I run a mixed ipv6/1pv4 network. After upgrading samba and samba client to 3.3.7 on the client computer a cifs mount failed. The log on the client shows: kernel: CIFS: ip address too long kernel: CIFS VFS: cifs_mount failed w/return code = -22 changing the fstab entry from the dns name to the ipv4 ip address fixes the problem. dns returns: host servername servername has address 192.168.1.2 servername has IPv6 address 2001:470:1f07:221:d412:1ff:xxxx:xxxx Reproducible: Always
Maybe try the patch from bug #352868. ;)
samba-client was dropped from portage a while ago.