Hi, We have two VMs running on Centos 8.4 and base server running on Centos 7.8. VM1 is running VPP(v21.06) and VM2 is a normal linux machine. VM1 is connected to VM2 on GigabitEthernet0/8/0 interface. We created a VLAN interface (with VLAN id 1400) on both the VMs and we are trying to ping from VM1's VLAN interface to VM2's VLAN interface. The setup is show in vlan_test_setup.png
Below are the VPP commands executed on VM1 for configuring VLAN interface:- lcp create GigabitEthernet0/8/0 host-if vpp1 netns dataplane create sub GigabitEthernet0/8/0 1400 lcp create GigabitEthernet0/8/0.1400 host-if vpp1.1400 netns dataplane sudo ip netns exec dataplane ip link set up dev vpp1 sudo ip netns exec dataplane ip link set up dev vpp1.1400 sudo ip netns exec dataplane ip addr add 24.24.10.101/24 dev vpp1.1400 sudo ip netns exec dataplane ip -6 addr add 2001:24:10:a111::101/64 dev vpp1.1400 When we execute ping command: - sudo ip netns exec dataplane ping 24.24.10.102 We can see ping reply packets with correct VLAN tag on the vnet interface corresponding to GigabitEthernet0/8/0. But on taking packet trace on VPP using command: - pcap dispatch trace on max 1000 file vppcapture_ping_from_router.pcapng buffer-trace dpdk-input 1000 We don't see reply packet reaching VPP. What could be the reason behind this? Thanks and Regards, Chinmaya Agarwal.
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