This is driving me absolutely batty. I have an ADSL connection with a /29 block of static IPs. I was originally using a BroadMax DSL modem. The modem works but locks up semi-regularly. Behind the modem, I have a 2651XM router. Tired of having to reboot the modem, I picked up an ADSL WIC for the router. After configuring everything, the router connects via ADSL and everything appears to be fine on the router. The problem is that I can not access some web pages. Hotmail.com and myspace.com are two that I know will not load but they aren't the only two. I can ping the web site IPs, at least those that answer ping. The page will start to load and then stall. Some pages will time out, others will simply say "loading" and never complete, even if left up over night. If I switch back to the BroadMax modem, I can load the same webpages without any issue. I get the exact same behavior regardless of what browser I'm using, and on Windows and Linux, so it's unlikely to be any sort of host issue.
I've checked the web page IPs and there doesn't appear to be any pattern. They're certainly not all in a common subnet or anything. The sites where I'm having an issue do all seem to be more complex sites with lots of scripting. I've tried to find out if the pages are doing anything weird, such as opening connections on unusual ports or transferring stuff using unusual protocols, but I haven't been able to identify anything. I'm not at all certain that it's only web page traffic that has issues, but that's what I've noticed to this point. I run a mail server and a small mailing list, and I've gotten a couple of complaints of messages bouncing from one user but I believe that's his issue, not mine. Mail appears to be flowing normally otherwise. Here's the config I have on the router: Interface ATM0/0 no ip address no ip mroute-cache no atm ilmi-keepalive dsl operating-mode auto ! interface ATM0/0.1 point-to-point pvc 8/35 pppoe-client dial-pool-number 1 interface Dialer1 mtu 1492 ip address negotiated ip nat outside encapsulation ppp dialer pool 1 ppp chap hostname USERNAME ppp chap password 7 PASSWORD ppp pap sent-username USERNAME password 7 PASSWORD I'm running NAT for internal IPs but my servers have public IPs and the issue occurs regardless of whether I'm on a NAT'd machine or a server. The internal networks runs on switches hanging off the fastethernet ports, which are the internal NAT interface. The servers are connected to a 16 port switch module in the router. I was running some firewall rules but in an effort to solve this problem, I've removed all access lists other than the one liner which allows the private IPs into NAT. Ideas, hints and suggestions all welcome. _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
