I'm running into this bug also. I haven't done any ipv6 configuration of any kind, but I sometimes run into apt failing because of this error.
Running the avahi-browse command line listed above multiple times in a row with maybe a second or two between each run resulted in the following output-- jesse@wopr:~$ avahi-browse -kprt _apt_proxy._tcp |grep '^=;.*;IPv4;.*' =;wlan0;IPv4;Squid\032deb\032proxy;_apt_proxy._tcp;local;box.local;192.168.1.10;8000; jesse@wopr:~$ avahi-browse -kprt _apt_proxy._tcp |grep '^=;.*;IPv4;.*' =;wlan0;IPv4;Squid\032deb\032proxy;_apt_proxy._tcp;local;box.local;fe80::230:1bff:feb9:1d93;8000; jesse@wopr:~$ avahi-browse -kprt _apt_proxy._tcp |grep '^=;.*;IPv4;.*' =;wlan0;IPv4;Squid\032deb\032proxy;_apt_proxy._tcp;local;box.local;fe80::230:1bff:feb9:1d93;8000; jesse@wopr:~$ avahi-browse -kprt _apt_proxy._tcp |grep '^=;.*;IPv4;.*' =;wlan0;IPv4;Squid\032deb\032proxy;_apt_proxy._tcp;local;box.local;fe80::230:1bff:feb9:1d93;8000; After writing up the previous part of this comment, I tried running the command line again, and the first result returned a ipv4 result and all of the following requests returned ipv6 results, as above. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/655187 Title: Cannot apt-get upgrade if squid-deb-proxy-avahi is running -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
