On 2019-06-22, Henry Bonath <he...@thebonaths.com> wrote: > What about GRE(4) with a Cisco router on the other end? > > /etc/hostname.gre123: > 1.1.1.1 1.1.1.2 netmask 255.255.255.252 up > tunnel IP.OF.OB.SD IP.OF.I.OS > > Cisco IOS: > ! > interface Tunnel123 > ip address 1.1.1.2 255.255.255.252 > tunnel source GigabitEthernet0/0/1 > tunnel destination IP.OF.OB.SD > tunnel mode gre > !
That's likely to work, at the expense of reduced MTU. But is it really worth it? The main problem with ethernet interfaces and ospfd was a bug with DR elections but that has been fixed for a while now.
