Date: Fri, 23 Jan 1998 13:03:47 -0800 (PST) From: Doug White <dwhite@gdi.uoregon.edu> To: Satish Bommareddy <satish@x.Holontech.com> Cc: "'questions@freebsd.org'" <questions@FreeBSD.ORG>, "'satish@holontech.com'" <satish@holontech.com> Subject: Re: arp handling of freeBSD Message-ID: <Pine.BSF.3.96.980123130219.8161i-100000@gdi.uoregon.edu> In-Reply-To: <1162BE4AB70ED111A648006097BDDB852473DA@mom.holontech.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, 21 Jan 1998, Satish Bommareddy wrote: > hi, > i am interested to find out how freeBSD handles arp requests > especially when we have multiple IP addresses configured > per interface. > > if i have the primary IP as x.x.x.x > and the secondary IP as y.y.y.y > and so on > and there is an arp request for the primary IP > what does it respond back with. The ethernet address of the primary IP, of course. > and in the same scenario > when it does a arp request. > for an different ip address say.. a.b.c.d If it's not on the system and the system's never seen it, then it ignores it. > what is the source address of the arp request. > is it always the primary IP address??? it doesn't matter; the reply says `IP x.y.z.q (the one you asked about) has MAC address a.b.c.d.e.f.' Run tcpdump sometime and watch the arp requests come by. Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.BSF.3.96.980123130219.8161i-100000>