From: kevin gannon (kevin@gannons.net)
Date: Mon Nov 14 2005 - 08:08:48 GMT-3
Not sure about all DHCP clients but I would say that they
are unable to detect the failure of one gateway over another
unless they 1) Use irdp 2) ping the default gateway every x seconds
and wait for response timeout. I think someone a few months
ago tested the dual gateways wiith some OS's and IRDP
was the only way to get the failure detection to work.
I woul rather use VRRP/HSRP to define a virtual IP address
and then give this out to the clients. Also with newer features
like GLBP you can do load balancing between multiple
routers acting as default gateways providing you with more
bandwidth useage possabilites.
Regards
Kevin
On 11/14/05, dusth@comcast.net <dusth@comcast.net> wrote:
> -------------- Original message --------------
>
> Hi Group,
> Has anyone tested dhcp configuration with multiple default gateway configuration assisgn to client? Seem like Cisco router DHCP configuration supports for multiple default gateway assign to client but I'm not sure if this is might be a desire solution for default gateway redundancy in case the primary gateway is down, then the secondary will pickup the job.
>
> !
> ip dhcp pool abc
> network 172.16.0.0 255.255.255.0
> default-router 172.16.1.1 172.16.1.2
> dns-server 172.16.1.1
> !
> Thanks, Dustin
>
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