Just a guess.... I've seen routers configured to block forwarding to broadcast addresses. Perhaps the router is (mis-)interpreting the amazon address as a broadcast address because it ends in 255?
I'd start by checking the logs on the router. -R. Gary Richard 'Doc' Kinne wrote: > Folks: > > I'd like to see if anyone has heard of circumstances like this before. > > I have a server on the Amazon EC2 cloud running a website service. > This is largely working well. > > However I have one customer that cannot get to it from a specific > address. The IP address of my server is 75.101.149.255. When you do a > "whois" on this it comes up as: > > OrgName: Amazon.com, Inc. > OrgID: AMAZO-4 > Address: Amazon Web Services, Elastic Compute Cloud, EC2 > Address: 1200 12th Avenue South > City: Seattle > StateProv: WA > PostalCode: 98144 > Country: US > > which makes perfect sense. > > We originally thought that Amazon might be blocking access to the > service to specific IP or IP ranges, but based on traceroutes that > didn't seem to make sense. > > When my customer tries to do a traceroute from his place to my server > he doesn't even get out of his router: > > tracert 75.101.149.255 > Tracing route to [75.101.149.255] over a maximum of 30 hops: > 1 1 ms <1 ms <1 ms www.routerlogin.com > <http://www.routerlogin.com> [10.1.1.1] > 2 * * * Request timed out. > > I've never seen anything like that before. I can understand things > timing out when you get to the Amazon area, but timing out before you > even get into the Net proper? That doesn't make sense to me. > Everything else seems to work properly from his location from what > he's telling me. > > There is a part of me that thinks there may be something wrong somehow > with my customer's address. When I do a "whois" on the customer's > address it comes back as being owned by IANA, which doesn't seem right > at all. Also when I try a traceroute to his address *I* don't get past > my router in two totally separate locations (work, that has one ISP, > and home, which has a very different ISP). > > I've never quite seen anything act like this before and I'm not quite > sure how to puzzle it out. > > Does anyone have any thoughts? > -- > Doc Kinne, [KQR] > (From the Gmail Web Interface) > ------------------------------------------------------------------------ > > _______________________________________________ > bblisa mailing list > [email protected] > http://www.bblisa.org/mailman/listinfo/bblisa _______________________________________________ bblisa mailing list [email protected] http://www.bblisa.org/mailman/listinfo/bblisa
