An option for a low bandwidth link, is the undocumented version: DEBUG IP PACKET DUMP
Don't look in online docs and context sensitive help. This actually shows you some of the contents of packets. There are tons of undocumented commands, I am leary of all, downright afraid of some (especially on the Cat 5). Heed the others warnings, if this is production, I would hesitate to use any debug command that will generate large amounts of output. John Swartz CCIE, CCNP, CCDP Boson Practice Tests http://www.boson.com ""Trevor J Corness"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > The only other way that I know of to avoid crashing the router, and getting > a > useful "sniff" of the WAN traffic, is to use a V.35 protocol analyzer, such > as the HP Internet Advisor. This is a pricey unit, but if you do this stuff > regularly (as my coworkers and I do), it is the easiest, and most > presentable > way to do this. Note: There is a short disruption of service while > inserting > and removing the V.35 Y-cable used to do this. > > Internet Advisor generates some very management-friendly reports, used to > present findings to people of a slightly more non-technical background. It > also has many VERY powerful features (think: SnifferPro-like GUI). > > I am sure there are other very similiar products out in the field, I am only > explaining what I have used. At the present time, this is only the HP > Internet Advisor. > > Regards, > Trevor J Corness, CCNA CCDA JNCIS NNCSS MCSE > Radian Communication Services Corporation > http://www.radiancorp.com > > > On September 26, 2001 07:20 am, MADMAN wrote: > > You can easily hedge your bets against crashing the router by using an > > extended access-list with ip packet debuging. > > > > Dave > > > > Dennis wrote: > > > debug ip packet... use with extreme care, you could crash the router if > > > you have lots of traffic... > > > > > > ""Ken"" wrote in message > > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > > > > > Hi, > > > > > > > > Does anyone know how I can sniff packet from a router. Or can the > > > > router redirect the packet to another Ethernet interface. Like Span > > > > port on the switch. I need to capture the packet that is going across > > > > the WAN > > > > > > interface. > > > > > > > Thanks. > > > > > > > > Ken Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=21757&t=21111 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
