You have a routing loop. This is a Bad thing.
Can be caused by:
1. Improper Route Redistribution
2. Drunk SysAdmins
3. Tiny Elves with evil intentions
4. A (non-permanent) static route that has gone down on a router that has a
default route set. (This one is sneaky) (So that's what the "permanent"
keyword does at the end of a static route...)
5. (On the internet) Improper AS_Path filtering in BGP.
Reccomendations:
1. "Show Ip route" on both routers and look at the administrative distances
of the looping routes.
2. Look for Less specific, but correct routes to the correct destination
hosts.
3. Look up the Admin distances to find the offending routing protocols.
4. If you are doing redistribution, use a distribute list to remove the
loop.
5. If you are using static routes, make them permanent
6. Get a ACME Evil Elf Trap..
7. Equip your router Console,Aux, and VTY ports with a Drunk SysAdmin
detector.
Good Luck
Ejay Hire
[EMAIL PROTECTED]
CCNA seeking Employment.
----Original Message Follows----
From: "Watson, Rick, , OUSDC" <[EMAIL PROTECTED]>
Reply-To: "Watson, Rick, , OUSDC" <[EMAIL PROTECTED]>
To: "[EMAIL PROTECTED] (E-mail)" <[EMAIL PROTECTED]>
Subject: Trace results - what does this indicate?
Date: Thu, 28 Sep 2000 08:47:07 -0400
What would the following trace results indicate (the names and numbers have
been changed to protect the innocent)..?
router>traceroute 147.254.213.1
Tracing the route to 147.254.213.1
1 198.254.100.125 0 msec 0 msec 0 msec
2 198.254.114.50 0 msec 0 msec 0 msec
3 198.254.31.97 4 msec 0 msec 0 msec
4 145.49.208.25 0 msec 4 msec 4 msec
5 145.49.208.26 0 msec 4 msec 0 msec
6 145.49.208.25 4 msec 4 msec 4 msec
7 145.49.208.26 4 msec 4 msec 8 msec
8 145.49.208.25 8 msec 8 msec 8 msec
9 145.49.208.26 8 msec 12 msec 4 msec
10 145.49.208.25 12 msec 12 msec 12 msec
11 145.49.208.26 8 msec 8 msec 8 msec
12 145.49.208.25 12 msec 20 msec 8 msec
13 145.49.208.26 12 msec 16 msec 12 msec
14 145.49.208.25 16 msec 20 msec 16 msec
15 145.49.208.26 12 msec 12 msec 8 msec
16 145.49.208.25 12 msec 8 msec 12 msec
17 145.49.208.26 8 msec 8 msec 8 msec
18 145.49.208.25 12 msec 12 msec 12 msec
...etc for 30 hops....
router>
Thanks for any insight...
Rick Watson
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