point 2 point

[jdl508]

OK here is the senerio I have 3 routers.
1 2501 and 2 1700's
the 1700's are each at different locations and each are conected via T1 to the 2501
i have no prob with connectivity accept occasional with an exchange server which goes through the 2501 to the 1700
it seems to come up and down as it pleases herre part of the config

I noticed on int s1 there is no ip address defined, why is this? (I did not set up these routers, as you can see)
I would think you need that to have a static route it looks like RIP or EIGRP could be falling off occasionally???
=====================start config
ip subnet-zero
no ip domain-lookup
!
ipx routing 000b.000b.000b
!
!
!
interface Ethernet0
ip address 192.168.x.x 255.255.255.0
ip helper-address 192.168.x.x
ip directed-broadcast
media-type 10BaseT
ipx network B encapsulation SAP
!
interface Serial0
no ip address
no fair-queue
!
interface Serial1
ip address 192.168.x.x 255.255.255.252
ip directed-broadcast
encapsulation ppp
ipx network BBB
!
router eigrp 100
network 192.168.x.0
network 192.168.y.0
no auto-summary
!
router rip
network 192.168.y.0
!
ip classless
no ip http server
!
!
!
ipx router eigrp 100
network BBB
network B
!
!
ipx router rip
no network BBB
=============================== end config

I really appreciate any help as I am in trouble here with this one.
thanks
jonathan

 

[svermill]

You should have a layer three address (IP or IPX in your case) configured on the interface or be using ip unnumbered.

 

[jdl508]

Im sorry I meant shouldnt I have a layer3 address on serial0
any ideas why the mail server would become inaccesible at tinmes over the wan link?
thank you again
jonathan

 

[jeter]

Add a ip helper address on the ethernet ports of the remote routers, the ip of the server. Jeter@LasVegas.com
Fisher CCNA
Sprint-Data

 

[svermill]

Yes, on S0 you should have a layer 3 address or be configured for IP unnumbered (which "borrows" an address from a loopback interface or a LAN interface. That IP becomes the next-hop address in downstream routing tables. So I wonder how it ever works at all.

 

[saleen351]

if both of the 1700 router conect directly to your 2500 and nowhere else, its basically a stub-network. put static routes on both the 1700.
ip route 0.0.0.0 0.0.0.0 x.x.x.x
whre x.x.x.x is the ip address of the interface to which the 1700 connect to on the 2500 router. this way, the 2500 will pick up the static route and propgate to any other routers on your network.