nProbe BGP Plugin not able to start using IPv6 Address Family

[netravnen]

Problem statement

Missing documentation concerning how to utilize the nProbe BGP Plugin to ingest IPv6 prefix information via BGP to nProbe collector.

https://github.com/ntop/nProbe/blob/master/bgp/bgp_probe_client.pl

https://www.ntop.org/guides/nprobe/plugins/bgp.html

Feature Request

Missing Ipv6 support.

Example configuration block with IPv6 addresses.

my $local_ip    = '2001:db8:bad:da1::1';
my $local_as    = 65002;
my $remote_ip   = '2001:db8:face:b00c::2';
my $remote_as   = 4200000000;

my $refresh = Net::BGP::Refresh->new(
    AFI      => Net::BGP::AFI_IP6,
    SAFI     => Net::BGP::SAFI_BOTH,
    );

Error in the system log is:

Mar 02 13:42:40 trafficanalyzer1 systemd[1]: Started nProbe BGP Plugin v6 - https://www.ntop.org/guides/nprobe/plugins/bgp.html.
Mar 02 13:42:40 trafficanalyzer1 perl[26709]: Undefined address for Socket::pack_sockaddr_in at /usr/lib/x86_64-linux-gnu/perl-base/Socket.pm line 172.
Mar 02 13:42:40 trafficanalyzer1 perl[26709]:  at /usr/local/share/perl/5.34.0/Net/BGP/Process.pm line 119.

systemd conf

 % cat /etc/systemd/system/bgp_probe_client_6.service
[Unit]
Description=nProbe BGP Plugin v6 - https://www.ntop.org/guides/nprobe/plugins/bgp.html
Requires=network.target nprobe.service
After=network.target nprobe.service systemd-networkd.service

[Service]
Type=simple
ExecStart=/usr/bin/perl /usr/local/bin/bgp_probe_client_6.pl
ExecStop=/bin/kill -15 $MAINPID
Restart=on-abnormal
RestartSec=5

[Install]
WantedBy=multi-user.target

System info

 % lsb_release -d 
Description:	Ubuntu 22.04.2 LTS

 % uname -p
x86_64

 % uname -r
5.15.0-67-generic

 % systemd-detect-virt 
kvm

[netravnen]

If I explicitly set the ListenAddress (in Net::BGP::Process), too. The error is this msg instead,

Mar 02 13:46:04 trafficanalyzer1 systemd[1]: Started nProbe BGP Plugin v6 - https://www.ntop.org/guides/nprobe/plugins/bgp.html.
Mar 02 13:46:04 trafficanalyzer1 perl[27093]: Undefined address for Socket::pack_sockaddr_in at /usr/lib/x86_64-linux-gnu/perl-base/Socket.pm line 172.
Mar 02 13:46:04 trafficanalyzer1 perl[27093]:  at /usr/local/bin/bgp_probe_client_6.pl line 144.
Mar 02 13:46:04 trafficanalyzer1 systemd[1]: bgp_probe_client_6.service: Main process exited, code=exited, status=29/n/a
Mar 02 13:46:04 trafficanalyzer1 systemd[1]: bgp_probe_client_6.service: Failed with result 'exit-code'.

[lucaderi]

The BGP plugin in nProbe is IPv4 only, as we have no way to test it with IPv6. Will offer this in order to add IPv6 support?

[netravnen]

we have no way to test it with IPv6

Is this due to missing test case(s)? Or other reasons?

Is there anything I as an end-user can possibly contribute to have IPv6 support for the nProbe BGP plugin without being a developer?

Will offer this in order to add IPv6 support?

I bit confused due the word placing in that sentence :confused: and the question mark at the end.

[zunder1990]

Any update on proper v6 support? My ntop server lives behind a nat firewall and I have no desire to change that. I would prefer to setup v6 bgp sessions with my routers.