[ Thanks to Jane Walker for this link.
]
“When deploying new Linux servers, moving existing servers or
using Linux for routers and firewalls, there are often issues with
network integration with existing infrastructure. The following
tips are based upon Linux commands under Red Hat Enterprise Linux 4
(RHEL4).“These helpful hints on working with arp, ipconfig, tcpdump and
iptraf will offer examples of advanced commands for easing network
integration problems commonly associated with network
routing…”