Hello,

On Wed, 30 Mar 2005 09:12:32 +0200, Peter Bieringer <[EMAIL PROTECTED]> wrote:
> 
> 
> --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?
> 

telneting from the AP to the GW gives me the same thing...
src : AP link local addr
dest: GW global ip addr

telneting from the GW to the AP gives me the (right?) src and dest. addr:
src: GW global addr
dest: AP global addr

in both situation the scope should be the same, all global or all
local...I agree :(

> 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
> 

ip -6 addr show and ip -6 route show gives the things that I've showed
in the previous mail
ip -6 neigh show, done after some ping/telnet/whatever gives
in the GW:
fe80::201:29ff:fed0:8b59 dev eth1 lladdr 00:01:29:d0:8b:59 nud delay
2000::201:29ff:fed0:8b59 dev eth1 lladdr 00:01:29:d0:8b:59 nud reachable

in the AP:
fe80::240:f4ff:fe84:2b7f dev eth0 lladdr 00:40:f4:84:2b:7f nud delay
2000::240:f4ff:fe84:2b7f dev eth0 lladdr 00:40:f4:84:2b:7f nud reachable

and it looks right, I guess...

the sysctl-a | grep ipv6 gives me the same thing in GW and AP (except
for the normal stuff from the other GW interfaces)

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