255
ce0:2: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
inet xxx.xxx.xxx.199 netmask ffffff80 broadcast xxx.xxx.xxx.xxx
ce0:3: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
inet 10.120.3.50 netmask ffffff00 broadcast 10.120.3.255
ce1:
flags=9040843<UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4,NOFAILOVER> mtu
1500 index 3
inet 10.120.3.132 netmask ffffff00 broadcast 10.120.3.255
groupname CEs
ether 0:3:ba:2a:e7:46
ce1:1: flags=1000842<BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 3
inet xxx.xxx.xxx.132 netmask ffffff80 broadcast xxx.xxxx.xxx.xxx
Route Table:
xxx.xxx.xxx.0 xxx.xxx.xxx.227 UG 1 2
Any thoughts would be greaty appreciated. If this is a Cisco and not a Sun
issue then I apologize for posting to this list.
Dave
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