🚀 go-pugleaf

Nick.Holloway@alfie.demon.co.uk (Nick Holloway) writes:

>Ivan A. Beveridge <iab@dreamtim.demon.co.uk> writes:
>> Dear Ivan - I think you should try setting up a route before expecting
>> packets to get routed "through" the dummy interface:
>> 
>> route add -host xxx.xxx.xxx.xxx dummy

>An IP address is recognised as being local if there is an interface with
>that IP address, which has a route through it.  This is why you need
>both of the following (presuming `hostname` can be resolved to your own
>IP address):

>	ifconfig dummy `hostname`
>	route add -host `hostname` dummy

>No packets actually get sent to the interface.  You can actually compile
>statistic into the dummy driver (look for "#undef DUMMY_STATS" in dummy.c)
>and see that this is so.

well, I tried to use a route to the dummy interface one and it 
worked for some things but not all things  (eg X )
So I did a 

ifconfig dummy hostname
route add -host hostname  lo

this works because an IP address is recognised as being local
if there is an interace wth that IP address
but a packet for that IP address will only get to be delivered
if there is a valid route to an interface.
for some things the dummy interface is not a real interface; i dont know
why ...


there is no requirement to have a route through an interface in order to
make its ip address local; there is  a requirement to have a route
for that ip address, going somewhere ...

leon
-- 

leon@cleopatra.hna.com.au
lgarde@scorch.hna.com.au