cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
205
Views
0
Helpful
1
Replies

Policy Based Routing:

nickolaskoiser
Level 1
Level 1

Hi,I need your assistance,

I support a kind of network that has two separate links to each site-one of the links is known to be more reliable than the other,

There is some particular kind of traffic that is more critical than all other traffic.It comes from a particular source address from the remote sites,normally a machine with ip address 172.31.x.23/24,it would head for example to the HQ with ip address 172.31.124.61/30 and 172.31.124.67/30,these ips represent the diffrent links.Now i want the traffic to use the 172.31.124.61/30 as the preffered path,Am running OSPF and have put OSPF cost on each of the links and it works okay.

My problem is just getting traffic from a paricular ip to get to particular destination IP.In this case 172.31.x.23/24 to use the IP 172.31.124.61/30.

I really hope i have put my point out in a clear way.I am willing to explain more if not clear.

Please help.

1 Reply 1

royalblues
Level 10
Level 10

manipulating ospf cost would trigger routing of all traffic via one preferred link.

You can use PBR on the inside interface and force the traffic (matched via the policy u define) onto a particular link.

access-list 101 permit ip

route-map PBR permit 10

match ip address 101

set ip next-hop

interface

ip policy route-map PBR

HTH

Narayan

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community:

Innovations in Cisco Full Stack Observability - A new webinar from Cisco