Hello together, If you do this: /home/agavenwurm/aiccu/usr/sbin/aiccu stop /home/agavenwurm/aiccu/etc/aiccu2.conf two times you get a very long list of things it does: aiccu_install() sock_getline() : "200 SixXS TIC Service on noc.sixxs.net ready (http://www.sixxs.net)" sock_printf() : "client TIC/draft-00 AICCU/2004.08.29-BETA2-gui Linux/2.6.6" sock_getline() : "200 Client Identity accepted" sock_printf() : "get unixtime" sock_getline() : "200 1095438520" sock_printf() : "username BRG1-6BONE" sock_getline() : "200 Choose your authentication challenge please" sock_printf() : "challenge md5" sock_getline() : "200 xxxxxxxxxxxxxxxxxxx" sock_printf() : "authenticate md5 xxxxxxxxxxxxxxxxxxx" sock_getline() : "200 Succesfully logged in using md5 as BRG1-6BONE (Benjamin Raphael Gehrels) from 80.185.166.112" sock_printf() : "tunnel list" sock_getline() : "201 Listing tunnels" sock_getline() : "T3839 2001:6f8:900:298::2 heartbeat deham01" sock_getline() : "202 <tunnel_id> <ipv6_endpoint> <ipv4_endpoint> <pop_name>" sock_printf() : "tunnel show T3839" sock_getline() : "201 Showing tunnel information for T3839" sock_getline() : "TunnelId: T3839" sock_getline() : "Type: 6in4-heartbeat" sock_getline() : "IPv6 Endpoint: 2001:6f8:900:298::2" sock_getline() : "IPv6 POP: 2001:6f8:900:298::1" sock_getline() : "IPv6 PrefixLength: 64" sock_getline() : "POP Id: deham01" sock_getline() : "IPv4 Endpoint: heartbeat" sock_getline() : "IPv4 POP: 212.224.0.188" sock_getline() : "UserState: enabled" sock_getline() : "AdminState: enabled" sock_getline() : "Password: xxxxxxxxxxxxx" sock_getline() : "Heartbeat_Interval: 60" sock_getline() : "202 Done" Succesfully retrieved tunnel information for T3839 sock_printf() : "QUIT And All That Could Have Been..." Tunnel Information for T3839: POP Id : deham01 IPv6 Local : 2001:6f8:900:298::2/64 IPv6 Remote : 2001:6f8:900:298::1/64 Tunnel Type : 6in4-heartbeat Adminstate : enabled Userstate : enabled aiccu_delete(2001:6f8:900:298::2) aiccu_os_exec("ip link set sixxs down") SIOCGIFFLAGS: No such device aiccu_os_exec("ip tunnel del sixxs") ioctl: No such device Now my question: Why all these Stuff if there isn't any Tunnel? I know that I do not have the most up to date version, but i did not see any fix in the Changelog... Benny