Skip to main content
3 votes
Accepted

what is the purpose of GRE in UDP encapsulation if its unidirectional

The use case is passing flow hashes from the overlay network to the underlay network. Higher level protocols generally don't like to have their packets reordered, it makes stream reassembly and ...
Peter Green's user avatar
  • 13.4k
2 votes

what is the purpose of GRE in UDP encapsulation if its unidirectional

I was going through this feature of GRE called GRE-in-UDP encapsulation. The RFC says it is unidirectional and the tunnel traffic is not expected to be returned back to the UDP source port values used ...
Mike Pennington's user avatar
1 vote

Inner header and Outer header in tunnel packet

That is basically correct. As a rule of thumb, the outer packet uses public IP addresses, the inner private ones. what would be the use case for Tunnel IP address (192.168.1.1 and 192.168.1.2) ? The ...
Zac67's user avatar
  • 85.5k
1 vote

IPSec over L2GRE scenario

Is it possible to setup a GRE tunnel between Access Point and Linux Machine in Data center, such that packet first gets GRE encapsulated at access point and then gets encrypted using IPsec on the edge ...
Zac67's user avatar
  • 85.5k
1 vote

Which technologies are most relevant for mobile broadband ISP bonding?

Bonding is a term normally used for aggregating links on the link layer - that generally isn't possible with different ISPs or without explicit ISP support. What you are looking for is a load balancer ...
Zac67's user avatar
  • 85.5k

Only top scored, non community-wiki answers of a minimum length are eligible