Hi. Thanks for your comment. > Mr. Yaniv At Sun, 19 Jan 2003 10:38:49 +0200, Yaniv Kaul wrote:Here's my setup: Solaris: bonzo:root(su) [~] # cat /etc/hostname6.ip.tun1 tsrc 192.168.9.190 tdst 10.9.201.5 modinsert fw6@1 up Linux: [root@dudu ~]# cat /etc/sysconfig/network-scripts/ifcfg-sit1 DEVICE="sit1" BOOTPROTO="none" [required] #IPV6_MTU="1280" # MTU of link [optional] - for tests I think your Solaris is not configured correctly.My setting is Solaris (Solaris is Solaris8.): ---- # cat /etc/hostname6.ip.tun1 tsrc <Solaris IPv4 IP addr> tdst <Linux IPv4 IP addr> up ---- I try to add "modinsert fw6@1", but it failed. error message is "ifconfig: fail to insert module: fw6: Invalid argument". Linux: ---- bash-2.05$ cat ifcfg-sit1 DEVICE=sit1 BOOTPROTO=none IPV6INIT=yes IPV6TUNNELIPV4=<Solaris IPv4 IP addr> IPV6ADDR=fe80::9641:2913/64 IPV6_AUTOCONF=yes ---- Kind regards.