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RE: IRDP in CCIE Lab & Real world use posted 08/03/2006
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I like the numbering.  :)

1.  it's simply an announcing architecture.  The "Hi, I'm a Router"
approach.
2.  Sort of.  Clients can hear multiple gateways all at once.  So they have
a selection to make unlike HSRP/VRRP/GLBP which makes the selection for
them.
2.  It's part of their programming.  Windows will always pause to listen for
this during bootup, even if a DHCP gateway is found.  Granted, it will
ignore anything learned, but listens nonetheless.  Go figure.  Linux I'm not
sure about, though I assume it will listen to the announcements as well.

HTH,

 
Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE
#153, CISSP, et al.
CCSI/JNCI-M/JNCI-J
IPExpert VP - Curriculum Development
IPExpert Sr. Technical Instructor
smorris@xxxxxxxxxxxx
http://www.ipexpert.com
 
 

-----Original Message-----
From: nobody@xxxxxxxxxxxxxx [mailto:nobody@xxxxxxxxxxxxxx] On Behalf Of
Mathew Fernando
Sent: Monday, July 31, 2006 7:31 PM
To: ccielab@xxxxxxxxxxxxxx
Subject: IRDP in CCIE Lab & Real world use

Hi Group,

When we configure a CISCO router to announce itself as a Default gateway via
IRDP, I think all we need is to configure "ip irdp"
(minimum) under the LAN interface. Here I believe router acts as a server.

1. Is the IRDP client/server architecture?

2. Is this a dynamic way to tell the clients compared to static ways like
HSRP/VVRP?

2. How do the Clients (Windows, Linux etc) learn this gateway?


Thanks

Mathew

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