From: Sayeed Kachroo (sayeedk@hotmail.com)
Date: Wed Aug 17 2005 - 19:46:09 GMT-3
You can also you default information-orignate under router rip to inject
the default route with having gatway of last resort on your router.
SK
--------------------------------------------------------------------
From: gladston@br.ibm.com
Reply-To: gladston@br.ibm.com
To: ccielab@groupstudy.com
Subject: IP default-network and RIP
Date: Wed, 17 Aug 2005 16:09:07 -0400
>============
>quoted
>RIP advertises a route to 0.0.0.0 if a gateway of last resort is
selected using the ip default-network command.
>This network specified in the ip default-network command need not be
explicitly advertised under RIP. For example, note that the gateway
of last resort on this router was learned using the combination of
the ip route and ip default-network commands. If you enable RIP on
this router, RIP advertises a route to 0.0.0.0
>
>http://www.cisco.com/en/US/customer/tech/tk365/technologies_tech_note09186a0080094374.shtml#ipnetwork
>============
>
>This is not the behaviour on 12.2T
>
>RIP only advertises 0.0.0.0 if the default network is under RIP.
>
>Is that what you got on tests?
>
>
>Tests:
>
>150.100.1.0 is under RIP
>69.69.10.0 is not
>R4 receives routes from R1
>
>Rack2R1(config)#ip default-network 150.100.1.0
>Rack2R1(config)#ip default-network 150.100.0.0
>
>Rack2R1#sh ip route
>Gateway of last resort is 150.100.1.0 to network 150.100.0.0
>
>Rack2R4#sir
>Gateway of last resort is 148.5.14.1 to network 0.0.0.0
>
>
>Rack2R1(config)# ip default-network 69.69.10.0
>Rack2R1(config)# ip default-network 69.0.0.0
>
>Rack2R1#sh ip route
>Gateway of last resort is 69.69.10.0 to network 69.0.0.0
>
>Rack2R4#sh ip route
>Gateway of last resort is not set
>
>Tested on C2600-J1S3-M, Version 12.2(15)T5
>
>(eheh, I am wondering if Cisco guys will stop changing the
behaviour, or keep the documentation up to date)
>
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