Hi Everyone,
I'm looking to implement Dual ISP failover for a branch site - but am also using DMVPN back to HQ. I have looked into this link on Dual ISP Failover (https://supportforums.cisco.com/discussion/10822781/how-configure-dual-isp-failover) and have been able to test via GNS3. Works as expected. :)
My DMVPN implementation also works as expected - as we have this deployed throughout our environment. However, I'm not sure on how to implement the two together - as the DMVPN config specifies what to use as the tunnel source interface.
interface Tunnel0
ip address 192.168.1.10 255.255.255.0
no ip redirects
ip mtu 1440
ip nhrp authentication a1b2c3d4e5
ip nhrp map multicast dynamic
ip nhrp map multicast 123.123.123.123
ip nhrp map 192.168.1.1 123.123.123.123
ip nhrp network-id 1
ip nhrp nhs 192.168.1.1
qos pre-classify
tunnel source FastEthernet0/0
tunnel mode gre multipoint
tunnel key 13
tunnel path-mtu-discovery
tunnel protection ipsec profile DMVPN
end
If specify that int f0/0 is my tunnel source - and that interface goes down, how will I be able to use int fa0/1 (for example) as the redundant source?
I appreciate any help/advice/suggestions.
