From: Brian Hescock (bhescock@xxxxxxxxx)
Date: Thu Dec 28 2000 - 00:29:52 GMT-3
I may have missed some of the earlier thread but what would be beneficial
is show version from the routers and show run (that should be a given
anytime someone posts a problem with a production network). Not having
another other information, it sounds like a bug. The reason I say it
sounds like a bug is because the default being redistributed by the 4000
came back as soon as a clear ip route * was done and the problem comes
back after a few days. Had the problem been something related to a change
in the network itself, the default route should have come back by
itself. And if that situation hadn't changed the default route should
have never come back after clearing the routes, the situation should have
remained the same.
Brian
On Wed, 27 Dec 2000, ChrisH wrote:
> I assume you are doing floating static route? Did you filter out EIGRP and
> SNMP in your access-list? Did you disable cdp? For example:
>
> interface BRI0/0
> bandwidth 56
> ip address 10.1.x.y 255.255.255.0
> no ip directed-broadcast
> encapsulation ppp
> no ip route-cache
> no ip mroute-cache
> dialer idle-timeout 300
> dialer wait-for-carrier-time 10
> dialer map ip 10.1.x.2 name hq speed 56 broadcast 18735185470
> dialer map ip 10.1.x.1 name hq speed 56 broadcast 18735185472
> dialer-group 1
> isdn switch-type basic-ni
> no cdp enable
> ppp authentication chap
> ppp multilink
> !
> router eigrp 1
> network 10.0.0.0
> no auto-summary
> ip classless
> ip route 0.0.0.0 0.0.0.0 10.1.2.1 240
> ip route 10.11.0.1 255.255.255.255 BRI0/0
> ip route 10.99.99.99 255.255.255.255 BRI0/0
> no ip http server
> !
> access-list 102 deny eigrp any any
> access-list 102 deny udp any any eq snmp
> access-list 102 permit ip any any
> dialer-list 1 protocol ip list 102
>
>
> Chris
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Jim Bond
> Sent: Wednesday, December 27, 2000 8:08 PM
> To: cisco@groupstudy.com
> Cc: ccielab@groupstudy.com
> Subject: EIGRP problem
>
>
> Hello,
>
> We have 4000 router and 5200 router at central office,
> 2500 routers and 3640 routers at branch office. 4000
> and 2500s are connected with frame relay, 5200 and
> 3640s are connected with ISDN backup. Eigrp is the
> only protocol. We have a default route from 4000 and
> it got advertised on 2500s and 3640s as AD /170. We
> also configure a default route on 3640s with AD /200
> so in case frame is down, /200 default route will take
> over and then can bring up ISDN.
>
> The problem is sometimes when frame is ok, 3640 router
> default route changes to AD /200 and hence brings up
> ISDN backup (3640 also serves as RAS server). When I
> do "clear ip route", the AD /170 default route will
> come back again, then some days later, it'll get
> replaced by the AD /200 one.
>
> We use the same IOS on all routers but this only
> happened on some branch offices, not all of them. Any
> idea what wrong it is?
>
> Thanks in advance.
>
>
> Jim
>
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