On Fri, Aug 17, 2012 at 09:18:01PM -0600, Devin Reade wrote: > fred smith <fredex at fcshome.stoneham.ma.us> wrote: > > On Thu, Aug 16, 2012 at 09:20:52PM -0700, John R Pierce wrote: > > >> this is on your eth0 side, I'm assuming thats the WAN side of your > >> firewall/gateway ? if so, then yes, I imagine its something at your > >> ISP, you might ask them what these are. > > > > Yup, that's the WAN side of the router. I'll go yell at them, probably > > tomorrow. > > I wouldn't bother. thanks for the info. I didn't really expect to get any swift action, I kinda figured "it is what it is, like it or lump it" would be their response. but I still might drop them an email with some log excerpts just to see how they respond. I'm retired, I have plenty of time! :) > > Depending on the demarc equipment used by your ISP and how they have > their network configured, you can wind up seeing this kind of crap > and there's bugger-all that you can do about it > > For example, with a cable modem, your assigned upstream segment > might be network-A, but other people in your neighborhood might be > on network-B, both serviced by the same RF carrier. You shouldn't > see unicast traffic for your neighbors, but you could very well see > broadcast (and dhcp is the most likely culprit). I know of a > particular case where the ISP will assign statics out of one pool, > dynamic IPs out of the other pool, a single modem will service > machines out of both pools, and therefore you also see broadcast > out of both pools. > > This isn't specific to cable. With both cable and DSL providers > I've seen both the only-see-your-own-traffic situation and the > see-your-neighbors-broadcast situation. It all depends on the > equipment and the configuration. And when I mean configuration, > I'm talking about for everyone in your node, if not for your > whole city. So it's unlikely that your ISP will change it just > for you. > > But if you still want to call them, fill your boots ... > > Devin > -- > He is a prime candidate for natural deselection. > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos -- ---- Fred Smith -- fredex at fcshome.stoneham.ma.us ----------------------------- "For him who is able to keep you from falling and to present you before his glorious presence without fault and with great joy--to the only God our Savior be glory, majesty, power and authority, through Jesus Christ our Lord, before all ages, now and forevermore! Amen." ----------------------------- Jude 1:24,25 (niv) -----------------------------