Hi guys: I create two vpp instance and create two ipsec tunnel, when ping 10.0.0.1 on vpp1, I get a ping error for p2p type interface on vpp master (21.01-rc0~548-g5e6d54779). vpp0 start with vpp0.cli and vpp1 with vpp1.cli. The following is the test netowrk topology and vpp1 console output:
> > DBGvpp# show version > vpp v21.01.0-rc0~548 built by dev on localhost.localdomain at > 2020-12-14T06:00:38 > DBGvpp# sh int addr > eth0 (up): > L3 192.168.7.101/24 > ipip0 (up): > L3 10.0.0.2/24 > local0 (dn): > DBGvpp# sh int > Name Idx State MTU (L3/IP4/IP6/MPLS) Counter > Count > eth0 1 up 1500/0/0/0 rx > packets 2 > rx bytes 303 > tx packets 1 > tx bytes 42 > drops 2 > ip4 1 > ipip0 2 up 1500/0/0/0 > local0 0 down 0/0/0/0 > DBGvpp# show ipsec > all backends interface protect protect-hash sa > spd > tunnel > DBGvpp# show ipsec all > [0] sa 2147483650 (0x80000002) spi 101 (0x00000065) protocol:esp flags:[] > [1] sa 3221225474 (0xc0000002) spi 100 (0x00000064) protocol:esp > flags:[inbound ] > SPD Bindings: > ipip0 flags:[none] > output-sa: > [0] sa 2147483650 (0x80000002) spi 101 (0x00000065) protocol:esp flags:[] > input-sa: > [1] sa 3221225474 (0xc0000002) spi 100 (0x00000064) protocol:esp > flags:[inbound ] > IPSec async mode: on > DBGvpp# show ipsec sa 0 > [0] sa 2147483650 (0x80000002) spi 101 (0x00000065) protocol:esp flags:[] > locks 2 > salt 0x0 > thread-indices [encrypt:-1 decrypt:-1] > seq 0 seq-hi 0 > last-seq 0 last-seq-hi 0 window > 0000000000000000000000000000000000000000000000000000000000000000 > crypto alg aes-cbc-128 key 6541686776336961656264656f6f6579 > integrity alg sha-256-96 key > 6541686776336961656264656f6f65796541686776336961656264656f6f6579 > UDP:[src:0 dst:0] > packets 0 bytes 0 > DBGvpp# show ipsec sa 1 > [1] sa 3221225474 (0xc0000002) spi 100 (0x00000064) protocol:esp > flags:[inbound ] > locks 2 > salt 0x0 > thread-indices [encrypt:-1 decrypt:-1] > seq 0 seq-hi 0 > last-seq 0 last-seq-hi 0 window > 0000000000000000000000000000000000000000000000000000000000000000 > crypto alg aes-cbc-128 key 6541686776336961656264656f6f6579 > integrity alg sha-256-96 key > 6541686776336961656264656f6f65796541686776336961656264656f6f6579 > UDP:[src:0 dst:0] > packets 0 bytes 0 > DBGvpp# ping 192.168.7.100 > 116 bytes from 192.168.7.100: icmp_seq=1 ttl=64 time=14.4428 ms > 116 bytes from 192.168.7.100: icmp_seq=2 ttl=64 time=.2747 ms > Aborted due to a keypress. > > Statistics: 2 sent, 2 received, 0% packet loss > DBGvpp# ping 192.168.7.100 > 116 bytes from 192.168.7.100: icmp_seq=1 ttl=64 time=14.4428 ms > 116 bytes from 192.168.7.100: icmp_seq=2 ttl=64 time=.2747 ms > Aborted due to a keypress. > > Statistics: 2 sent, 2 received, 0% packet loss > DBGvpp# ping 10.0.0.1 verbose > Failed: no source address for egress interface > Failed: no source address for egress interface > Failed: no source address for egress interface > Failed: no source address for egress interface > Failed: no source address for egress interface > > Statistics: 0 sent, 0 received, 0% packet loss > DBGvpp# > I dig into ping.c and find fib_sas4_get never dealing with p2p interface case.
vpp0.cli
Description: Binary data
vpp1.cli
Description: Binary data
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