07-18-2006 07:38 AM - edited 03-03-2019 01:22 PM
hi;
I am having three 2mbps link connected to my HO to Datacentre,running eigrp,
now I want to dedicate one of the 2 mbps link only for some Ip from HO to access some server in datacentre and vice versa. and if other ip access those server will go thro other two links.
kindly help me how can i use route map or how can i achieve the same...
Thanks in advance.....
07-18-2006 08:12 AM
nilesh...
you can do it using route maps like this...
1. permit the IP address you require using the accesslist.
2. configure the route map statment with permit keyword.
3. then match the ip address of the accesslist.
4. set the next hop as your require exitinterface to the matched packet...
your configuration like this
access-list 3 permit a.b.c.d 0.0.0.255
route-map HO permit 10
match ip address 3
set ip next-hop IP address of the exit interface.
you can do it for others also in same way...
hope this will help you
rate this post if it helps
regards
Devang
07-18-2006 09:00 AM
Thanks devang for ur reply.
but here you gave ip access list 3 where you gave complete subnet as permit but I have only few Ip which i want to allow not complete subnet ...
thanks.
07-18-2006 09:05 AM
then you can go for
access-list 3 permit a.b.c.d 0.0.0.0
this accesslist will match the exact IP address...
rate this post if it helps
regards
Devang
07-18-2006 09:12 AM
devang;
If i want to match destination server also then how can i get it done.means if traffic generated from 10.10.10.10. for 20.20.20.20 will get routed to one of the next hope.
thanks..
//nilesh
07-18-2006 09:18 AM
what i understand from your explanation... you want to route traffice destain for the 20.20.20.20 should follow the your desire path... if i am right then you can do it using the static route...
ip route 20.20.20.0 255.0.0.0 IP address of the next-hope(or you can give the IP address of Exit interface or you can also give the exit interface name like FE 0)
rate this post if it helps
regards
Devang
07-18-2006 09:24 AM
Nilesh
You should be able to accomplish the objective by using Policy Based Routing which uses a route map as Devang has indicated. I believe you would want to do it in this way:
- take one of the interfaces out of EIGRP so that normal traffic will not use it.
- configure an access list that will identify the traffic:
access-list 150 permit ip host
- configure a route map to manipulate the traffic
route-map test-map permit 10
match ip address 150
set ip next-hop
- assign the route map and policy based routing on the interface on which traffic will arrive
interface
ip policy route-map test-map
You would need similar configuration on the router on both ends of the connection.
HTH
Rick
07-18-2006 09:48 AM
thanks rich;
these will help me much.
how can i take out one interface from eigrp.
thnks.
//nilesh
07-18-2006 10:29 AM
Nilesh
The EIGRP network statement allows you to specify a mask. This is an optional feature and depending on how the interfaces are addressed is probably how you would remove one interface from EIGRP.
Assuming that your three interfaces have addresses like this:
interface serial 0/0
ip address 192.168.1.1 255.255.255.252
interface serial 0/1
ip address 192.168.1.5 255.255.255.252
interface serial 1/0
ip address 192.168.1.9 255.255.255.252
you may have eigrp configured with a network statement
network 192.168.1.0
and this includes the three interfaces. What you want is this
network 192.168.1.5 0.0.0.3
network 192.168.1.9 0.0.0.3
this will include the second and third interface but not the first interface.
You would need to adapt this to whatever addressing is used on your interfaces.
HTH
Rick
07-18-2006 09:24 AM
yes you got half right, means traffic for 20.20.20.20 only if it is from 10.10.10.10 then only it will flow from desire path
thnks
//nilesh
07-18-2006 09:30 AM
Nilesh
for what you want it is needed to use an extended access list (lists numbered from 100 to 199) which can specify both source address and destination address.
HTH
Rick
07-18-2006 09:58 AM
Hi
I post here since my problem is strictly related.
I've done all the steps you described: access-list, route-map applied the route map on the interface.
The problem is that the trafic is commin over and GRE tunnel an when I do a <
All the configs done are on a 3640.
Thanks in advance,
Adrian
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