Pihole container doesn't have any ports

[NathanSweet]

I've setup Pihole on a UDM-SE. It seems to be running but I can't ping it or hit the webserver from the UDM-SE. I can do so from the container, eg podman exec -u 0 pihole curl 10.8.8.8 shows the Pihole is serving HTML.

I don't have any firewall rules that would block traffic to/from the Pihole. I tried adding rules to explicitly allow it, didn't help.

I noticed the Ports column is blank:

$ podman ps
CONTAINER ID IMAGE                          COMMAND    CREATED        STATUS            PORTS      NAMES
47d63a95e65e docker.io/pihole/pihole:latest             11 minutes ago Up 11 minutes ago             pihole

It should show ports 53 and 80, yes? Any idea why it doesn't?

I tried using -p with podman run but I get bind: address already in use. None of the guides specify that -p should be used.

I don't know what else to try.

EDIT: I think -p is to map ports from the container to the host, which I don't want, so the blank Ports column is OK.

I found from the Pihole container I cannot ping the UDM or external sites, so I suppose something isn't right with the container's network setup.

[NathanSweet]

In my 10-dns.sh I had mistyped:

IPV4_IP="10.8.8.1"
IPV4_GW="10.8.8.1/28"

Obviously this should have been:

IPV4_IP="10.8.8.8"
IPV4_GW="10.8.8.1/28"