From: Silvio Nunes (silvio_98@hotmail.com)
Date: Wed Feb 19 2003 - 14:37:10 GMT-3
Hello, read this !!!
http://www.cisco.com/en/US/tech/tk648/tk365/technologies_tech_note09186a0080093fd8.shtml
Silvio.
>From: "Cezar Fistik" <cfistik@moldovacc.md>
>Reply-To: "Cezar Fistik" <cfistik@moldovacc.md>
>To: ccielab@groupstudy.com
>Subject: RIP1 auto summary at class boundary
>Date: Wed, 19 Feb 2003 18:09:36 +0200
>
>Hi all,
>
>The network is as follows:
>
>3 rouers interconnected through Ethernet. All routers are running RIP1. One
>of the routers is also running OSPF on its serial interface which connets
>to the rest of the network. All subnets have a /24 mask, including
>loopbacks on each router.
>
>The porblem is that it seems that RIP automatically summarises all networks
>to class boundary. So when the routers receive routes about loobacks on
>other routers it looks just like that:
>
>10.0.0.0/8 ...40.40.40.14 eth 0
> 40.40.40.13 eth 0
>
>(40.40.40.0/24 is the subnet on ethernet network)
>
>Of course I know that RIP1 is classless, but I also know that it must
>assume the subnet mask being the same as the mask on the interface that the
>route was received. Am I right?
>
>When I perform redistribution from OSPF, where all routes are with /24 mask
>too, the same thing happens. RIP routers receive only calssfull summary of
>those routes.
>
>Please, give me a piece of advise regarding this. Is it normal behavior or
>I'm getting to tired?
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