From: Rob McMahon (Rob.McMahon@warwick.ac.uk)
Date: Wed Apr 26 2006 - 06:37:32 EDT
And the answer, for anyone that might be worried, was that an old, dead
machine which used to do the same job had been mistakenly restarted
after a power failure, and had come up far enough to configure its
network interfaces.
To be honest I had thought that some other machine might be responding,
but had discounted it because 1) there were no whinges about `Hardware
address 'xx:xx:xx:xx:xx;xx' trying to be our address yyy.yyy.yyy.yyy',
2) checking with `arp' gave the correct MAC address, and 3) the snoop
trace looked so odd. I still don't know where the whinging went, when I
found the supposedly dead machine there was enough on its console. I
guess I must have just been unlucky about my timing with `arp'.
Anyway, problem solved thanks, our fault and my confusion. The zombie
machine's power lead is now unplugged as a hint.
Thanks to Crist J. Clark for reminding me about
ndd /dev/ip ip_strict_dst_multihoming
on multi-homed machines, even though that wasn't the issue here.
Cheers,
Rob
Rob McMahon wrote:
> I asked this on the solarisx86 list without success, so I was
> wondering if anyone here can help. Apologies for the rather long and
> rambling post, I'm trying to include as much information as possible.
>
> Has anybody seen anything like this, or clues on how to solve it. We
>
> had a machine room power failure, after which everything came back,
> except the NFS listserv service on a 20z running Solaris 10, talking
> to an E3500 server running Solaris 8 fails with the following packet
> trace:
>
> listserv -> server TCP D=2049 S=54738 Syn Seq=358115738 Len=0
> Win=49640 Options=<mss 1460,nop,wscale 0,nop,nop,sackOK>
> server -> listserv TCP D=54738 S=2049 Syn Ack=358115739
> Seq=770867544 Len=0 Win=49640 Options=<nop,wscale 0,nop,nop,sackOK,mss
> 1460>
> listserv -> server TCP D=2049 S=54738 Rst Seq=358115739 Len=0
> Win=0
>
> Other TCP services seem fine. This listserv can talk to other servers
> normally...
>
> SunOS listserv 5.10 Generic_118844-19 i86pc i386 i86pc
-- E-Mail: Rob.McMahon@warwick.ac.uk PHONE: +44 24 7652 3037 Rob McMahon, IT Services, Warwick University, Coventry, CV4 7AL, England _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagers
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