From: Victor Cappuccio (vcappuccio@gmail.com)
Date: Mon Mar 24 2008 - 16:59:02 ART
Because the route is external "D*EX 0.0.0.0/0 [170/2565120] via
192.168.254.1, 00:00:45, Vlan1"
http://www.groupstudy.com/archives/ccielab/200307/msg01356.html
On Mon, Mar 24, 2008 at 8:35 PM, Ina&Laurean <ina.laurean@gmail.com> wrote:
> Hi Guys,
>
>
> the command distance eigrp 90 255 would actually filter all EIGRP external
> routes which will break the full connectivity.
>
> The task solution is using the "distance 255 192.168.254.1 0.0.0.0 1"
> command but in my test lab doesn't work so I though I am missing something.
>
>
>
> Thanks,
>
> Laurean
>
>
>
>
>
>
> On Mon, Mar 24, 2008 at 3:03 PM, Victor Cappuccio <vcappuccio@gmail.com>
> wrote:
>
> > That works for candidate routes in the routing table, subnets flagged
> > as a candidate default route on the hub router by virtue of the "ip
> > default-network" command.
> >
> > R1(config-router)#do show ip route
> > Codes: C - connected, S - static, 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
> > i - IS-IS, su - IS-IS summary, 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
> >
> > 1.0.0.0/24 is subnetted, 1 subnets
> > C 1.1.13.0 is directly connected, Serial1/1
> > S 172.16.0.0/16 is directly connected, Null0
> > C* 192.168.1.0/24 is directly connected, Loopback0
> >
> > R3(config-router)#
> > *Mar 24 20:01:34.091: RT: default path is now 192.168.1.0 via 1.1.13.1
> > *Mar 24 20:01:34.091: RT: new default network 192.168.1.0
> > *Mar 24 20:01:34.091: RT: NET-RED 192.168.1.0/24
> > do show ip route #
> > Codes: C - connected, S - static, 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
> > i - IS-IS, su - IS-IS summary, 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 1.1.13.1 to network 192.168.1.0
> >
> > 1.0.0.0/24 is subnetted, 1 subnets
> > C 1.1.13.0 is directly connected, Serial1/2
> > D* 192.168.1.0/24 [90/2297856] via 1.1.13.1, 00:00:13, Serial1/2
> > R3(config-router)#
> > R3(config-router)#router eigrp 100
> > R3(config-router)#no default-inf in
> > R3(config-router)#do clear ip eigrp neigh
> > R3(config-router)#
> > *Mar 24 20:02:05.595: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
> > 1.1.13.1 (Ser
> > ial1/2) is down: manually cleared
> > R3(config-router)#
> > *Mar 24 20:02:05.599: RT: delete route to 192.168.1.0 via 1.1.13.1,
> > eigrp metric
> > [90/2297856]
> > *Mar 24 20:02:05.599: RT: SET_LAST_RDB for 192.168.1.0/24
> > OLD rdb: via 1.1.13.1, Serial1/2
> >
> > *Mar 24 20:02:05.603: RT: no routes to 192.168.1.0
> > *Mar 24 20:02:05.603: RT: NET-RED 192.168.1.0/24
> > *Mar 24 20:02:05.603: RT: NET-RED 192.168.1.0/24
> > *Mar 24 20:02:05.607: RT: delete network route to 192.168.1.0
> > *Mar 24 20:02:05.607: RT: NET-RED 192.168.1.0/24
> > R3(config-router)#
> > *Mar 24 20:02:07.807: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
> > 1.1.13.1 (Ser
> > ial1/2) is up: new adjacency
> > R3(config-router)#do
> > *Mar 24 20:02:08.047: RT: SET_LAST_RDB for 192.168.1.0/24
> > NEW rdb: via 1.1.13.1
> >
> > *Mar 24 20:02:08.047: RT: add 192.168.1.0/24 via 1.1.13.1, eigrp metric
> > [90/2297
> > 856]
> > *Mar 24 20:02:08.051: RT: NET-RED 192.168.1.0/24
> > R3(config-router)#do show ip route
> > Codes: C - connected, S - static, 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
> > i - IS-IS, su - IS-IS summary, 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
> >
> > 1.0.0.0/24 is subnetted, 1 subnets
> > C 1.1.13.0 is directly connected, Serial1/2
> > D 192.168.1.0/24 [90/2297856] via 1.1.13.1, 00:00:04, Serial1/2
> > R3(config-router)#
> >
> > Try distance 90 255
> > like TIm Said
> >
> > Thanks
> > Victor.-
> >
> >
> > On Mon, Mar 24, 2008 at 7:43 PM, Ed Lui <edwlui@gmail.com> wrote:
> >
> > > Try........
> > >
> > > Under router eigrp xxx
> > > no default-information in
> > >
> > >
> > > On Mon, Mar 24, 2008 at 11:27 AM, Timothy Chin <Tim@1c-solutions.com>
> > > wrote:
> > > > Try
> > > >
> > > > distance eigrp 90 255
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
> > > Behalf Of
> > > > Ina&Laurean
> > > > Sent: Monday, March 24, 2008 2:20 PM
> > > > To: Victor Cappuccio
> > > > Cc: Cisco certification
> > > > Subject: Re: distance command EIGRP
> > > >
> > > > Hi Victor,
> > > > Yes a do have a default route on R1 this is the way that I injected
> > > the
> > > > default route into the EIGRP domain.
> > > > This route is actualy injected there as by DHCP client running on
> > > one of
> > > > the
> > > > R1 interfaces.
> > > > But just to make things clear where I want to filter the route is
> > > on R2.
> > > >
> > > > On more note I am not allowed to use the distribute-list command.
> > > >
> > > > As an alternate solution I tried to use
> > > > default-information allowed in under the router eigrp, but I
> > > couldn't
> > > > make
> > > > this one work either.
> > > >
> > > > As per description on the command references it should work but I
> > > wasn't
> > > > able to filter the default route this way.
> > > >
> > > >
> > > > Thanks,
> > > > Laurean
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > On Mon, Mar 24, 2008 at 1:55 PM, Victor Cappuccio <
> > > vcappuccio@gmail.com>
> > > > wrote:
> > > >
> > > > > Ina&Laurean,
> > > > >
> > > > > can you show us the output of the show run | in ip route
> > > > > It seems to me that you have something like "ip route 0.0.0.0
> > > 0.0.0.0
> > > > > 10.1.9.254 254" in your R1 configuration
> > > > >
> > > > > Can you please check this out
> > > > >
> > > > > Thanks,
> > > > > Victor Cappuccio
> > > > > www.vcappuccio.wordpress.com
> > > > >
> > > > > ---------
> > > > >
> > > > > R1(config-router)#do show ip route 0.0.0.0
> > > > > Routing entry for 0.0.0.0/0, supernet
> > > > > Known via "eigrp 100", distance 170, metric 2169856, candidate
> > > > default
> > > > > path, type external
> > > > > Redistributing via eigrp 100
> > > > > Last update from 1.1.13.3 on Serial1/1, 00:00:04 ago
> > > > > Routing Descriptor Blocks:
> > > > > * 1.1.13.3, from 1.1.13.3, 00:00:04 ago, via Serial1/1
> > > > > Route metric is 2169856, traffic share count is 1
> > > > > Total delay is 20000 microseconds, minimum bandwidth is
> > > 1544
> > > > Kbit
> > > > > Reliability 255/255, minimum MTU 1500 bytes
> > > > > Loading 1/255, Hops 1
> > > > >
> > > > > R1(config-router)#do show ip route eigrp
> > > > > 3.0.0.0/32 is subnetted, 1 subnets
> > > > > D 3.3.3.3 [90/2297856] via 1.1.13.3, 00:00:04, Serial1/1
> > > > > D*EX 0.0.0.0/0 [170/2169856] via 1.1.13.3, 00:01:28, Serial1/1
> > > > >
> > > > >
> > > > > R1(config-router)#do show ip route eigrp
> > > > > 3.0.0.0/32 is subnetted, 1 subnets
> > > > > D 3.3.3.3 [90/2297856] via 1.1.13.3, 00:00:04, Serial1/1
> > > > > D*EX 0.0.0.0/0 [170/2169856] via 1.1.13.3, 00:01:28, Serial1/1
> > > > > R1(config-router)#exit
> > > > > R1(config)#ip prefix-list X deny 0.0.0.0/0
> > > > > R1(config)#ip prefix-list X permit 0.0.0.0/0 le 32
> > > > > R1(config)#router eigrp 100
> > > > > R1(config-router)#distribute-list prefix X in S1/1
> > > > > R1(config-router)#do clear ip eigrp neigh
> > > > > R1(config-router)#
> > > > > *Mar 24 18:52:59.555: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100:
> > > Neighbor
> > > > > 1.1.13.3 (Ser
> > > > > ial1/1) is down: manually cleared
> > > > > R1(config-router)#
> > > > > *Mar 24 18:53:00.587: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100:
> > > Neighbor
> > > > > 1.1.13.3 (Ser
> > > > > ial1/1) is up: new adjacency
> > > > > R1(config-router)#do show ip route
> > > > > *Mar 24 18:53:02.271: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100:
> > > Neighbor
> > > > > 1.1.13.3 (Ser
> > > > > ial1/1) is resync: route configuration changed
> > > > > R1(config-router)#do show ip route eigrp
> > > > > 3.0.0.0/32 is subnetted, 1 subnets
> > > > > D 3.3.3.3 [90/2297856] via 1.1.13.3, 00:00:04, Serial1/1
> > > > > R1(config-router)#
> > > > >
> > > > >
> > > > >
> > > > > On Mon, Mar 24, 2008 at 6:25 PM, Ina&Laurean <
> > > ina.laurean@gmail.com>
> > > > > wrote:
> > > > >
> > > > > > Hi Group,
> > > > > >
> > > > > > I am working on a lab and one of the requirements is to filter
> > > a
> > > > default
> > > > > > route coming from a specific EIGRP neighbor, I tried different
> > > > solutions
> > > > > > but
> > > > > > none of them work seem to work, the solution is using the
> > > distance
> > > > > > command
> > > > > > with neighbor EIGRP address and an access list.
> > > > > >
> > > > > > I've created a Lab with just two routers to test this and as
> > > you can
> > > > see
> > > > > > the
> > > > > > default route is still into the routing table even though under
> > > the
> > > > ip
> > > > > > protocols shows that the distance is 255.
> > > > > >
> > > > > >
> > > > > >
> > > > > > Thanks,
> > > > > >
> > > > > > Laurean
> > > > > >
> > > > > >
> > > > > >
> > > > > > Bellow my configurations:
> > > > > >
> > > > > >
> > > > > >
> > > > > > R1-LAB#sh run | s eigrp
> > > > > >
> > > > > > router eigrp 236
> > > > > >
> > > > > > redistribute static metric 1000 10 255 1 1500
> > > > > >
> > > > > > network 192.168.253.0
> > > > > >
> > > > > > network 192.168.254.0
> > > > > >
> > > > > > no auto-summary
> > > > > >
> > > > > > deny eigrp any any
> > > > > >
> > > > > > R1-LAB#
> > > > > >
> > > > > >
> > > > > >
> > > > > > R1-LAB#sh ip route
> > > > > >
> > > > > > Codes: C - connected, S - static, 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
> > > > > >
> > > > > > i - IS-IS, su - IS-IS summary, 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 10.1.9.254 to network 0.0.0.0
> > > > > >
> > > > > > 10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
> > > > > >
> > > > > > C 10.1.9.0/24 is directly connected, GigabitEthernet0/0
> > > > > >
> > > > > > S 10.1.6.5/32 [254/0] via 10.1.9.254, GigabitEthernet0/0
> > > > > >
> > > > > > C 192.168.254.0/24 is directly connected, Vlan1
> > > > > >
> > > > > > C 192.168.253.0/24 is directly connected, Loopback0
> > > > > >
> > > > > > D 192.168.252.0/24 [90/156160] via 192.168.254.2, 00:11:18,
> > > Vlan1
> > > > > >
> > > > > > S* 0.0.0.0/0 [254/0] via 10.1.9.254
> > > > > >
> > > > > > R1-LAB#
> > > > > >
> > > > > >
> > > > > >
> > > > > > R2-LAB#sh run | s eigrp
> > > > > >
> > > > > > router eigrp 236
> > > > > >
> > > > > > network 192.168.252.0
> > > > > >
> > > > > > network 192.168.254.0
> > > > > >
> > > > > > distance 255 192.168.254.1 0.0.0.0 1
> > > > > >
> > > > > > no auto-summary
> > > > > >
> > > > > >
> > > > > >
> > > > > > R2-LAB#sh run | s access-
> > > > > >
> > > > > > access-list 1 permit 0.0.0.0
> > > > > >
> > > > > >
> > > > > >
> > > > > > R2-LAB#sh ip route
> > > > > >
> > > > > > Codes: C - connected, S - static, 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
> > > > > >
> > > > > > i - IS-IS, su - IS-IS summary, 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 192.168.254.1 to network 0.0.0.0
> > > > > >
> > > > > >
> > > > > >
> > > > > > 10.0.0.0/32 is subnetted, 1 subnets
> > > > > >
> > > > > > D EX 10.1.6.5 [170/2565120] via 192.168.254.1, 00:00:45,
> > > Vlan1
> > > > > >
> > > > > > C 192.168.254.0/24 is directly connected, Vlan1
> > > > > >
> > > > > > D 192.168.253.0/24 [90/156160] via 192.168.254.1, 00:00:45,
> > > Vlan1
> > > > > >
> > > > > > C 192.168.252.0/24 is directly connected, Loopback0
> > > > > >
> > > > > > D*EX 0.0.0.0/0 [170/2565120] via 192.168.254.1, 00:00:45, Vlan1
> > > > > >
> > > > > > R2-LAB#
> > > > > >
> > > > > >
> > > > > >
> > > > > > R2-LAB#sh ip protocols
> > > > > >
> > > > > > Routing Protocol is "eigrp 236"
> > > > > >
> > > > > > Outgoing update filter list for all interfaces is not set
> > > > > >
> > > > > > Incoming update filter list for all interfaces is not set
> > > > > >
> > > > > > Default networks flagged in outgoing updates
> > > > > >
> > > > > > Default networks accepted from incoming updates
> > > > > >
> > > > > > EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
> > > > > >
> > > > > > EIGRP maximum hopcount 100
> > > > > >
> > > > > > EIGRP maximum metric variance 1
> > > > > >
> > > > > > Redistributing: eigrp 236
> > > > > >
> > > > > > EIGRP NSF-aware route hold timer is 240s
> > > > > >
> > > > > > Automatic network summarization is not in effect
> > > > > >
> > > > > > Maximum path: 4
> > > > > >
> > > > > > Routing for Networks:
> > > > > >
> > > > > > 192.168.252.0
> > > > > >
> > > > > > 192.168.254.0
> > > > > >
> > > > > > Routing Information Sources:
> > > > > >
> > > > > > Gateway Distance Last Update
> > > > > >
> > > > > > 192.168.254.1 255 00:01:03
> > > > > >
> > > > > > Distance: internal 90 external 170
> > > > > >
> > > > > > Address Wild mask Distance List
> > > > > >
> > > > > > 192.168.254.1 0.0.0.0 255 1
> > > > > >
> > > > > >
> > > > > >
> > > > > > R2-LAB#
> > > > > >
> > > > > >
> > > >
> > > _______________________________________________________________________
> > > > > > Subscription information may be found at:
> > > > > > http://www.groupstudy.com/list/CCIELab.html
> > > > > >
> > > > >
> > > > >
> > > > >
> > > > > --
> > > >
> > > >
> > > _______________________________________________________________________
> > > > Subscription information may be found at:
> > > > http://www.groupstudy.com/list/CCIELab.html
> > > >
> > > >
> > > _______________________________________________________________________
> > > > Subscription information may be found at:
> > > > http://www.groupstudy.com/list/CCIELab.html
> > > >
> > >
> >
> >
> >
> > --
> > Victor Cappuccio
> > www.vcappuccio.wordpress.com
> >
>
>
-- Victor Cappuccio www.vcappuccio.wordpress.com
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