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SubjectRe: notion of a local address [was: Re: ioctl SIOCGIFNETMASK: ip aliasbug 2.4.9 and 2.2.19]
"H. Peter Anvin" wrote:

> In autofs, I use the following technique to determine if the IP number
> for a host is local (and therefore vfsbinds can be used rather than
> NFS mounts):
> connect a datagram socket (which won't produce any actual traffic) to
> the remote host with INADDR_ANY as the local address, and then query
> the local address. If the local address is the same as the remote
> address, the address is local.

That will always work, even when you have multiple ethernet


Ben Greear <> <>
President of Candela Technologies Inc
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