Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations Chriss Miller on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

Beginner Help

Status
Not open for further replies.

Mstefani77

IS-IT--Management
Joined
Feb 24, 2005
Messages
1
Location
US
OK so I'm about 1/2 way through my Cisco: A Beginners Guide book and I decided to conduct a little experement. My main network is two buildings with a leased T1 line and Cisco 2500 routers on each end. Each router has a serial interface for the T1 and a Ethernet interface for the local LAN Segment. Users can access (ping) servers at the other location seamlessly.

Plant 1 LAN consists of 10.23.4 - 10.23.6 addresses on the 255.255.252.0 subnet

Plant 2 Lan consists of 10.22.4 - 10.22.6 addresses on the 255.255.252.0 subnet


I decided to setup an additional subnet at Plant 1 to try and learn how to correctly configure a subnet. I had a spare Cisco 3600 router laying around with two Ethernet ports. Below is my setup:


My test PC: 10.23.9.100
Subnet: 255.255.252.0

My Test Router 10.23.8.100
other ethernet 10.23.4.100

Real router for this location: 10.23.4.1

I got my setup to work so that I can ping addresses on my new subnet and the main subnet, they can also ping me. I can ping the main router also. But I can't ping or see anything beyond the router at the Plant I'm at. Below is the config file for my test router. I'm sure there's things I'm missing but for now I'm just trying to get the basics setup. Any help would be appreciated.

Building configuration...

Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname MyRouter
!
enable secret 5 $1$fhRL$viO1EiTEyFuTsZ88ooVpT.
enable password 7 095F5A0C1F04191B
!
ip subnet-zero
no ip domain-lookup
!
!
!
!
!
!
!
interface Ethernet0/0
description connected to EthernetLAN
ip address 10.23.8.100 255.255.252.0
no ip directed-broadcast
!
interface Ethernet0/1
description connected to EthernetLAN_1
ip address 10.23.4.100 255.255.252.0
no ip directed-broadcast
!
router rip
version 2
network 10.0.0.0
no auto-summary
!
router igrp 1
redistribute connected
network 10.0.0.0
!
ip classless
ip route 10.0.0.0 255.0.0.0 10.23.4.1
no ip http server
!
dialer-list 1 protocol ip permit
dialer-list 1 protocol ipx permit
!
line con 0
exec-timeout 0 0
password 7 111A0D0011130505
login
transport input none
line aux 0
line vty 0 4
password 7 095F5A0C1F04191B
login
!
end



 
1. Why are you running RIP *and* IGRP?

2. Why are you redistributing connected routes in IGRP?

3. For testing purposes, you might want to take out that static route. It's not really hurting anything, but it might disguise problems with your routing protocol configuration.

4. What routing protocol are your other routers using?

 
I would definitely take out the static route.

Try doing a show ip route to see what routes are being learnt and from what.

Also, running RIP and IGRP: IGRP has a lower administrative distance than RIP, so if you're learning routes from both processes the IGRP route will be preferred. IGRP will (I think) do auto-summary by default, so you might need to put in no auto-summary under the IGRP process too.
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top