From: Thomas Surber (tsurber@xxxxxxxxxxxxx)
Date: Wed Jan 12 2000 - 18:44:04 GMT-3
For those that want to know.
ICMP Router Discovery Protocol (irdp)
1. Used to find a default gateway out of a ip network.
2. Used by routers (cisco, nortel...) and unix boxes, there is code at
cisco for running on a Sun.
3. IRDP uses the broadcast address of the network it is on or if
enabled a Multicast address (224.0.0.1)
4. Cisco's version of IRDP will look into eigrp and ospf packets and
pick a gateway from them.
to enable
config-interface-> ip irdp <--- Turns IRDP
it on (some ios versions need -- ip irdp enable
config-interface-> ip irdp multicast <--- Multicast
address is used, not ip network broadcast address
config-interface-> ip irdp preference 255 <--- Set preference
value on an interface, highest interface wins
default is 0 (zero) number can be negative or positive
Thomas
----- Original Message -----
From: Thomas Surber
To: CCIELabMailingList
Sent: Tuesday, January 11, 2000 9:12 PM
Subject: IRDP what is it and how does it work?
I can't seem to fined must on CCO for IRDP what is it used for and
how?
Thomas
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