I don't believe HSRP alters the routing behaviour of a router, hence a
router will always install the best path to a destination into its routing
table - be it through an HSRP standby router.
Why would you want to enable ICMP redirect, even though it negates the
object of running HSRP. I would expect the firewall to behave like an
ordinary host, and use the redirected router for that particular
destination.
CM
-----Original Message-----
From: Rashid Lohiya
To: [EMAIL PROTECTED]
Sent: 10/06/01 16:23
Subject: HSRP Query [7:7879]
Guys,
I need confirmation of a HSRP design.
I have 2 x Routers configured for HSRP on a LAN.
A packet is sent from a Firewall on the LAN to the HSRP virtual address,
as
the (default gateway).
The packet reaches the active router, (highest priority).
It compares the packets destination address/subnet in its routing table.
A). Will it send the packet back on the LAN, (to the standby routers
real
LAN interface address), if it finds that the standby router has a
shorter
route to the destination, than itself?
Or
B). Will it ignore that fact and shoot it accross its own WAN link
regardless.
I haven't had time to lab this just yet, but I'm quite sure the answer
should be A.
2nd query is I understand that ICMP redirect is switched off by default
if
HSRP is used, even if I was to switch this on, I was wondering if a
standard
firewall would actually take notice of the redirect and send the next
packet
to the router with the shorter path as advised by the ICMP redirect,
rather
than to the statically set default gateway, pointing to the virtual HSRP
address.
Regards,
Rashid Lohiya
[EMAIL PROTECTED]
020 8509 2990
07785 362626
www.pioneer-computers.com
London UK
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=7897&t=7879
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