[Beowulf] How to judge whether an ip address is local or not
hahn at physics.mcmaster.ca
Mon Aug 15 13:48:37 EDT 2005
> > I need to judge whether an ip address is local in kernel state.
> > Can anyone help me?
> > Great appreciation to any apply.
> What do you mean by "local"? There are all sorts of ways to learn all
> sorts of pieces of information about ip addresses and network
I thought the query was really "how can I tell if an IP is local,
xor if it requires going through a router". I have no idea what
the reference to "kernel state" means - obviously the kernel uses
the same sequence of increasingly specific routes to determine how
to handle a packet. the routes are not privileged (/sbin/ip route show
works fine as a normal user)
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