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Old 10-27-2008, 08:46 AM   #1
xxxx
LQ Newbie
 
Registered: Aug 2007
Posts: 18

Rep: Reputation: 0
Strange Problem with Debian and maybe Bonding or Router??


Hi,

i have a really weird problem here.
I got some Debian Etch 4.0 running with bonding ifenslave.

There around 30 other linux Etch 4 servers in the same Subnet, and 10 with bonding enabled.

They are connected to 2xNortel 5510 Stack and running good with MultiLinkTrunk.

Everything ok here.

Now i changed the Ip-Adress of a bonding-box to another ip from the same subnet. Lets call it WWW1
All ok, i can ping all Servers, also can route out.

BUT:
Now i have ONE non-bonding server which can NOT ping nor communicate in any way with the changed bonding-server and vice versa. Lets call it INT

I start "ping INT" on WWW1
I start "tcpdump host WWW1" on INT

WWW1 tells me:
Code:
www1:~# ping INT
PING INT (89.250.xxx.xxx) 56(84) bytes of data.
From www1 (89.250.xxxxxx) icmp_seq=2 Destination Host Unreachable
From www1 (89.250.xxxxxx) icmp_seq=3 Destination Host Unreachable
From www1 (89.250.xxxxxx) icmp_seq=4 Destination Host Unreachable
INT tells me:
Code:
int:~# tcpdump host 89.250.xxxxxxx
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
14:39:19.060533 arp who-has INT.... tell www1
14:39:19.061574 arp reply INT is-at 0x:e0:81:74:xx:xx (oui Unknown)
14:39:20.060447 arp who-has INT tell www1
14:39:20.060451 arp reply INT is-at 0x:e0:81:74:xx:xx (oui Unknown)
14:39:21.060403 arp who-has INT tell www1
14:39:21.060414 arp reply INT is-at 0x:e0:81:74:xx:xx (oui Unknown)
also the ARP tables shows following on INT:
Code:
www1                   (unvollständig)                           eth0
where unvollständig should be the MAC from the bond0 of www1...

Everything worked like a charme b4 i changed the ip-adress of WWW1.

Everything is still working between all other Servers, just those 2 make problems and cant communicate.

I dont know if its Switch problem, Network Problem, ARP problem?


Please help and sorry for my english

Sascha

Last edited by xxxx; 10-27-2008 at 08:55 AM.
 
Old 10-28-2008, 03:34 AM   #2
xxxx
LQ Newbie
 
Registered: Aug 2007
Posts: 18

Original Poster
Rep: Reputation: 0
[solved]

reboot of www1 solved the issue -> lol
 
  


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