List Receiver wrote: > Tom Eastep wrote: >> >> Have you used a packet sniffer to try to understand what is >> happening? Seems like the only way to discover the root cause >> of the problem. >> >> -Tom > > No, not yet. I don't consider myself proficient at tcpdump to make that > part of my normal troubleshooting process. I guess I better learn. :^)
I agree :-) Running a complex multi-router setup without being able to use the routers' basic troubleshooting tools is a real handicap. Be sure to use the -e option to tcpdump so that you can see the link-layer addresses. Ethereal is also nice as it gives a graphical display. It's display is similar to Shomiti Surveyor Lite, the sniffer featured in "Internet Core Protocols: The Definitive Guide" by Eric A. Hall. I think that book is a "must have" for network administrators. -Tom -- Tom Eastep \ Nothing is foolproof to a sufficiently talented fool Shoreline, \ http://shorewall.net Washington USA \ [EMAIL PROTECTED] PGP Public Key \ https://lists.shorewall.net/teastep.pgp.key
signature.asc
Description: OpenPGP digital signature
------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________ Shorewall-users mailing list Shorewall-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/shorewall-users
