On Monday 09 March 2009 06:33:13 Timothy Murphy wrote: > I've been playing with ipv6, > and can use it externally thanks to a tunnel from sixxs.net . > But I'm puzzled about its use inside my home network. > > What are the ipv6 addresses of the machines on this LAN? > Are they the ipv6 addresses given by "ifconfig -a"? > Or are they modifications of the "local address" given me by sixxs? > > I should say that the question is theoretical at the moment, > as I am running Centos-5.2 and shorewall on my server, > and it seems I have to wait until shorewall6 comes along for Centos, > which apparently needs a more recent kernel and iptables > than currently running under Centos, according to > <http://www.shorewall.net/IPv6Support.html>. > > But I'd like to be prepared for the happy day. > > I find that at present I can ping6 from any laptop to itself > using the ipv6 address from ifconfig -a: > ------------------------------------- > [tim@mary ~]$ ping6 -Ieth1 fe80::240:f4ff:fe4d:608a > PING fe80::240:f4ff:fe4d:608a(fe80::240:f4ff:fe4d:608a) from > fe80::240:f4ff:fe4d:608a eth1: 56 data bytes the fe80 addresses are link local -- not useful from one machine to the other. > 64 bytes from fe80::240:f4ff:fe4d:608a: icmp_seq=0 ttl=64 time=0.058 ms > ------------------------------------- > But I cannot ping6 from one machine to another: > ------------------------------------- > [tim@helen ~]$ ping6 -Ieth1 fe80::202:2dff:fe21:3c9 > PING fe80::202:2dff:fe21:3c9(fe80::202:2dff:fe21:3c9) from > fe80::240:f4ff:fe4d:608a eth1: 56 data bytes > ping: sendmsg: Operation not permitted > ------------------------------------- > > I assume that shorewall is preventing this. > > Incidentally, I didn't find any online documentation > giving much help with IPv6 under Fedora and/or Centos; > all the ipv6 documents seemed aimed at someone > very different to myself. > look into radvd this site is helpful: http://www.wsrcc.com/wolfgang/fedora/ipv6-tunnel.html > -- > Timothy Murphy > e-mail: gayleard /at/ eircom.net > tel: +353-86-2336090, +353-1-2842366 > s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland -- Anthony - http://messinet.com - http://messinet.com/~amessina/gallery 8F89 5E72 8DF0 BCF0 10BE 9967 92DC 35DC B001 4A4E
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