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RE: Nokia IP 330's HA with VRRP problems
From: "Grabowski, David" <david.grabowski () us mizuho-sc com>
Date: Wed, 26 Nov 2003 11:35:29 -0500

-----Original Message-----
From: William Sykes [mailto:wsykes () deepnines com]
Sent: Tuesday, November 25, 2003 11:19 AM
To: security-basics () securityfocus com
Subject: Nokia IP 330's HA with VRRP problems


All, 
I have a client that has two Nokia 330's in HA using VRRP NG FP3.
When we pull the plug on the Primary and fail to the secondary
everything works as as planned. The secondary begins to pass traffic.

The problem occurs when the Primary is brought back online 
(plugged in).
The primary Firewall loses the ARP table, and no network traffic will
pass.. 

The fix we are using is to reboot both firewalls.

Has anybody experienced this? or anything like it ?
thanks

Are you simply pulling out a network cable or are you actually killing
power to the box?

In the case of killing power to the box, you may need to adjust the VRRP
coldstart delay so that the interfaces won't go out of the 'init' state
until a sufficient time has passed for other services (routing protocols
and FW-1 sync) have had time to configure properly.

In the case of simply pulling a network cable, perhaps you've got an
issue with your switch and MAC caching. The switch has no reason to
allow the VIP MAC to move to another port, because the old port still
has a valid link. To test this, try using hubs.

For more help, I'd suggest either the FW-1 mailing list hosted by
checkpoint, or the FW-1 Gurus mailing list hosted by Phoneboy.

-Dave
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