From: marvin greenlee (marvin@ccbootcamp.com)
Date: Tue Jan 04 2005 - 19:05:46 GMT-3
I would hope that the wording of the requirement would steer you in one
direction or another. When in doubt, ask the proctor. I would be very
careful about making assumptions regarding a host's capabilities.
As always, the exact wording of the scenario can make the difference. Even
if they were to directly state not to use HSRP, it doesn't mean that there
wouldn't be other options (like VRRP).
- Marvin Greenlee, CCIE#12237, CCSI# 30483
Network Learning Inc
marvin@ccbootcamp.com
www.ccbootcamp.com (Cisco Training)
-----Original Message-----
From: ccie2be [mailto:ccie2be@nyc.rr.com]
Sent: Tuesday, January 04, 2005 1:51 PM
To: marvin greenlee; ccielab@groupstudy.com
Subject: Re: dhcp default-router vs hsrp [bcc][faked-from]
Hi Marvin,
Thanks for your response.
Given the difference in funtionality between these 2 methods, is it your
opinion that in the lab,
if all that is specified is the need for redundancy, we should be bias
towards using hsrp?
Thanks again, Tim
----- Original Message -----
From: "marvin greenlee" <marvin@ccbootcamp.com>
To: "'ccie2be'" <ccie2be@nyc.rr.com>; <ccielab@groupstudy.com>
Sent: Tuesday, January 04, 2005 4:45 PM
Subject: RE: dhcp default-router vs hsrp [bcc][faked-from]
> With DHCP, if multiple default routers are provided, it is up to the host
to
> determine the availability of the gateway, and, if necessary, switch to
the
> next default. Depending on the hosts' functionality, it may not properly
> determine the availability.
>
> By configuring HSRP, you can remove the responsibility for determining
> availability from the host, and let the routers do the work.
>
> - Marvin Greenlee, CCIE#12237, CCSI# 30483
> Network Learning Inc
> marvin@ccbootcamp.com
> www.ccbootcamp.com (Cisco Training)
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> ccie2be
> Sent: Tuesday, January 04, 2005 1:22 PM
> To: Group Study
> Subject: dhcp default-router vs hsrp [bcc][faked-from]
> Importance: Low
>
> Hi guys,
>
> In IE lab 13, task 12.3, the requirement was to provide redundancy for
dhcp
> clients on a given lan segment -
>
> "The default gateway for these hosts should be R6. If R6 is down, R3
should
> be the default gateway."
>
> My immediate thought was to use the dhcp command, default-router <R6's
addr>
> <R3's addr>.
>
> But, the SG shows HSRP being configured instead.
>
> My question is in the real lab, if there's a similar requirement, would
> either
> approach be acceptable?
>
> I acknowledge that using hsrp is probably better for a couple of reasons -
> faster switchover, works with all hosts - but
>
> if I used the default-router command, is that wrong?
>
> TIA, Tim
>
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