From: Timothy Chin (Tim@1c-solutions.com)
Date: Mon Mar 24 2008 - 15:27:57 ART
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#
> >
> >
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