Hi Petr, i didn't disable the ping plugin in vpp. but that only happens in some vlan interfaces. in other vlan ping can work from vpp and host.
> > vpp# show interface addr > TenGigabitEthernetb5/0/3.914 (up): > L3 2401:1700:1:1::a2/126 > > > vpp# show ip neighbors TenGigabitEthernetb5/0/3.914 > Time IP Flags Ethernet > Interface > 9829.2736 fe80::c6ad:34ff:fe4d:d2a8 D c4:ad:34:4d:d2:a8 > TenGigabitEthernetb5/0/3.914 > 9871.3363 2401:1700:1:1::a1 D c4:ad:34:4d:d2:a8 > TenGigabitEthernetb5/0/3.914 > > > vpp# ping 2401:1700:1:1::a1 > 76 bytes from 2401:1700:1:1::a1: icmp_seq=1 ttl=64 time=18.8173 ms > 76 bytes from 2401:1700:1:1::a1: icmp_seq=2 ttl=64 time=11.7815 ms > 76 bytes from 2401:1700:1:1::a1: icmp_seq=3 ttl=64 time=14.7457 ms > 76 bytes from 2401:1700:1:1::a1: icmp_seq=4 ttl=64 time=11.7331 ms > 76 bytes from 2401:1700:1:1::a1: icmp_seq=5 ttl=64 time=11.7573 ms > > > najib@DPDK:~$ ip nei show dev xe1.914 > 2401:1700:1:1::a1 lladdr c4:ad:34:4d:d2:a8 router REACHABLE > > > > najib@DPDK:~$ ip addr show dev xe1.914 > 9: xe1.914@xe1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue > state UP group default qlen 1000 > link/ether 3c:ec:ef:43:b3:1b brd ff:ff:ff:ff:ff:ff > inet6 2401:1700:1:1::a2/126 scope global > valid_lft forever preferred_lft forever > inet6 fe80::3eec:efff:fe43:b31b/64 scope link > valid_lft forever preferred_lft forever > > > > najib@DPDK:~$ ping 2401:1700:1:1::a1 > PING 2401:1700:1:1::a1(2401:1700:1:1::a1) 56 data bytes > 64 bytes from 2401:1700:1:1::a1: icmp_seq=1 ttl=64 time=9.76 ms > 64 bytes from 2401:1700:1:1::a1: icmp_seq=2 ttl=64 time=9.84 ms > 64 bytes from 2401:1700:1:1::a1: icmp_seq=3 ttl=64 time=9.77 ms > 64 bytes from 2401:1700:1:1::a1: icmp_seq=4 ttl=64 time=9.80 ms > 64 bytes from 2401:1700:1:1::a1: icmp_seq=5 ttl=64 time=9.84 ms > ^C > --- 2401:1700:1:1::a1 ping statistics --- > 5 packets transmitted, 5 received, 0% packet loss, time 4008ms > rtt min/avg/max/mdev = 9.760/9.802/9.842/0.032 ms >
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