Hi, how do i tell the cisco 6509 to use the leased line as primary line and use secondary WAN via MPLS when an email traffic from exchange is seen?
I got two 6509 on two sites and i placed a leased line in between, which is where the traffic should run for email only. first site is using static IP route the second site is using eigrp. the catch is there is an ip conflict if i open the whole network that is why i should only pass email traffic and block all the rest as it should use the existing WAN (a NAT is being used elsewhere to prevent the ip conflict). Also, would it be possible to tell the router or switch to use the WAN as secondary link in case the leased line fails?