From: Raymond May (raymay30@xxxxxxxxxxx)
Date: Thu Dec 28 2000 - 17:37:05 GMT-3
I believe this is an IOS issue. We had a similar case with EIGRP external
routes disappearing. The only difference is that these were being
redistributed from BGP to EIGRP.
Brgds,
Ray May
>From: Brian Hescock <bhescock@cisco.com>
>Reply-To: Brian Hescock <bhescock@cisco.com>
>To: zheng jiang gu <zjgu@ce-air.com>
>CC: ChrisH <chrish@bjen.com>, Jim Bond <trycisco@yahoo.com>,
>cisco@groupstudy.com, ccielab@groupstudy.com
>Subject: Re: EIGRP problem
>Date: Thu, 28 Dec 2000 08:06:08 -0500 (EST)
>
>I can't make a suggestion without knowing what version of IOS you're
>already running on the routers... ;-) Send "show version" from the 3600
>and the 4000 so I can certain of the version / train you're
>running. Thanks.
>
>B.
>
>On Thu, 28 Dec 2000, zheng jiang gu wrote:
>
> > Should we update the ios to higher?
> > zjgu
> > ----- Original Message -----
> > From: Brian Hescock <bhescock@cisco.com>
> > To: ChrisH <chrish@bjen.com>
> > Cc: Jim Bond <trycisco@yahoo.com>; <cisco@groupstudy.com>;
><ccielab@groupstudy.com>
> > Sent: Thursday, December 28, 2000 11:29 AM
> > Subject: RE: EIGRP problem
> >
> >
> > > 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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