Hi,
We have a few site-to-site connection (currently IPsec ESP) and the actual internet connection’s maximum MTU is 1500 bytes.
Is there any VPN/Tunelling technique to transaprentyl transmit 1600 byte MTU packets between the sites? Would be lovely to have this via/on top of IPsec, but if that is not possible, I am interested in any solution.
Background: we need to carry UDP based GTP-U packets, which contains the maximum 1500 byte user plane packets, but due to this “IP IP” encapsulation the resulted MTU will be around 1550 bytes long.
Is there any way to do that?
Of corse fragmentation will happen in this case on lower layer, that is not a problem.
Thanks in advance!