Good morning everyone
I'm new to these forums and like you fighting all day with routers and servers.
I've a problem with vpn tunnels with a lot of time and can not be resolved.
The connection is made with the central (877)
AND 3 delegations (827)
Are united through tunnels with ipsec, problems began when they change the public IP address of the plant.
central router ---- --- router ping ok delegations
central router - pinging ok ---- pc delegations
pc ping delegations --- ok - central router
Delegations router --- router ping ok ---- Central
pc central ----- ----- not ping --router pc delegation and delegation.
With the SDM of the plant conducted a test of the tunnel and gave me problems with the MTU should be 1420 to 1512 and this
My question is I've tried changing the MTU from console # ip mtu 1420
And it does not change
How can I change the MTU?
Thanks to all