Condition Forwarding; only showing IP address

Help Synology
1

so I've set DNS Settings -> Conditional forwarding

true,192.192.168.1.0/24,192.168.1.1

then ran:

sudo service pihole-FTL restart

but Top Clients (total) and Top Clients (blocked only) are still showing the client IP address, any help? I've also checked and unchecked the Never forward non-FQDN A and AAAA queries option but doesn't seem to do anything. 192.168.1.1 (Synology Router) is running my DHCP and Pihole DNS is using Unbound. Pihole is running on a Pi5.

Anyone got any sugestions?

2

true,192.168.178.0/23,192.168.178.1

in my case.
I think you have a typo in your left IP address

3

That mid part should likely read 192.168.1.0/24 - adjust if and as required.

When done, please share the output of:

nslookup 192.168.1.1 192.168.1.1
4

Hi @Bucking_Horn - apologies for the late reply.

it brings back:

** server can't find 1.1.168.192.in-addr.arpa: NXDOMAIN

also fixed the typo.

EDIT: so i updated pihole to core 6.0.4, ftl 6.0.3 and the names are now showing - coincidence?

5

Is your DNS server enabled on your Synology router?

If DNS is disabled, pi-hole will not be able to lookup the PTR records on the router for your DHCP leases.

6

That's not the full output, but what you've shown would imply that there is a DNS server running on 192.168.1.1, but it doesn't know a name for 192.168.1.1 (itself), so your router's DNS server may not have a name for itself, or it may not create PTR records required for such reverse lookups.

You could test whether it would know how to reverse other local IPs by substituting the first IP in that nslookup, and whether it knows to resolve local names, e.g.

nslookup <hostname> 192.168.1.1

where you substitute <hostname> with a loacl name you'd expect your router to know.

7

so i updated pihole to core 6.0.4, ftl 6.0.3 and the names are now showing - coincidence?

8

well i have "unbound" running on my pi4 - so is that a no as the router is not running the DNS?

9

Unbound has nothing to do with your router's DNS server. You'll likely want to login into the Synology interface and see if you can turn on the DNS server. How do I set up a DNS server on my Synology NAS? - Synology Knowledge Center

10

Possibly - it would depend on your previous FTL version.
There was a glitch in parsing Conditional Forwarding under certain circumstances, but that had been fixed with 6.0.2 already.

11

thank you, i'll have a look at that.

12

ah right, i went from .01 to 0.3 so that could have fixed it. Thank you for your support.