On Fri, Jan 15, 2016 at 9:23 AM, sven falempin <[email protected]>
wrote:

>
> Ok this morning the routing of gif was not done , after deleting the
> default route and readding it,
> tada, it s routed again.
>
> I will test with 5.8 , is it enough or do you absolutely require current ?
> i think for this case only the kernel could be updated.
>
> Please take a look Test Log :
>
> #validate the routing is broken
>
> [1]-[villemarie]-[/root]
> # tcpdump -tteni gif0 icmp
> tcpdump: listening on gif0, link-type LOOP
> 1452867126.675719 172.16.0.1 > 8.8.8.8: icmp: echo request
> 1452867126.675899 172.16.0.2 > 172.16.0.1: icmp: host 8.8.8.8 unreachable
> 1452867126.785273 172.16.0.1 > 8.8.8.8: icmp: echo request
> 1452867126.785371 172.16.0.2 > 172.16.0.1: icmp: host 8.8.8.8 unreachable
> 1452867126.895401 172.16.0.1 > 8.8.8.8: icmp: echo request
> 1452867126.895552 172.16.0.2 > 172.16.0.1: icmp: host 8.8.8.8 unreachable
> 1452867127.005380 172.16.0.1 > 8.8.8.8: icmp: echo request
> 1452867127.005474 172.16.0.2 > 172.16.0.1: icmp: host 8.8.8.8 unreachable
>
> ^C
> 8 packets received by filter
> 0 packets dropped by kernel
>
> #But route is here, why replying unreachable ? (label is here because we
> manage multiple default route )
>
> [0]-[villemarie]-[/root]
> # netstat -rnv | grep defa
> default            192.168.10.1       UGS      115   684491     -     8
> re0   DHCLIENT MINE
>
> # ok lets try to confirm the yesterday strange behavior
>
> [1]-[villemarie]-[/root]
> # route delete default
> delete net default
> [0]-[villemarie]-[/root]
> # route add default 192.168.10.1 -mpath -label "DHCLIENT GIF"
> add net default: gateway 192.168.10.1
> [0]-[villemarie]-[/root]
> # tcpdump -tteni gif0 icmp
> tcpdump: listening on gif0, link-type LOOP
> 1452867248.839222 8.8.8.8 > 172.16.0.1: icmp: echo reply
> 1452867249.834122 172.16.0.1 > 8.8.8.8: icmp: echo request
>
> # wow that s strange !
>
>
>


It s all 5.8 stable now.
gif is unstable.

[0]-[58-gif]-[~]
# ping 172.16.0.1
ping: wrote 172.16.0.1 64 chars, ret=-1
--- 172.16.0.1 ping statistics ---
4 packets transmitted, 0 packets received, 100.0% packet loss
[1]-[58-gif]-[~]
# ifconfig gif0 down
[0]-[58-gif]-[~]
# ifconfig gif0 up
[0]-[58-gif]-[~]
# ping 172.16.0.1
PING 172.16.0.1 (172.16.0.1): 56 data bytes
64 bytes from 172.16.0.1: icmp_seq=0 ttl=255 time=1.122 ms

i now activate ifconfig gif0 debug

Something nasty in there.


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