* IPv6 parsing issues in conntrackd?
@ 2020-01-02 13:25 Nico Schottelius
0 siblings, 0 replies; only message in thread
From: Nico Schottelius @ 2020-01-02 13:25 UTC (permalink / raw)
To: netfilter; +Cc: timothee.floure, Balazs Uniy
Good morning,
I am wondering how to use conntrackd with IPv6.
when I try to use UDP + IPv6 [0], I get the error message
"[ERROR] inet_pton(): IPv6 unsupported!". I checked the IPv6 address and
inet_pton() outside of conntrackd nicely works [2] (sample code from
inet_pton(3).
When I change the same construct to use TCP [1], I get a different error
message:
[Thu Jan 2 14:21:32 2020] (pid=23772) [ERROR] can't open channel socket: Invalid argument
[Thu Jan 2 14:21:32 2020] (pid=23772) [ERROR] initialization failed
[Thu Jan 2 14:21:32 2020] (pid=23772) [ERROR] conntrackd cannot start, please review your configuration
And from the manual it looks like that IPv6 multicasting is not
supported - is that correct?
I have a couple of routers in IPv6 only networks and was wondering how
to use conntrackd with that. Am I doing something fundamentally wrong
here?
Another question: the source code of conntrackd-1.4.5 does not output
the errno string, would that be something you'd accept as a patch?
Best regards,
Nico
[0]
...
Sync {
Mode FTFW {
ResendQueueSize 131072
PurgeTimeout 60
ACKWindowSize 300
DisableExternalCache Off
}
UDP Default {
IPv6_address fe80::d66d:6dff:fe33:e00
IPv6_Destination_Address fe80::21b:21ff:febc:7c80
Port 3780
Interface wlan0
Checksum on
}
}
...
[1]
Sync {
Mode FTFW {
ResendQueueSize 131072
PurgeTimeout 60
ACKWindowSize 300
DisableExternalCache Off
}
TCP Default {
IPv6_address fe80::d66d:6dff:fe33:e00
IPv6_Destination_Address fe80::21b:21ff:febc:7c80
Port 3780
Interface wlan0
Checksum on
}
}
[2]
[13:29] line:~% ./pton i6 fe80::21b:21ff:febc:7c80
fe80::21b:21ff:febc:7c80
[13:29] line:~% ./pton i6 fe80::21b:21ff:febc:7c7a
fe80::21b:21ff:febc:7c7a
[13:29] line:~%
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