[Edited Message Follows] *Ping/ICMP communication between two peers is not working when using ipv6 link local address* The VPP version is 19.01.2 and vppsb router plugin used: Platform is Linux-Debian. *1st Device:*
> > Linux: > root@ewn:/# ip addr show vpp2 > 10: vpp2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state > UP group default qlen 1000 > link/ether 00:08:a2:09:5a:fe brd ff:ff:ff:ff:ff:ff > inet 11.11.11.11/24 brd 11.11.11.255 scope global vpp2 > valid_lft forever preferred_lft forever > inet6 fe80::208:a2ff:fe09:5afe/64 scope link > valid_lft forever preferred_lft forever > root@ewn:/# > > VPP: > vpp# show ip6 interface GigabitEthernet0/14/2 > GigabitEthernet0/14/2 is admin up > Link-local address(es): > fe80::208:a2ff:fe09:5afe > Joined group address(es): > ff02::1 > ff02::2 > ff02::16 > Advertised Prefixes: > MTU is 1790 > ICMP error messages are unlimited > ICMP redirects are disabled > ICMP unreachables are not sent > ND DAD is disabled > ND advertised reachable time is 0 > ND advertised retransmit interval is 0 (msec) > ND router advertisements are sent every 200 seconds (min interval is 150) > ND router advertisements live for 600 seconds > Hosts don't use stateless autoconfig for addresses > ND router advertisements sent 8 > ND router solicitations received 0 > ND router solicitations dropped 0 > vpp# > *2nd Device:* > > Linux: > root@rad:/etc/vpp# ip addr show vpp0 > 10: vpp0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state > UP group default qlen 1000 > link/ether 00:08:a2:0c:bb:42 brd ff:ff:ff:ff:ff:ff > inet 11.11.11.1/24 brd 11.11.11.255 scope global vpp0 > valid_lft forever preferred_lft forever > inet6 fe80::208:a2ff:fe0c:bb42/64 scope link > valid_lft forever preferred_lft forever > root@rad:/etc/vpp# > vpp# show ip6 interface GigabitEthernet0/14/0 > GigabitEthernet0/14/0 is admin up > Link-local address(es): > fe80::208:a2ff:fe0c:bb42 > Joined group address(es): > ff02::1 > ff02::2 > ff02::16 > Advertised Prefixes: > MTU is 1790 > ICMP error messages are unlimited > ICMP redirects are disabled > ICMP unreachables are not sent > ND DAD is disabled > ND advertised reachable time is 0 > ND advertised retransmit interval is 0 (msec) > ND router advertisements are sent every 200 seconds (min interval is 150) > ND router advertisements live for 600 seconds > Hosts don't use stateless autoconfig for addresses > ND router advertisements sent 8 > ND router solicitations received 0 > ND router solicitations dropped 0 > vpp# > > /* If ping from second device to 1st device(and vice versa) from Linux it is not working. */ root@ewn:/etc/vpp# ping fe80::208:a2ff:fe09:5afe%vpp0 PING fe80::208:a2ff:fe09:5afe%vpp0(fe80::208:a2ff:fe09:5afe%vpp0) 56 data bytes --- fe80::208:a2ff:fe09:5afe%vpp0 ping statistics --- 11 packets transmitted, 0 received, 100% packet loss, time 10225ms ^Croot@ewn:/etc/vpp# Please advise.
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