I am using cisco 3845 at Head office and 2801 at Branch with two WAN link over OSPF.
my configuration as follows.
interface Tunnel 1 ip address 172.24.26.1 255.255.255.252 ip ospf cost 500 tunnel source 172.16.1.1 tunnel destination 172.16.2.1 ! interface Tunnel2 ip address 172.25.26.1 255.255.255.252 ip ospf cost 1000 tunnel source 10.0.1.1 tunnel destination 10.0.2.1
router ospf 50
log-adjacency-changes area 0 stub network 172.24.26.0 0.0.0.3 area 0 network 172.25.26.0 0.0.0.3 area 0 network 192.168.1.0 0.0.0.255 area 0 ( Local Network)
interface Tunnel 1 ip address 172.24.26.2 255.255.255.252 ip ospf cost 500 tunnel source 172.16.2.1 tunnel destination 172.16.1.1 ! interface Tunnel2 ip address 172.25.26.2 255.255.255.252 ip ospf cost 1000 tunnel source 10.0.2.1 tunnel destination 10.0.1.1
router ospf 50
log-adjacency-changes area 1 stub network 172.24.26.0 0.0.0.3 area 1 (Tunnel 1) network 172.25.26.0 0.0.0.3 area 1(Tunnel 1) network 192.168.26.0 0.0.0.255 area 1 ( Local Network )
According to my configuration HO network 192.168.1.0/24 doing communication with 192.168.26.0/24 ( Branch Network) through tunnel 1 and its working fine. when tunnel 1 goes down tunnel 2 up automatically.
Now my requirement when branch want to go Ho for some IP and port like 80 it goes to tunnel 2. all traffic will go tunnel 1 except some ip or port.
if tunnel 2 goes down it automatically shift to tunnel 1.
my purpose use of both tunnel but not load balancing.
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You could probably accomplish what you want with PBR. Dealing with link failures, can sometimes be a bit complex, especially using GRE tunnels, which by default, are always up.
Another "silly" is to break the inside LAN to smaller pieces and use static routes along with track option. Or (extreme option) make BGP neighborship betwwen the router and advertise aggregates from both tunnels and more specific routes from each one as you wish.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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