Re: IP address changes on a P520 after a reboot


steven_nospam at Yahoo! Canada wrote:
I issued the following command to check my entire system for the "bad"
IP address:

find / -type f -exec grep 192.168.77.252 {} \;

The only files that showed up were "/etc/hosts_save" and the find
command I issued was listed in a temp file under /proc.
The lsattr command presently shows the right IP.
The netstat -rn shows no routes that indicate the old IP.

Still, each time we reboot the server, we have to have someone go into
smit tcpip and the "Minimum Configuration" area. They then run the
command (mktcpip) in smit and pop in the right IP. Another issue we
noticed is that we use a Digi Portserver II unit on the machine and
have Realport configured for a modem tty...that tty and its associated
sa adapter disappeared from the system during the reboot also....lsdev
showed no tty2 yet we found a file /dev/tty2 on the system.

I am going to remove the IP from the /etc/hosts_save, but as far as I
can tell that was just a copy of the hosts file we saved at one point
to try and figure out why it was changing.

My guess is that the AIX is doing some sort of lookup from an invalid
network entry out there somewhere, but I'll be damned if I can figure
out where. Could some arp table be keeping track of the mac address
from the systems and resetting the IP to the one it remembers for the
system?

Thanks all for the suggestions so far...

Steve

Is this a cluster 1600 system or SP system? Do you have an HCM? Do you
run CSM? And of course it doesn't use a DHCP server to get the the IP
address. What about an old bootp server?

Did you boot into SMS and check things out?

We have a p520 and p570's, with an HMC.

I have configured the IP address of the server from SMS - to allow it
to install from a NIM server. I don't know, off the top of my head, if
you can configure the IP address and have it persist across reboots,
especially in normal mode. Are you booting into normal mode and not
service mode?

And I'm out of ideas. Good luck.

.

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