If you use an Encrypte GRE tunnel, be wary of MTU sizes. You will need to drop the MTU size to accomodate both the GRE overhead and the IPSec overhead!
Troy Leliard wrote: > > The only realy advantage of using an encrypted GRE tunnel, over > a normal IPSec tunnel, is that GRE tunnelws would be able to > pass no ip traffic. You would use encrypted GRE if you had to > pass non-routeable traffic between the two site (eg > Netbios,etc, but also Routing updates). I have use encrypte > GRE tunnels in the past, to allow EIGRP to pass over the > tunnel. EIGRP updates wont pass over an IPSec tunnel (as it ia > m/cast). > > Hope this helps. > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=63339&t=63325 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
