North American Network Operators Group|
Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical
Re: New router feature - icmp error source-interface [was: icmp rpf]
Joseph S D Yao wrote:
On Mon, Sep 25, 2006 at 09:22:34AM -0400, Patrick W. Gilmore wrote:Why not just do a show ip route? since you can actually verify the information against your routing table.
This way you can see when the route was learned, where was it learned from and how long ago it was last updated...
the problem is that too many people "engineers" rely on traceroute... sure traceroute is a wonderful tool, however it is meant to assist you in "tracking down" the problem.
I've seen far too many "you are filtering, investigate please" when all that has been done is implementing acls and rate limiting.
IMO, If you want to implement a non-routable ip space to protect your backbone... go for it
if you want to icmp rate limit *i know level3 does this out of both nyc and la* which causes mass threads of "we are getting packet loss, please investigate" go for it ..
if your network engineers are not equipped with the information to how to fully diagnose a network/problem.... you should think about new hires.