Hi Martijn, thanks for the interesting infos!
A couple of questions to the GRE tunnel topic:
– What about the MTU size? Can I define this somewhere?
– What about the DF bit? Will it be honored?
– Will the GRE tunnel source do fragmentation and the destination reassembling?
– How to configure this?
Thanks and ciao, Gerd
The MTU size is defined in the section. I’ve had it at 1400 because the underlying network was 1500 bytes.
I have not tested the DF bit yet, still something I want to do. It would be cool if it didn’t honour it and reassembled the packets through the tunnel, so we can use VXLAN over 1500 MTU networks (it would also interesting to know what performance penalty that will bring).
Can we have IPsec for the same GRE using below procedure,
If i create IPsec using same peer IP and interesting traffic with BGP peer IP , then create the GRE using API with same peer IP and tunnel IP as BGP peer IP.
Thanks & Regards, Manjunath
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