From: Michael Snyder (msnyder@xxxxxxx)
Date: Sun May 12 2002 - 21:02:17 GMT-3
I just had an evil thought. Since a local interface ping depends on a
remote icmp redirect, turning off icmp redirect would kill a local
interface ping.
Think I'll try that on my ccna trainees. 'whata mean you can't ping
your own router?' There's no way an access list on my router is
affecting you pinging an interface on your router.
My other favorite is to turn off proxy arp on people that use static
routes pointing to interfaces.
-----Original Message-----
From: Michael Snyder [mailto:msnyder@ldd.net]
Sent: Sunday, May 12, 2002 6:43 PM
To: 'Jason Sinclair'
Subject: RE: Why are local serial pings always double the time of remote
serial pings?
Thanks Jason,
We already know that a full round trip is about 34 msecs, so the extra
30 msecs must be the round trip of the redirect.
A#
A#ping 10.1.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.1, timeout is 2
seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip
min/avg/max =
68/70/80 ms
A#ping 10.1.1.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.2, timeout is 2
seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip
min/avg/max =
32/35/36 ms
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