[vpp-dev] Why ip address is mandatory for gre interface?

Hi All, I got this question while trying VPP. I added a route pointing to gre interface: ip route add 1.1.1.1/32 via gre0 Before configuring ip address for gre0, the route does not work and packets are dropped with "ip4 adjacency drop". By showing the features of gre0, only ip4-drop is enabled.

[vpp-dev] Need some help on VPP

Thanks for the great support. The VPP platform grabs all available packets from RX rings to form a vector of packets. These vector of packets who will classify these packets either DPDK or VPP ?. If it is VPP how VPP will classify packet because what I am thinking for every packet VPP is decapsul