On Sat, 2005-05-07 at 21:18 +0300, Peter wrote: > On Sat, 7 May 2005, Herbert Graf wrote: > > > Date: Sat, 07 May 2005 10:14:04 -0400 > > From: Herbert Graf > > Reply-To: Microcontroller discussion list - Public. > > To: Microcontroller discussion list - Public. > > Subject: Re: [OT] Verizon IP > > > > On Sat, 2005-05-07 at 10:33 +0100, Howard Winter wrote: > >> What to I have to let through the router for trace route > >> to work? > > > > ICMP, although some people generically call it "ping", the ping is only > > a portion of ICMP. TTYL > > But the specific part of icmp that allows traceroute to work is > ping/echo and many routers have a setting that is called 'allow ping' or > similar. True, but the point I was making was that some routers say they "block ping" yet end up blocking all ICMP packets. Some routers properly call this "block ICMP", others just "block ping" but end up blocking everything ICMP, and others just block ping/echo packets. Go figure... ----------------------------- Herbert's PIC Stuff: http://repatch.dyndns.org:8383/pic_stuff/ -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist