On Sun, May 05, 2002 at 04:39:42PM +0200, Xavier Sudre wrote:
> Where can I check this attribute ?
$ ip tunnel ls
> Is it posible to setup it in the /etc/network/interfaces file ?
Here's my current configuration:
auto v6uplink
iface v6uplink inet6 v4tunnel
address 3ffe:400:9d0::1
netmask 64
endpoint 128.176.191.66
up ip tunnel change v6uplink ttl 64
up ip route add 2000::0/3 dev v6uplink
up ip route add unreachable 3ffe:400:9d0::/48
> Finally what does it means ttl64 and ttl inherit ?
When entering the tunnel you put IPv6 in IPv4 packets and send these IPv4
packets to the tunnel endpoint. You can now either copy the hopcount from
the original IPv6 packet into your IPv4 packet (inherit) which means the
hops between your two tunnel endpoints count. Or you can set this TTL to a
fixed value (64 or any other value but enough to reach your tunnel
neighbour) so your tunnel looks like a one-hop link.
Oliver
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