Pi-hole makes many calls to ip6.arpa and in-addr.arpa

[struggingdude]

Expected Behaviour:

Not sure...

Actual Behaviour:

Pi-hole makes numerous request to in-addr.arpa (for instance to itself, calling XX.XX.168.192.in-addr.arpa, where XX.XX.168.192 is the reverse ipv4 of the pi -- the router does too, but to external IPs) and even more so to addresses such as c.3.7.a.b.7.3.0.8.c.4.5.6.8.2.4.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa.

These are all PTR type.

Any idea what to make of this?

Debug Token:

https://tricorder.pi-hole.net/d7QmdfQ4/

[jfb]

Pi-hole is trying to get the names of network clients.

 Feb 23 00:12:43 dnsmasq[1458912]: query[PTR] 2.8.168.192.in-addr.arpa from 192.168.8.2
 Feb 23 00:12:43 dnsmasq[1458912]: config 2.8.168.192.in-addr.arpa is <PTR>

From the Pi terminal, what is the output of the following:

nslookup 192.168.8.2 127.0.0.1

[struggingdude]

Thanks @jfb. It gives me (expectedly so, I guess):
2.8.168.192.in-addr.arpa name = pi.hole.

[jfb]

That is the expected answer. The traffic you are seeing appears normal.

[struggingdude]

Fair enough, but is there a way to avoid such repeated calls? and what about the "c.3.7.a.b.7.3.0.8.c.4.5.6.8.2.4.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa."-type ones?

[jfb]

This PTR is for an IPV6 address.