Telnet connection to pat on MacOS 15 doesn't work without turning off the firewall

[gunnarre]

pat version: Pat v0.16.0 (823b991) darwin/amd64 - go1.22.2

Operating system and architecture: MacOS 15.0.1 (24A348), darwin/arm64, using darwin/amd64 via Rosetta.

I set up a listener on telnet. I also allowed pat through the application firewall with sudo /usr/libexec/ApplicationFirewall/socketfilterfw --add /usr/local/bin/pat. However when I tried to connect from WoAD 1.5.3 on Android 8.1, it did not work unless I turn off the firewall completely with sudo /usr/libexec/ApplicationFirewall/socketfilterfw --setglobalstate off

If the bind address is blank "listen_addr": ":8774", the failure is silent. But if I input an IP address in the configuration, the log lines are

2024/10/19 09:43:25 Accept telnet failed: read tcp 192.168.10.149:8774->192.168.10.143:38482: read: socket is not connected
2024/10/19 09:43:25 Listener telnet failed: listen tcp 192.168.10.149:8774: bind: address already in use
2024/10/19 09:43:25 Will try to re-establish listener in the background...