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Seperating routes to two seperate gateways

vdalehubbard
Level 1
Level 1

Greetings,

I have two DSL lines coming into a 2811 router. Due to helping out with bandwidth, I need to seperate groups of interneal IP addresses and assign them to different gateways (DSL lines). I want to ask what commands I need to use to do this. Here is my configuration on the router:

!version 12.3

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname ***

!

boot-start-marker

boot-end-marker

!

no logging buffered

!

username *** privilege 15 password 0 ***

no network-clock-participate aim 0

no network-clock-participate aim 1

no aaa new-model

ip subnet-zero

!

!

ip cef

!

!

no ftp-server write-enable

!

!

!

!

interface FastEthernet0/0

description $ETH-LAN$

ip address **.**.**.*21 255.255.255.240

ip nat outside

load-interval 30

duplex auto

speed auto

!

interface FastEthernet0/1

description $ETH-LAN$

ip address 192.168.1.2 255.255.255.0

ip nat inside

duplex auto

speed auto

!

interface FastEthernet0/0/0

no ip address

!

interface FastEthernet0/0/1

no ip address

shutdown

!

interface FastEthernet0/0/2

no ip address

shutdown

!

interface FastEthernet0/0/3

no ip address

shutdown

!

interface Vlan1

no ip address

ip nat outside

!

ip classless

ip route 0.0.0.0 0.0.0.0 **.**.**.*22

ip route 0.0.0.0 0.0.0.0 **.**.**.*09

ip http server

ip http authentication local

ip nat pool overload **.**.**.*14 **.**.**.*15 netmask 255.255.255.240

ip nat inside source list 7 interface FastEthernet0/0 overload

ip nat inside source static tcp 192.168.1.3 20 **.**.**.*10 20 extendable

ip nat inside source static tcp 192.168.1.3 21 **.**.**.*10 21 extendable

ip nat inside source static tcp 192.168.1.3 25 **.**.**.*10 25 extendable

ip nat inside source static tcp 192.168.1.3 80 **.**.**.*10 80 extendable

ip nat inside source static tcp 192.168.1.1 3389 **.**.**.*11 3389 extendable

ip nat inside source static udp 192.168.1.1 3389 **.**.**.*11 3389 extendable

ip nat inside source static tcp 192.168.1.4 1723 **.**.**.*12 1723 extendable

ip nat inside source static tcp 192.168.1.4 3389 **.**.**.*12 3389 extendable

ip nat inside source static udp 192.168.1.4 3389 **.**.**.*12 3389 extendable

ip nat inside source static tcp 192.168.1.5 3389 **.**.**.*13 3389 extendable

!

!

control-plane

!

!

line con 0

line aux 0

line vty 0 4

privilege level 15

login local

transport input telnet

!

scheduler allocate 20000 1000

!

end

I have the feeling it has to do with the ip route commands and changing them to reflect my internal ip ranges to what route I want.

1 Accepted Solution

Accepted Solutions

you cannot use "ip route" to redirect traffic based on source address.

Actually I have answered your question in Tek-tips

http://www.tek-tips.com/viewthread.cfm?qid=1051646&page=1

Use policy-based routing instead.

View solution in original post

4 Replies 4

thisisshanky
Level 11
Level 11

All you have is two default routes. I dont see any specific internal routes on your router. First you need to identify, which internal routes you want to reassign to the new gateway. If you can post that all you will need to do is,

ip route x.x.x.x y.y.y.y

Sankar Nair
UC Solutions Architect
Pacific Northwest | CDW
CCIE Collaboration #17135 Emeritus

I have these internal address:

192.168.1.1

192.168.1.3

192.168.1.4

192.168.1.5

192.168.1.29

192.168.1.32

192.168.1.38

192.168.1.62

I want those to go to the **.**.**.*22 gateway.

Everything else:

192.168.1.6 - 192.168.1.28

192.168.1.30 - 192.168.1.31

192.168.1.33 - 192.168.1.37

192.168.1.39 - 192.168.1.61

192.168.1.63 - 192.168.1.99

I want these to use the **.**.**.*09 gateway.

Right now, I have it set to route everything through both. It lags at times so I want to seperate the ones that really depend on the internet to one gateway and the rest who use it just to surf on the other gateway. Trying to help out on bandwidth.

So, will my command would be so:

ip route 192.168.1.1 255.255.255.255 **.**.**.*22

ip route 192.168.1.3 255.255.255.255 **.**.**.*22

ip route 192.168.1.4 255.255.255.255 **.**.**.*22

ip route 192.168.1.5 255.255.255.255 **.**.**.*22

ip route 192.168.1.29 255.255.255.255 **.**.**.*22

ip route 192.168.1.32 255.255.255.255 **.**.**.*22

ip route 192.168.1.38 255.255.255.255 **.**.**.*22

ip route 192.168.1.62 255.255.255.255 **.**.**.*22

To do the rest of them to the 09 gateway, can you do groups of IP's if my command above is correct?

you cannot use "ip route" to redirect traffic based on source address.

Actually I have answered your question in Tek-tips

http://www.tek-tips.com/viewthread.cfm?qid=1051646&page=1

Use policy-based routing instead.

Thanks!

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