Hello, Going through the aiccu test (#aiccu test aiccu.conf), it fails at step 6: ###### [6/8] Ping the IPv6 Remote/POP Inner Tunnel Endpoint ### This confirms the reachability of the other side of the tunnel ### If it doesn't reply then check your interface and routing tables ### Don't forget to check your firewall of course ### If the previous test was succesful then this could be both ### a firewalling and a routing/interface problem PING6(56=40+8+8 bytes) ping6: sendmsg: Host is down ping6: wrote gw-89.bru-01.be.sixxs.net 16 chars, ret=-1 ping6: sendmsg: Host is down ping6: wrote gw-89.bru-01.be.sixxs.net 16 chars, ret=-1 ping6: sendmsg: Host is down ping6: wrote gw-89.bru-01.be.sixxs.net 16 chars, ret=-1 --- gw-89.bru-01.be.sixxs.net ping6 statistics --- 3 packets transmitted, 0 packets received, 100% packet loss BTW, my firewall was turned off during aiccu setup/tests. Does anyone know what could be the problem? Any help would be appreciated. Thank you in advance. Regards, Tim