Thanks for the reply. My 5 static addresses are 98.x.x.x The DHCP address my modem automatically received was 72.x.x.x I emailed the technical contact listed under the whois lookup for the website (www.tricenturion.com), which is Blue Cross Blue Shield of South Carolina. I'm not holding my breath for a reply, but we'll see. If I perform a trace route from an internet account that CAN browse the website, it stops at the same IP address that I get stopped at. This address is: 206.112.91.177 How do I run a TCP-based traceroute with port 80? Thanks. -Dave
-----Original Message----- From: Ben Scott [mailto:[EMAIL PROTECTED] Sent: Saturday, December 22, 2007 8:59 PM To: NT System Admin Issues Subject: Re: My IP Range is listed as "Reserved by IANA.org" On Dec 21, 2007 11:48 PM, Kurt Buff <[EMAIL PROTECTED]> wrote: >> You said your ISP is blocking traceroute. That's actually pretty >> much impossible. > > Nope - see next note Nope. Next time, please read my entire message before you start replying to it. The only way to block traceroute would be to block all ICMP "Time Expired" messages. I suppose you probably can find an "Internet provider" doing so (the world's a big place), but I'd question if they really qualify as an *Internet* provider if they're stripping important IP control messages. But baring that, a traceroute is always possible. What you might find is some providers trying to block ICMP echo request and/or the UDP ports used by some traceroute implementations. But that doesn't block traceroute. All a traceroute does is send packets designed to expire. Those don't have to be any particular packets at all. So traceroute using packets destined for TCP/80. If your Internet provider is blocking TCP/80, you *really* need to get a better provider... > Layer four traceroute is your friend, but on Windows it requires Cygwin. There are many traceroute implementations in the world. Some examples that don't need Cygwin: ftrace - http://www.r1ch.net/stuff/ftrace/ - Optional UDP mode. GUI and CLI versions. Self-contained and lightweight. http://www.nscan.org/ has a Win32 GUI traceroute which uses UDP. It's self-contained and lightweight. hping - http://www.hping.org - Can construct arbitrary packets, including a TCP traceroute. Website is a bit of a mess, but there is an updated version which doesn't need Cygwin and works on Win XP SP2 at the http://sourceforge.net/projects/sectools site. It might need WinPCap. -- Ben ~ Upgrade to Next Generation Antispam/Antivirus with Ninja! ~ ~ <http://www.sunbelt-software.com/SunbeltMessagingNinja.cfm> ~ ~ Upgrade to Next Generation Antispam/Antivirus with Ninja! ~ ~ <http://www.sunbelt-software.com/SunbeltMessagingNinja.cfm> ~
