2 (Non-related) ISP's w/ 1 router 1

[mrhyd3]

Config ideas on connecting a cablemodem ISP and a T1 ISP into a 2621? The T1 ISP gave us 16 IP addresses and we have 1 IP from the cable ISP. How would I implement this into the config? Obviously BGP is out of the question. Ideas, or caveats?

 

[UNIX72]

Are they going to be use simultaneously(sp) or one for redundancy(backup). Load sharing with the right routing protocol could work(EIGRP, OPSF) Also policy routing.

 

[sobak]

Let me know what you want to do... I am doing the same thing running a T-1 and Xdsl through a 2611, routing protocol EIGRP with two VPN's back to my Dallas office. One of the VPN's is being used as a backup for my primary.

david e
*end users are just like computers, some you can work with...others just need a simple reBOOTing to fix their problems.*

 

[mrhyd3]

Well, I was asked to make the cablemodem ISP higher priority from with in (surfing, ftp) and our T1 will be for users connecting from the outside to our LAN. I thought about using weighted static routes but the problem I may run into are packets from the T1 being routed back out the cablemodem? We're a Citrix shop the cablemodem just isn't fast enough for our external users. I guess I can use route-map but not sure how to implement it.

 

[mrhyd3]

So to answer your queston, which I left out in my last reply was "yes" I want to use both concurrently...I will DNS round-robin since I can't run BGP or OSPF...

 

[BOJIKA]

You can use nat and route-map...

 

[wybnormal]

Can we spell "policy routing" ? This precisely what policy routing is designed to do. You use access-lists to provide the filering and then you route certain protocols etc to certain ports.

Understanding Policy Routing

http://www.cisco.com/warp/public/105/36.html

MikeS
"Diplomacy; the art of saying 'nice doggie' till you can find a rock" Wynn Catlin

 

[BOJIKA]

http://www.cisco.com/warp/public/105/nat_routemap.html

 

[mrhyd3]

Thanks for all the direction. I believe I have it worked out now. This is what I have come up with. I am just waiting for a night to move our cablemodem over to the router. The T1 is in place and working fine.
----------
!
interface Serial0/0
Description T1 ISP
ip address xxx.xxx.26.58 255.255.255.252
ip access-group inbound-acl in
no ip directed-broadcast
ip nat outside
no ip mroute-cache
no fair-queue
!
interface FastEthernet0/0
Description Internal
ip address 172.16.100.1 255.255.255.0
no ip directed-broadcast
ip nat inside
speed 100
half-duplex
!
interface FastEthernet0/1
Description Cablemodem ISP
ip address xxx.xxx.202.2 255.255.255.0
no ip directed-broadcast
ip nat outside
shutdown
speed 10
half-duplex
!
interface Loopback0
ip address xxx.xxx.122.1 255.255.255.240
ip access-group inbound-acl in
no ip directed-broadcast
ip nat outside
!
ip nat pool cablewireless xxx.xxx.122.1 xxx.xxx.122.16 prefix-length 24
ip nat pool timewarner xxx.xxx.202.2 xxx.xxx.202.2 prefix-length 24
prefix-length 24
!
ip nat inside source static 172.16.100.5 xxx.xxx.122.5
ip nat inside source static 172.16.100.2 xxx.xxx.122.2
ip classless
ip route 0.0.0.0 0.0.0.0 xxx.xxx.26.57
!
access-list 1 permit 172.16.100.0 0.0.0.255
!
route-map timewarner permit 10
match ip address 1
match interface FastEthernet0/1
!
route-map cablewireless permit 10
match ip address 1
match interface Loopback0

 

[wybnormal]

Excellent

MikeS
"Diplomacy; the art of saying 'nice doggie' till you can find a rock" Wynn Catlin