Re: Trace results - what does this indicate?
Thank you for really cheering me up - Im stuck at home unwell at the mo :) I have to get me an Acme Evil Elf Trap. Im cosidering making my own using an appropriately decorated and labelled (elves cant read) cardboard box and planting it in our router cabinet at work Given that most messages seem to be about things not working or misunderstood maybe we should make "this is a bad thing" the groupstudy motto :) Ejay Hire wrote: > > 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. -- [EMAIL PROTECTED] Lauren Child, BSc. CCNP-ATM & CCDP Certified http://www.laurenchild.net/ http://www.routerfaq.net/ **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Trace results - what does this indicate?
Ummm... looks like a loop, eh? Dale [=`) >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 > >**NOTE: New CCNA/CCDA List has been formed. For more information go to >http://www.groupstudy.com/list/Associates.html >_ >UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html >FAQ, list archives, and subscription info: http://www.groupstudy.com >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Trace results - what does this indicate?
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 **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Trace results - what does this indicate?
on a quick scan i would say you have a routing loop my friend. Check the 2 routers which are associated with these addresses - if you can. -Original Message- From: Watson, Rick, , OUSDC [mailto:[EMAIL PROTECTED]] Sent: 28 September 2000 13:47 To: [EMAIL PROTECTED] (E-mail) Subject: Trace results - what does this indicate? 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 **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Trace results - what does this indicate?
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 **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
