--On Wednesday, March 30, 2005 12:25:01 AM +0100 Pedro Tom�
<[EMAIL PROTECTED]> wrote:
> Hello all!
> I'm developing a micro-mobility protocol in an IPv6 network for my
> final degree project but I'm having some problems using IPv6.
>
> Imagine the following, simple, situation:
> I'm connecting only two machines, a gateway and a pc that will work as
> an access point using hostap. I have assigned global IPv6 addresses
> (2000::etc/3) to simplify things (the protocol v4 is using global ipv4
> for the machines) and my network is an island isolated from the
> internet.
>
> I've configured the routes to be point-to-point from the GW to the AP
> and vice-versa.
> When I try to ping the AP from the GW, the src addr of the packets
> transmited from the GW is the global IPv6 addr that I've assigned to
> the GW (so far so good), but when I try to ping the GW from the AP,
> the src addr of the packets transmited from the AP is the link local
> IPv6 addr autoconfigured by the AP... why is that? shouldn't the src
> addr be the global addr ? they behave differently, the GW and the
> AP...in either situations, the src addr should be OR the link local,
> or the global addr, but the should be the same type of addr in both
> situation.
That's very strange, because the scope should always be the same. What
happen using e.g. telnet?
> The second problem is when I turn on ipv6 forwarding using the echo 1
>> /proc/.../ipv6/conf/all/forwarding.
> When I do this, if I ping the AP from the GW, the echo request gets to
> the AP but the AP never answers with an echo reply..
> If I try to ping the GW from the AP I get the message "connect:
> network is unreachable"
>
> It sounds weird that turning on ipv6 forwarding "destroys" the
> *simple* ping point-to-point between AP and GW...
>
> If somebody could help with this two issues I would be very gratefull :)
> I'm using debian with a 2.6.8 kernel.
Looks like something is going wrong here. Take a look in on both sides:
# ip -6 addr show
# ip -6 route show
# ip -6 neigh show
# sysctl -a | grep ipv6
Peter
--
Dr. Peter Bieringer http://www.bieringer.de/pb/
GPG/PGP Key 0x958F422D mailto: pb at bieringer dot de
Deep Space 6 Co-Founder and Core Member http://www.deepspace6.net/
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