Handle L3 devices

[jschwinger233]

$ nscontainer kind-worker2 skbdump -i any -o protocol 'dst host 10.244.3.41 and dst port 80 and tcp[tcpflags] = tcp-syn'
start tracing
1 ffff97a28a9a7ce8 in@19(lxced937db9732e) protocol=8 Ethernet(c2:d0:41:b5:eb:6c>4a:93:4d:b0:f9:fd) | IPv4(10.244.2.172>10.244.3.41) | TCP(37978>80,flags=S,seq=2231,ack=0)
2 ffff97a28a9a7ce8 out@5(cilium_vxlan) protocol=8 Ethernet(c2:d0:41:b5:eb:6c>4a:93:4d:b0:f9:fd) | IPv4(10.244.2.172>10.244.3.41) | TCP(37978>80,flags=S,seq=2231,ack=0)
3 ffff97a28a9a7ce8 out@72(eth0) protocol=8 Ethernet(02:42:ac:12:00:05>02:42:ac:12:00:04) | IPv4(172.18.0.5>172.18.0.4) | UDP(42584>8472) | Payload(82 bytes)
4 ffff97a28a9a7ce8 out@2(cilium_wg0) protocol=8 Ethernet(00:00:00:00:00:00>00:00:00:00:00:00) | IPv4(172.18.0.5>172.18.0.4) | UDP(42584>8472) | Payload(82 bytes)
5 ffff97a28a9a7ce8 out@72(eth0) protocol=8 Ethernet(02:42:ac:12:00:05>02:42:ac:12:00:04) | IPv4(172.18.0.5>172.18.0.4) | UDP(51871>51871) | Payload(144 bytes)