Need tips on configuring a point to point T1 on a 2611 router

[bbylsma]

I have 2 Cisco 2611 routers that I am trying to connect over a full point to point T1. I would like everything behind Router B to travel to Router A and out to the internet and also be able to talk with everything behind Router A. Router A's ethernet connects to a Firebox with an IP of 192.100.100.9. Router A has 2 T1DSU/CSU modules, one is connected to Ameritech for Internet. The other will be used to connect to the other router. I would like to use HDLC to connect the two. Also is ther somehting beterr than RIP routing? This is my current config, can someone help me find the problems?

Router A:

interface Ethernet0/0
ip address 68.76.31.1 255.255.255.0
no ip proxy-arp
no ip mroute-cache
full-duplex
no mop enabled

interface Serial0/0
ip address 67.39.115.190 255.255.255.252
no ip redirects
no ip unreachables
encapsulation frame-relay IETF
no ip mroute-cache
no fair-queue
frame-relay map ip 67.39.115.189 563 IETF
frame-relay interface-dlci 563
frame-relay lmi-type ansi

interface Serial0/1
description HDLC connection to Brookfield
ip address 1.1.1.1 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
no ip mroute-cache
ntp disable

router rip
network 67.0.0.0
network 68.0.0.0

ip classless
ip route 0.0.0.0 0.0.0.0 67.39.115.189
ip route 68.76.31.0 255.255.255.0 Ethernet0/0
no ip http server

no cdp run

Router B:

interface Ethernet0/0
ip address 192.100.100.37 255.255.255.0
no ip proxy-arp
no ip mroute-cache
full-duplex
no mop enabled

interface Serial0/0
description HDLC connection to Grand Rapids
ip address 1.1.1.2 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
no ip mroute-cache
ntp disable

router rip
network 1.0.0.0
network 192.0.0.0

ip classless
ip route 0.0.0.0 0.0.0.0 1.1.1.1
ip route 192.100.100.0 255.255.255.0 Ethernet0/0

no ip http server

 

[lgarner]

Just set routerB's default gateway to the corresponding serial address on routerA:

ip route 0.0.0.0 0.0.0.0 1.1.1.1

You'll also need to enable NAT on routerA to handle routerB's private addresses. This would be handled by the Firebox for devices at site A. Getting B to talk to A will depend on the Firebox. You'll need to configure some type of static NAT and access control to allow that traffic in.

EIGRP is better than RIP if you're all Cisco. OSPF is, also, and is standard so the Firebox might understand it.

 

[bbylsma]

Ok, thanks a lot!! To enable EIGRP is that the command i would use and then add the same networks? Any tips on the NAT also? I do NAT on the Firebox but have never on the router......

 

[bbylsma]

I made a T1 crossover and have the routers connected and I can ping from Router B to all interfaces on Router A. I can't however ping anything on the web, dns does resolve the address. I changed my IP scheme and now use: Router A S0/1 = 192.168.10.5, E0/0 = 68.76.x.x Router B S0/0 = 192.168.10.6 E0/0 192.100.101.1

What routes do I need to add to make the machines behind Router B E0/0 to talk to machines behind Router A E0/0 and also get out to the internet?

Here are my routes:

Router A:

ip route 0.0.0.0 0.0.0.0 67.39.115.189
ip route 68.76.31.0 255.255.255.0 Ethernet0/0
ip route 192.100.101.0 255.255.255.0 192.168.10.6

Router B:

ip route 0.0.0.0 0.0.0.0 192.168.10.5

 

[plshlpme]

if your going to use a routing protocol you don't need the static routes...

i modified your config to use ospf... your mention above that router A connects to the firebox? but to me its router B that connects to it???


anyways here is the config that should work and should share the networks properly for both routers.

Router A

interface Ethernet0/0
ip address 68.76.31.1 255.255.255.0
no ip proxy-arp
no ip mroute-cache
full-duplex
no mop enabled

interface Serial0/0
ip address 67.39.115.190 255.255.255.252
no ip redirects
no ip unreachables
encapsulation frame-relay IETF
no ip mroute-cache
no fair-queue
frame-relay map ip 67.39.115.189 563 IETF
frame-relay interface-dlci 563
frame-relay lmi-type ansi

interface Serial0/1
description HDLC connection to Brookfield
ip address 1.1.1.1 255.255.255.252
no ip redirects
no ip unreachables
no ip proxy-arp
no ip mroute-cache
ntp disable

router ospf 10
network 68.76.31.0 0.0.0.255 area 0
network 1.1.1.0 0.0.0.3 area 0

ip classless
ip route 0.0.0.0 0.0.0.0 67.39.115.189
no ip http server

no cdp run



Router B:

interface Ethernet0/0
ip address 192.100.100.37 255.255.255.0
no ip proxy-arp
no ip mroute-cache
full-duplex
no mop enabled

interface Serial0/0
description HDLC connection to Grand Rapids
ip address 1.1.1.2 255.255.255.252
no ip redirects
no ip unreachables
no ip proxy-arp
no ip mroute-cache
ntp disable

router ospf 10
network 1.1.1.0 0.0.0.3 area 0
network 192.100.100.0 0.0.0.255 area 0

ip classless
ip route 0.0.0.0 0.0.0.0 1.1.1.1

no ip http server
no cdp run