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How to select route for specific traffic

I have a router with 3 connections:
1. Frame relay back to coporate office
2. Frame relay to secondary office
3. Dial on demand connection for failover
I have all of my internet traffic going to the secondary office on the circuit named Int S 1.2 128.103.0.2
I have all of my exchange traffic going to my email server on circuit named Int S 1.1
When just one of these circuits fail, the roouter kicks over to the dial on demand circuit.
I would like to have the above traffic routes stay the same, but I only want the dialback circuit to kick in if BOTH of the other circuits are unavailable.
I have a drawing of my topology and the traceroute is from the 128.3.0.3 server.
Thoughts anyone?
fife-router-issue.jpg
tracert.bmp

kanlue

maybe you can try this way:
----------------
- ip route 0.0.0.0 0.0.0.0 s1.2 (your primary internet)
- ip route 0.0.0.0 0.0.0.0 s1.1 10 (your secondary internet)
- ip route 128.0.1.0 255.255.255.0 s1.2 (your exchange traffic)
- & your other routes.
----------------

hope it helps.

kdearing

Why are you using IP addresses assigned to Berkley National Laboratory, Harvard, Ford ,etc ?

redcell5

ASKER

kdearing...that's not any help....
kanlue
do you mean:
ip route 0.0.0.0 0.0.0.0 128.103.0.1
ip route 0.0.0.0 0.0.0.0 128.203.0.1 50
ip route 0.0.0.0 0.0.0.0 128.200.0.1 250
ip route 128.1.0.0 255.255.0.0 128.203.0.1 (all exchange traffic)

kanlue

yes, that's correct.
--------------
! your primary internet connection through s1.2 interface
ip route 0.0.0.0 0.0.0.0 128.103.0.1

! your backup internet connection through s1.1 interface
ip route 0.0.0.0 0.0.0.0 128.203.0.1 50

! your backup dial-up connection
ip route 0.0.0.0 0.0.0.0 128.200.0.1 250

! your exchange traffic
ip route 128.1.0.0 255.255.0.0 128.203.0.1
--------------

hope it helps.

redcell5

ASKER

kanlue....this is from the cicso config file...look at the backup delay and back up interface lines....should I remove this if I put the async in as a 3 default route? Will the async dial when traffic goes to it?

interface Serial1.1 point-to-point
description WAN CONNECTION TO NORFOLK DHEC.577331
backup delay 30 30
backup interface Async1
ip address 128.203.0.2 255.255.0.0
no ip route-cache
no ip mroute-cache
frame-relay class vcfif
frame-relay interface-dlci 100
!
interface Serial1.2 point-to-point
description WAN Connection to Chester MCI
ip address 128.103.0.2 255.255.0.0
no ip route-cache
no ip mroute-cache
frame-relay interface-dlci 225

redcell5

ASKER

Also,
Can I use the back dial for the serial PVC instead of the DLCI?

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kanlue

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redcell5

ASKER

can I move the back up dial connection to the S1 interface and have it only go into effect when the PVC goes down not the individual DLCI?

redcell5

ASKER

good point and I tested and it works....thanks

kanlue

do you mean when the interface s1.2 goes down, the dial up will pick up the internet traffic instead of directing all the internet traffic through s1.1?
from your configuration, both s1.2 and s1.1 are connecting with FR-PVCs, and each PVC has one DLCI, right?