[solved] Nlbwmon vs ipv6

[aboaboit]

Installed, changed the retention to 12 periods (months), added "guest" and "vpn" to local networks, "lan" was already there. "lan" has no IPv6, "guest" and "vpn" have a fixed prefix thanks to a he.net tunnel.

/etc/config/nlbwmon:

config nlbwmon
	option commit_interval '24h'
	option refresh_interval '30s'
	option database_directory '/var/lib/nlbwmon'
	option database_interval '1'
	option database_limit '10000'
	option protocol_database '/usr/share/nlbwmon/protocols'
	option database_generations '12'
	list local_network '192.168.0.0/16'
	list local_network '172.16.0.0/12'
	list local_network '10.0.0.0/8'
	list local_network 'guest'
	list local_network 'lan'
	list local_network 'vpn0'

my work phone is on the "guest" wifi and I can use various IPV6 services such as ipv6.google.com, test-ipv6.com, and ipv6-test.com

not much but there should be some IPV6 traffic in the stats, yet there is none.
I saw a bugreport comment mentioning issues with changing prefixes but this is not my case: I have a fixed /48

The examples show IPV6 works but ... is there additional config to write?

[vgaetera]

The functions responsible for subnet fetching might not work for all protocols.
Try to add your IPv6 prefixes to the local_network list.
Also verify that you can pass the test on using IPv6 by default.

[aboaboit]

Yes, the tests are positive.
Adding the /48 prefix did the trick: I somehow assumed it would monitor whatever IPV6 prefix was on the interfaces corresponding to the IPV4 ranges.
Thanks.

[hnyman]

Sometimes nlbwmon starts before the IPv6 interface is properly fully up. And then the IPv6 addresses are not monitored. Simple restart of nlbwmon helps. ( I usually check from the process list if nlbwmon process has the router's IPv6 address in the parameter list.)