Date: Wed, 14 Jul 1999 09:29:10 -0500 (CDT) From: "Jasper O'Malley" <jooji@webnology.com> To: freebsd-hackers@freebsd.org Subject: Final (maybe) ARP breakage plea Message-ID: <Pine.LNX.4.02.9907140907180.19885-100000@mercury.webnology.com>
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I realize it's not real high on the list of things to fix, but proxy ARP
is still broken in -STABLE. If anyone know the answers to any of these
questions, please drop me a line so I can try fixing it:
1) Can anyone explain the difference between "published" ARP table
entries, and "published (proxy only)" ARP table entries?
2) What purpose does the sin_other parameter of the sockaddr_inarp
structure serve (defined in /usr/include/netinet/if_ether.h, and set
to SIN_PROXY for "proxy only" ARP entries)?
3) How about the significance of the RTF_HOST routing message flag (i.e.
how does an IP "host" route functionally differ from a "net" route with
a /32 netmask)? Or does this only have significance for non-IP routes?
4) What's the purpose of this snippet of code from rtmsg() in
src/usr.sbin/arp/arp.c?
if (doing_proxy) {
if (export_only)
sin_m.sin_other = SIN_PROXY;
else {
rtm->rtm_addrs |= RTA_NETMASK;
rtm->rtm_flags &= ~RTF_HOST;
}
}
Cheers,
Mick
The Reverend Jasper P. O'Malley dotdot:jooji@webnology.com
Systems Administrator ringring:asktheadmiral
Webnology, LLC woowoo:http://www.webnology.com/~jooji
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