--- ::11 ping statistics --- 5 packets transmitted, 3 packets received, 40% packet loss round-trip min/avg/max = 0.139/1.857/5.293 ms
- ip netns exec at_ns0 ping -c 3 -w 10 -q 10.1.1.200
PING 10.1.1.200 (10.1.1.200): 56 data bytes
--- 10.1.1.200 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 0.214/0.256/0.305 ms
- ping -c 3 -w 10 -q 10.1.1.100
PING 10.1.1.100 (10.1.1.100): 56 data bytes
--- 10.1.1.100 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 0.210/0.211/0.213 ms
- check_err 0
- '[' 0 -eq 0 ']'
- ret=0
So looks like the ipv4 over ipv6 gre passes.
- ip netns exec at_ns0 ping6 -c 3 -w 10 -q fc80::200
PING fc80::200 (fc80::200): 56 data bytes
--- fc80::200 ping statistics --- 10 packets transmitted, 0 packets received, 100% packet loss
` but the ipv6 over ipv6 gre fails. Do you have any firewall rules that block this traffic? or if possible, the packet might get dropped at function ip6gre_xmit_ipv6 can you print the return value of this function?
- check_err 1
- '[' 0 -eq 0 ']'
- ret=1
- ip -s link show ip6gretap11
19: ip6gretap11@NONE: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1434 qdisc pfifo_fast state UNKNOWN mode DEFAULT group default qlen 1000 link/ether de:d2:0c:53:80:8c brd ff:ff:ff:ff:ff:ff RX: bytes packets errors dropped overrun mcast 2096 25 0 0 0 0 TX: bytes packets errors dropped carrier collsns 5324 36 5 5 0 0
So there are 5 errors at TX.
and today when I tried it on next-20180620 I saw 8 errors at TX.
I couldn't reproduce in my local machine using 4.17-rc6. How do I checkin the "next-20180613" source code?
You can find the source code here [1], and I would look in the latest tag that I said that I was able to reproduce it on above.
Cheers, Anders [1] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/
Hi Anders,
I'm still not able to reproduce the issue on next-20180620. Below is my test.
Testing IP6GRETAP tunnel... PING ::11(::11) 56 data bytes
--- ::11 ping statistics --- 5 packets transmitted, 3 received, 40% packet loss, time 4048ms rtt min/avg/max/mdev = 0.040/32.118/96.235/45.337 ms PING 10.1.1.200 (10.1.1.200) 56(84) bytes of data.
--- 10.1.1.200 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2026ms rtt min/avg/max/mdev = 0.074/0.099/0.117/0.018 ms PING 10.1.1.100 (10.1.1.100) 56(84) bytes of data.
--- 10.1.1.100 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2054ms rtt min/avg/max/mdev = 0.069/0.113/0.187/0.052 ms PING fc80::200(fc80::200) 56 data bytes
--- fc80::200 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2054ms rtt min/avg/max/mdev = 0.069/0.104/0.142/0.031 ms PASS: ip6gretap root@osboxes:~/linux-next/tools/testing/selftests/bpf# root@osboxes:~/linux-next/tools/testing/selftests/bpf# uname -a Linux osboxes 4.18.0-rc1-next-20180620 #1 SMP Tue Jun 26 12:26:00 PDT 2018 x86_64 x86_64 x86_64 GNU/Linux -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html