Hello,
We are using a LogTraffic.sh script to log client stats at disconnect:
client-disconnect scripts/LogTraffic.sh
This script logs (among other) the assigned IPv4 and IPv6 addresses,
configured in a ccd file as follows for a specific user:
ifconfig-push 10.201.32.4 255.255.252.0
ifconfig-ipv6-push 2001:648:2011:xxxx::4/64 2001:648:2011:a32::1
Although the client connects and gets the configured IP Addresses, the
log script does not seem to log the IPv6 address correctly:
logger -p local5.info -t openvpn -- "{\"clientUID\": \"$username\",
\"clientHostAddress\": \"$trusted_ip\", \"clientIPv4\":
\"$ifconfig_pool_remote_ip\", \"clientIPv6\": \"$ifconfig_ipv6_remote\",
\"txVolume\": $bytes_sent, \"rxVolume\": $bytes_received,
\"sessionStartUnix\": $time_unix, \"sessionStopUnix\": $((time_unix +
time_duration)), \"sessionDurationSeconds\": $time_duration,
\"sessionStart\":\"$(date --date=@$time_unix)\",\"sessionStop\":\"$(date
--date=@$((time_unix + time_duration)))\", \"sessionDuration\":
\"$(printf '%02dh:%02dm:%02ds\n' $((time_duration/3600))
$((time_duration%3600/60)) $((time_duration%60)))\" }"
In particular, the parameter: ifconfig_ipv6_remote does not seem to
contain the right value (unless I am not using the right parameter in
the first place).
In the above user example, the IPv6 address logged was
2001:648:2011:a32::2, whereas we would like to log the address:
2001:648:2011:xxxx::4. (Note that the logging takes place in the systemd
journal.)
We are on CentOS 8. I have tested using versions 2.4.11 (from EPEL) and
2.5.2 (from dsommers/openvpn-release).
I don't know if the whole system setup/architecture affects the
discussed parameter values, in which case I can provide more details, if
requested.
Any idea or other feedback/advice on the above will be welcome.
Thanks in advance,
Nick
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