From: Albert Lu (albert_ccie@xxxxxxxxx)
Date: Sun Nov 11 2001 - 19:12:34 GMT-3
how come? I thought I was suppose to enable split horizon, so that R4 won't
send back the routes that were learnt from R2?
-----Original Message-----
From: Steven Weber [mailto:itweber@earthlink.net]
Sent: Monday, November 12, 2001 9:08 AM
To: Albert Lu; erickbe@yahoo.com
Cc: ccielab@groupstudy.com
Subject: Re: I'm STUMPED!! EIGRP & IGRP Redistribution
so then disable it
HTH
Steve
----- Original Message -----
From: Albert Lu <albert_ccie@yahoo.com>
To: <erickbe@yahoo.com>
Cc: <ccielab@groupstudy.com>
Sent: Sunday, November 11, 2001 4:50 PM
Subject: RE: I'm STUMPED!! EIGRP & IGRP Redistribution
> Split horizon is enabled. I triple checked!! =)
>
> -----Original Message-----
> From: Erick B. [mailto:erickbe@yahoo.com]
> Sent: Monday, November 12, 2001 8:47 AM
> To: Albert Lu; ccielab@groupstudy.com
> Subject: Re: I'm STUMPED!! EIGRP & IGRP Redistribution
>
>
> Albert,
>
> Look into split horizon on R4.
>
> Erick
>
> --- Albert Lu <albert_ccie@yahoo.com> wrote:
> > Hello All,
> >
> > What can I say?? I give up!! Could someone please
> > take a look at my configs
> > and tell me why my 200.0.0.0/24 route is going into
> > hold down?
> >
> > Basically, the 2 routers that are involved in this
> > are R2 and R4 with R2
> > running EIGRP and IGRP, and R4 running IGRP only. R2
> > has a 200.0.0.2/32
> > loopback being redistributed from EIGRP into IGRP
> > and towards R4. R4 has a
> > 200.0.0.4/32 loopback being redistributed connected
> > into IGRP on R4.
> >
> > I've filtered out the propagation of the
> > 200.0.0.4/32 route into IGRP as can
> > be seen in the deny_200 route-map on R2, so the only
> > router that should be
> > getting any 200.0.0.0 routes should be R2 seeing
> > R4's loopback of
> > 200.0.0.4/32 (seen as a 200.0.0.0/24 on R4).
> > However, this 200.0.0.0/24 is
> > being sent back to R4 after R2 goes into hold down
> > for the 200.0.0.0/24
> > route.
> >
> > I've been working on this problem for too long.
> > Please help!!
> >
> > Thanks in advance
> >
> > Albert
> >
> >
> >
> > R2 Config
> > --------------
> > !
> > version 12.1
> > service timestamps debug uptime
> > service timestamps log uptime
> > no service password-encryption
> > !
> > hostname R2
> > !
> > logging buffered 55000 debugging
> > enable password cisco
> > !
> > !
> > !
> > !
> > !
> > ip subnet-zero
> > ip tcp synwait-time 5
> > no ip domain-lookup
> > !
> > cns event-service server
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > interface Loopback0
> > ip address 200.0.0.2 255.255.255.255
> > !
> > interface Ethernet0/0
> > ip address 150.50.17.2 255.255.255.0
> > half-duplex
> > !
> > interface Serial0/0
> > no ip address
> > encapsulation frame-relay
> > no fair-queue
> > !
> > interface Serial0/0.1 point-to-point
> > ip address 150.50.24.2 255.255.255.0
> > ip summary-address eigrp 1 150.50.100.0
> > 255.255.255.0 5
> > ip summary-address eigrp 1 150.50.7.0 255.255.255.0
> > 5
> > ip summary-address eigrp 1 150.50.5.0 255.255.255.0
> > 5
> > no arp frame-relay
> > frame-relay interface-dlci 104
> > !
> > interface Serial0/0.2 multipoint
> > ip address 150.50.100.2 255.255.255.224
> > ip hello-interval eigrp 1 20
> > ip hold-time eigrp 1 60
> > frame-relay interface-dlci 105
> > frame-relay interface-dlci 106
> > !
> > interface TokenRing0/0
> > no ip address
> > shutdown
> > ring-speed 16
> > !
> > interface ATM1/0
> > no ip address
> > shutdown
> > atm vc-per-vp 4096
> > no atm ilmi-keepalive
> > !
> > router eigrp 1
> > redistribute igrp 2 metric 1000 100 255 1 1500
> > passive-interface Serial0/0.1
> > passive-interface Loopback0
> > network 150.50.0.0
> > network 200.0.0.2 0.0.0.0
> > no auto-summary
> > no eigrp log-neighbor-changes
> > !
> > router igrp 2
> > timers basic 5 15 20 30
> > redistribute eigrp 1 metric 1000 100 255 1 1500
> > route-map deny_200
> > passive-interface Ethernet0/0
> > passive-interface Serial0/0.2
> > network 150.50.0.0
> > !
> > ip classless
> > ip http server
> > !
> > access-list 1 deny 200.0.0.0 0.0.0.255
> > access-list 1 permit any
> > route-map deny_200 permit 10
> > match ip address 1
> > !
> > !
> >
> > R4 Config
> > ---------
> >
> > !
> > version 12.1
> > service timestamps debug uptime
> > service timestamps log uptime
> > no service password-encryption
> > !
> > hostname R4
> > !
> > logging buffered 55000 debugging
> > enable secret 5 $1$a4Gk$e21ITX3LOKrRnMlIeVILY1
> > enable password cisco
> > !
> > !
> > !
> > !
> > !
> > ip subnet-zero
> > ip tcp synwait-time 5
> > no ip domain-lookup
> > !
> > cns event-service server
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > interface Loopback0
> > ip address 200.0.0.4 255.255.255.255
> > !
> > interface Loopback1
> > ip address 10.1.1.4 255.255.255.0
> > !
> > interface FastEthernet0/0
> > no ip address
> > shutdown
> > duplex auto
> > speed auto
> > !
> > interface Serial0/0
> > ip address 150.50.24.4 255.255.255.0
> > encapsulation frame-relay
> > ip split-horizon
> > no fair-queue
> > frame-relay map ip 150.50.24.2 401 broadcast
> > no frame-relay inverse-arp
> > !
> > interface Serial0/1
> > no ip address
> > shutdown
> > !
> > router igrp 2
> > timers basic 5 15 20 30
> > redistribute connected
> > network 150.50.0.0
> > !
> > ip classless
> > no ip http server
> > !
> >
> >
> > R2#sh ip ro
> > Codes: C - connected, S - static, I - IGRP, R - RIP,
> > M - mobile, B - BGP
> > D - EIGRP, EX - EIGRP external, O - OSPF, IA
> > - OSPF inter area
> > N1 - OSPF NSSA external type 1, N2 - OSPF
> > NSSA external type 2
> > E1 - OSPF external type 1, E2 - OSPF external
> > type 2, E - EGP
> > i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS
> > level-2, ia - IS-IS inter
> > area
> > * - candidate default, U - per-user static
> > route, o - ODR
> > P - periodic downloaded static route
> >
> > Gateway of last resort is not set
> >
> > 200.0.0.0/32 is subnetted, 6 subnets
> > D EX 200.0.0.8 [170/297784576] via 150.50.100.5,
> > 00:03:19, Serial0/0.2
> > [170/297784576] via 150.50.100.6,
> > 00:03:19, Serial0/0.2
> > D EX 200.0.0.1 [170/2611200] via 150.50.17.1,
> > 00:03:19, Ethernet0/0
> > C 200.0.0.2 is directly connected, Loopback0
> > D EX 200.0.0.5 [170/3097600] via 150.50.100.5,
> > 00:03:19, Serial0/0.2
> > D EX 200.0.0.6 [170/3097600] via 150.50.100.6,
> > 00:03:19, Serial0/0.2
> > D EX 200.0.0.7 [170/3100160] via 150.50.100.5,
> > 00:03:19, Serial0/0.2
> > [170/3100160] via 150.50.100.6,
> > 00:03:20, Serial0/0.2
> > 173.16.0.0/22 is subnetted, 1 subnets
> > D 173.16.0.0 [90/2300416] via 150.50.100.5,
> > 00:03:20, Serial0/0.2
> > [90/2300416] via 150.50.100.6,
> > 00:03:20, Serial0/0.2
> > 150.50.0.0/16 is variably subnetted, 12
> > subnets, 3 masks
> > D 150.50.200.0/24 [90/409600] via 150.50.17.1,
> > 00:03:22, Ethernet0/0
> > D 150.50.4.0/24 [90/297886976] via
> > 150.50.100.5, 00:03:22, Serial0/0.2
> > [90/297886976] via
> > 150.50.100.6, 00:03:22, Serial0/0.2
> > D 150.50.5.0/25 [90/297758976] via
> > 150.50.100.5, 00:03:22, Serial0/0.2
> > [90/297758976] via
> > 150.50.100.6, 00:03:22, Serial0/0.2
> > D 150.50.5.0/24 is a summary, 00:03:22, Null0
> > D 150.50.7.0/25 [90/2172416] via 150.50.100.5,
> > 00:03:22, Serial0/0.2
> > [90/2172416] via 150.50.100.6,
> > 00:03:22, Serial0/0.2
> > D 150.50.7.0/24 is a summary, 00:03:22, Null0
> > D 150.50.3.0/24 [90/297886976] via
> > 150.50.100.5, 00:03:22, Serial0/0.2
> > [90/297886976] via
> > 150.50.100.6, 00:03:22, Serial0/0.2
> > C 150.50.17.0/24 is directly connected,
> > Ethernet0/0
> > D 150.50.18.0/24 [90/409600] via 150.50.17.1,
> > 00:03:22, Ethernet0/0
> > C 150.50.24.0/24 is directly connected,
> > Serial0/0.1
> > D 150.50.100.0/24 is a summary, 00:03:24,
> > Null0
> > C 150.50.100.0/27 is directly connected,
> > Serial0/0.2
> > R2#
> > 09:31:16: RT: network 200.0.0.0 is now variably
> > masked
> > 09:31:16: RT: add 200.0.0.0/24 via 150.50.24.4, igrp
> > metric [100/8976]
> > 09:31:16: RT: add 10.0.0.0/8 via 150.50.24.4, igrp
> > metric [100/8976]
> > R2#
> > 09:31:31: RT: flushed route to 200.0.0.0 via
> > 150.50.24.4 (Serial0/0.1)
> > 09:31:31: RT: no routes to 200.0.0.0, entering
> > holddown
> > R2#
> > 09:31:49: RT: garbage collecting entry for 200.0.0.0
> > R2#
> > 09:31:51: RT: network 200.0.0.0 is now variably
> > masked
> > 09:31:51: RT: add 200.0.0.0/24 via 150.50.24.4, igrp
> > metric [100/8976]
> > R2#
> > 09:32:08: RT: flushed route to 200.0.0.0 via
> > 150.50.24.4 (Serial0/0.1)
> > 09:32:08: RT: no routes to 200.0.0.0, entering
> > holddown
> > R2#
> > 09:32:25: RT: garbage collecting entry for 200.0.0.0
> > R2#
> > 09:32:26: RT: network 200.0.0.0 is now variably
> > masked
> > 09:32:26: RT: add 200.0.0.0/24 via 150.50.24.4, igrp
> > metric [100/8976]
> > R2#
> > 09:32:43: RT: flushed route to 200.0.0.0 via
> > 150.50.24.4 (Serial0/0.1)
> > 09:32:43: RT: no routes to 200.0.0.0, entering
> > holddown
> > R2#
> > 09:32:57: RT: garbage collecting entry for 200.0.0.0
> > 09:32:57: RT: network 200.0.0.0 is now variably
> > masked
> > 09:32:57: RT: add 200.0.0.0/24 via 150.50.24.4, igrp
> > metric [100/8976]
> > R2#
> > 09:33:15: RT: flushed route to 200.0.0.0 via
> > 150.50.24.4 (Serial0/0.1)
> > 09:33:15: RT: no routes to 200.0.0.0, entering
> > holddown
> > R2#
> > 09:33:29: RT: garbage collecting entry for 200.0.0.0
> > 09:33:29: RT: network 200.0.0.0 is now variably
> > masked
> > 09:33:29: RT: add 200.0.0.0/24 via 150.50.24.4, igrp
> > metric [100/8976]
> > R2#
> > 09:33:46: RT: flushed route to 200.0.0.0 via
> > 150.50.24.4 (Serial0/0.1)
> > 09:33:46: RT: no routes to 200.0.0.0, entering
> > holddown
> > R2#
> > 09:34:00: RT: garbage collecting entry for 200.0.0.0
> > R2#
> > 09:34:01: RT: network 200.0.0.0 is now variably
> > masked
> > 09:34:01: RT: add 200.0.0.0/24 via 150.50.24.4, igrp
> > metric [100/8976]
> > R2#
> > 09:34:18: RT: flushed route to 200.0.0.0 via
> > 150.50.24.4 (Serial0/0.1)
> > 09:34:18: RT: no routes to 200.0.0.0, entering
> > holddown
> > R2#
> > 09:34:33: RT: garbage collecting entry for 200.0.0.0
> > 09:34:33: RT: network 200.0.0.0 is now variably
> > masked
> > 09:34:33: RT: add 200.0.0.0/24 via 150.50.24.4, igrp
> > metric [100/8976]
> > R2#
> >
> > R4#sh ip ro
> > Codes: C - connected, S - static, I - IGRP, R - RIP,
> > M - mobile, B - BGP
> > D - EIGRP, EX - EIGRP external, O - OSPF, IA
> > - OSPF inter area
> > N1 - OSPF NSSA external type 1, N2 - OSPF
> > NSSA external type 2
> > E1 - OSPF external type 1, E2 - OSPF external
> > type 2, E - EGP
> > i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS
> > level-2, ia - IS-IS inter
> > area
> > * - candidate default, U - per-user static
> > route, o - ODR
> > P - periodic downloaded static route
> >
> > Gateway of last resort is not set
> >
> > 200.0.0.0/32 is subnetted, 1 subnets
> > C 200.0.0.4 is directly connected, Loopback0
> > I 173.16.0.0/16 [100/10986] via 150.50.24.2,
> > 00:00:02, Serial0/0
> > 10.0.0.0/24 is subnetted, 1 subnets
> > C 10.1.1.0 is directly connected, Loopback1
> > 150.50.0.0/24 is subnetted, 9 subnets
> > I 150.50.200.0 [100/9076] via 150.50.24.2,
> > 00:00:02, Serial0/0
> > I 150.50.4.0 [100/1165621] via 150.50.24.2,
> > 00:00:02, Serial0/0
> > I 150.50.5.0 [100/1165121] via 150.50.24.2,
> > 00:00:02, Serial0/0
> > I 150.50.7.0 [100/10486] via 150.50.24.2,
> > 00:00:03, Serial0/0
> > I 150.50.3.0 [100/1165621] via 150.50.24.2,
> > 00:00:03, Serial0/0
> > I 150.50.17.0 [100/8576] via 150.50.24.2,
> > 00:00:03, Serial0/0
> > I 150.50.18.0 [100/9076] via 150.50.24.2,
> > 00:00:03, Serial0/0
> >
> > R4#
> > 09:32:00: RT: network 200.0.0.0 is now variably
> > masked
> > 09:32:00: RT: add 200.0.0.0/24 via 150.50.24.2, igrp
> > metric [100/8976]
> > R4#
> > 09:32:19: RT: flushed route to 200.0.0.0 via
> > 150.50.24.2 (Serial0/0)
> > 09:32:19: RT: no routes to 200.0.0.0, entering
> > holddown
> > R4#
> > 09:32:33: RT: garbage collecting entry for 200.0.0.0
> > R4#
> > 09:32:36: RT: network 200.0.0.0 is now variably
> > masked
> > 09:32:36: RT: add 200.0.0.0/24 via 150.50.24.2, igrp
> > metric [100/8976]
> > R4#
> > 09:32:54: RT: flushed route to 200.0.0.0 via
> > 150.50.24.2 (Serial0/0)
> > 09:32:54: RT: no routes to 200.0.0.0, entering
> > holddown
> > R4#
> > 09:33:08: RT: garbage collecting entry for 200.0.0.0
> > R4#
> > 09:33:11: RT: network 200.0.0.0 is now variably
> > masked
> > 09:33:11: RT: add 200.0.0.0/24 via 150.50.24.2, igrp
> > metric [100/8976]
> > R4#
> > 09:33:30: RT: flushed route to 200.0.0.0 via
> > 150.50.24.2 (Serial0/0)
> > 09:33:30: RT: no routes to 200.0.0.0, entering
> > holddown
> > R4#
> > 09:33:43: RT: garbage collecting entry for 200.0.0.0
> > 09:33:43: RT: network 200.0.0.0 is now variably
> > masked
> > 09:33:43: RT: add 200.0.0.0/24 via 150.50.24.2, igrp
> > metric [100/8976]
> > R4#
> > 09:34:02: RT: flushed route to 200.0.0.0 via
> > 150.50.24.2 (Serial0/0)
> > 09:34:02: RT: no routes to 200.0.0.0, entering
> > holddown
> > R4#
> > 09:34:16: RT: garbage collecting entry for 200.0.0.0
> > R4#
> > 09:34:19: RT: network 200.0.0.0 is now variably
> > masked
> > 09:34:19: RT: add 200.0.0.0/24 via 150.50.24.2, igrp
> > metric [100/8976]
> > R4#
> > 09:34:35: RT: flushed route to 200.0.0.0 via
> > 150.50.24.2 (Serial0/0)
> > 09:34:35: RT: no routes to 200.0.0.0, entering
> > holddown
> > R4#
> > 09:34:53: RT: garbage collecting entry for 200.0.0.0
> > R4#
> > 09:34:57: RT: network 200.0.0.0 is now variably
> > masked
> > 09:34:57: RT: add 200.0.0.0/24 via 150.50.24.2, igrp
> > metric [100/8976]
> > R4#
> > 09:35:16: RT: flushed route to 200.0.0.0 via
> > 150.50.24.2 (Serial0/0)
> > 09:35:16: RT: no routes to 200.0.0.0, entering
> > holddown
> > R4#
> > 09:35:29: RT: garbage collecting entry for 200.0.0.0
> > R4#
> > 09:35:50: RT: network 200.0.0.0 is now variably
> > masked
> > 09:35:50: RT: add 200.0.0.0/24 via 150.50.24.2, igrp
> > metric [100/8976]
> > R4#
>
>
This archive was generated by hypermail 2.1.4 : Fri Jun 21 2002 - 06:45:12 GMT-3