From: Scott Morris (swm@emanon.com)
Date: Wed Mar 31 2004 - 11:14:28 GMT-3
On a side note, many different workstations will accept IRDP announcements
if they happen.
As an added "bonus", put a sniffer on a Windows workstation sometime...
Even though it gets an address and gateway via DHCP, it will still send out
multiple queries to 224.0.0.2 (AllRouters). It's interesting behavior to
note.... So there may be some mechanisms in place even if there are no
active DHCP servers. Windows machines have done that even since before
their 169.254.x.x auto-addressing.
Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, CISSP,
JNCIS, et al.
IPExpert CCIE Program Manager
IPExpert Sr. Technical Instructor
swm@emanon.com/smorris@ipexpert.net
http://www.ipexpert.net
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
cn_20004
Sent: Wednesday, March 31, 2004 3:54 AM
To: 'Wes Smith'
Cc: ccielab@groupstudy.com
Subject: RE: IRDP ???
nod ,
use command like this:
(dhcp-config)default-route 123.1.1.1 123.1.1.2
20004
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Wes
Smith
Sent: Wednesday, March 31, 2004 2:34 AM
Cc: ccielab@groupstudy.com
Subject: Re: IRDP ???
I think the clue here is that you've been told to config a DHCP server.
This way you can provide two default gateways from your dhcp server..
W2K will use the first unless it's down.
micsoniu@telus.net wrote:
>Default gateway problem:
>
>Two routers R1 and R2 are attached to the same LAN. R1 provides dynamic
>IP addressing to workstations locatde on this LAN. R2 will be the
>default gateway but if R2 is not reachable, R1 will become the gateway
>for the machines that already acquired IP addresses. NO HSRP IS ALLOWED !
>
>1. Is IRDP the appropriate solution ? - Configure R1 and R2 to
>advertise R2's IP address using different IRDP piorities ? ( let's say
>100 for R2 and 50 for R1)...
>
>2. If IRDP is the right solution, how do we know that IRDP is enabled
>on workstations ?
>
>3. If this is not the right solution, any suggestions would be
>appreciated
...
>
>Thank you
>
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