ARC server is listening on ip6 port, but ip6 is not activated on debianf

Roon Software Discussion ARC
1

Hi, my roon server (latest sw) is running on debian. ip6 is disabled by an entry (/etc/sysctl.d/70-disable-ip6.conf):

net.ipv6.conf.all.disable_ipv6=1
net.ipv6.conf.default.disable_ipv6=1
net.ipv6.conf.lo.disable_ipv6=1

there is no ip6 interface, only ip4 interfaces:

and netstat -tulpn | grep 35529 output shows, that roon server is listening ony the defined arc port, but its on ip6 and not on ip4:

tcp6       0      0 :::35529                :::\*                    LISTEN      1012/RoonAppliance```
2

Is the port for ARC set to 36629? If so, the local device is listening on all IP addresses (0000:0000:0000:0000:0000:0000:0000:0000:36629, but there is no connection. Likely on 0.0.0.0:36629, too.

Just because you disable IPv6 on the interfaces does not prevent an application from opening a socket.

3

as I wrote, there is NO ipv4 entry (0.0.0.0:35529)

4

I don’t understand what you are saying. Have you set the ARC port to 0 (zero) or is it set to 35529?

5

it’s set to 35529
I have set /etc/sysctl.conf
….
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1

and rebooted, now roon uses ip4 and netstat -tulpn | grep 35529 shows
tcp 0 0 0.0.0.0:35529 0.0.0.0:* LISTEN 1003/RoonAppliance