From: Joe Soricelli (jsoricelli@xxxxxxxx)
Date: Thu Jun 17 1999 - 10:36:32 GMT-3
Scott-
R2 needs OSPF summary-address commands under router config mode to make the
/28 routes appear as /27 routes to RIP. That way RIP will then advertize
them to R3. Look closely at the "end" configs and you will see this. Also,
as has been noted on this list already, R8 needs ip ospf network
point-to-point on each of the loopback interfaces so that R2 will see them
as /28 routes and not /32 routes.
-joe
------------------------------------------------------------------
Joseph M. Soricelli, CCIE #4803, CCNP
EMAIL: jsoricelli@ccci.com
Chesapeake Computer Consultants, Inc.
8110 Gatehouse Road, Suite 101E Phone: (703) 207-0757
Falls Church, VA 22042 Fax: (703) 207-0441
FYI - About Chesapeake: We are a Cisco Certified Training and
professional services partner. We offer most of the Cisco
training courses as well as training for Fore, NetScout, and
CheckPoint-1 Firewalls. We provide network consulting services,
including design, network health, management, firewall,
and problem solving. We now have 20 CCIEs on our staff
of instructor/consultants.
-------------------------------------------------------------------
-----Original Message-----
From: Scott O'Donnell <scotto@iworksys.com>
To: Joe Soricelli <jsoricelli@fridge.ccci.com>
Cc: ccielab@groupstudy.com <ccielab@groupstudy.com>
Date: Wednesday, June 16, 1999 11:02 PM
Subject: Re: Is anyone using the Jeff Doyle Book?
>Joe,
>I've got my routers setup across ethernet connections
>R8 --------- R2 ---------- R3
>
>I've included the R2 and R3 config and sho ip routes.
>I can't see what I'm missing when I look at your configs.
>R3 doesn't learn any of the routes on R8 although R2 does see them and is
>redistributing them.
>
>R2
>Current configuration:
>!
>version 11.2
>no service udp-small-servers
>no service tcp-small-servers
>!
>hostname r2
>!
>!
>no ip domain-lookup
>!
>interface Ethernet0
> ip address 172.16.1.146 255.255.255.240
>!
>interface Ethernet1
> ip address 172.16.1.97 255.255.255.224
>!
>interface Serial0
> no ip address
>!
>interface Serial1
> no ip address
>!
>router ospf 1
> redistribute rip metric 20 subnets
> network 172.16.1.146 0.0.0.0 area 0
>!
>router rip
> redistribute ospf 1 metric 20
> passive-interface Ethernet0
> network 172.16.0.0
>!
>ip classless
>!
>!
>line con 0
>line aux 0
>line vty 0 4
> login
>!
>end
>
>r2#sho ip route
>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, * - candidate
default
> U - per-user static route, o - ODR
>
>Gateway of last resort is not set
>
> 172.16.0.0/16 is variably subnetted, 10 subnets, 4 masks
>O 172.16.1.161/32 [110/11] via 172.16.1.145, 00:04:39, Ethernet0
>C 172.16.1.144/28 is directly connected, Ethernet0
>O 172.16.1.129/32 [110/11] via 172.16.1.145, 00:04:39, Ethernet0
>R 172.16.2.128/27 [120/1] via 172.16.1.98, 00:00:24, Ethernet1
>O 172.16.1.225/32 [110/11] via 172.16.1.145, 00:04:39, Ethernet0
>O 172.16.1.193/32 [110/11] via 172.16.1.145, 00:04:39, Ethernet0
>R 172.16.2.32/27 [120/1] via 172.16.1.98, 00:00:24, Ethernet1
>O 172.16.5.0/24 [110/74] via 172.16.1.145, 00:04:39, Ethernet0
>C 172.16.1.96/27 is directly connected, Ethernet1
>R 172.16.2.64/27 [120/1] via 172.16.1.98, 00:00:24, Ethernet1
>r2#
>
>
>R3
>
>version 11.3
>no service password-encryption
>!
>hostname r3
>!
>!
>no ip domain-lookup
>!
>!
>voice-port 1/1/0
>!
>voice-port 1/1/1
>!
>!
>!
>interface Loopback0
> ip address 172.16.2.33 255.255.255.224
>!
>interface Loopback1
> ip address 172.16.2.65 255.255.255.224
>!
>interface Loopback2
> ip address 172.16.2.129 255.255.255.224
>!
>interface Ethernet0/0
> ip address 172.16.1.98 255.255.255.224
> no lat enabled
>!
>interface Serial0/0
> ip address 172.16.6.2 255.255.255.0
> shutdown
>!
>interface Serial0/1
> no ip address
> shutdown
>!
>router rip
> network 172.16.0.0
>!
>ip classless
>logging buffered 4096 debugging
>!
>!
>line con 0
>line aux 0
>line vty 0 4
> login
>!
>end
>
>r3#sho ip route
>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, * - candidate
default
> U - per-user static route, o - ODR
>
>Gateway of last resort is not set
>
> 172.16.0.0/27 is subnetted, 4 subnets
>C 172.16.2.128 is directly connected, Loopback2
>C 172.16.2.32 is directly connected, Loopback0
>C 172.16.1.96 is directly connected, Ethernet0/0
>C 172.16.2.64 is directly connected, Loopback1
>r3#
>r3#sho ip prot
>Routing Protocol is "rip"
> Sending updates every 30 seconds, next due in 16 seconds
> Invalid after 180 seconds, hold down 180, flushed after 240
> Outgoing update filter list for all interfaces is
> Incoming update filter list for all interfaces is
> Redistributing: rip
> Default version control: send version 1, receive any version
> Interface Send Recv Key-chain
> Ethernet0/0 1 1 2
> Serial0/0 1 1 2
> Loopback0 1 1 2
> Loopback1 1 1 2
> Loopback2 1 1 2
> Routing for Networks:
> 172.16.0.0
> Routing Information Sources:
> Gateway Distance Last Update
> 172.16.1.97 120 00:00:06
> Distance: (default is 120)
>
>
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