• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 225
  • Last Modified:

Connected interfaces show two routes

i have on serial interface
wjhen i show ip route is shows 2 connected interfaces

one with a /27 and one with a /32.  the /27 is correct andt eh /32 is one ip off

i.e. 192.168.1.1/27
192.168.1.2/32

i do not know where the /32 is comming from.
0
maxis2cute
Asked:
maxis2cute
  • 2
  • 2
  • 2
1 Solution
 
donmanrobbCommented:
You would have to post your config for me to answer that. Possibly a loopback interface.
0
 
Don JohnstonInstructorCommented:
I'm guessing that this is a serial interface running PPP.

This is normal PPP behavior. With PPP on a serial link, you'll always see two entries in the routing table.  I knew the reason once (long ago), but I've forgotten why the protocol does this.
0
 
maxis2cuteAuthor Commented:
Donjohnston-excellent

if you can tell me you can get the points
0
Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

 
maxis2cuteAuthor Commented:
you get the points anyway, i am sure it is because if i use CEF, it has 2 tables.

0
 
donmanrobbCommented:
Haven't noticed that with PPP before :) Perhaps something to do wtih PPP's Peer Neighbor Route?
0
 
Don JohnstonInstructorCommented:
Sorry. I filed it away as "nice to know", not "need to know" and it's long gone. I put it up there with where did the "cisco" name come from, why is the sky blue and why does the phone ring after you sit down at the dinner table.

Suffice it to say that what you're seeing is normal and it's always going to happen with PPP.
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Cloud Class® Course: Python 3 Fundamentals

This course will teach participants about installing and configuring Python, syntax, importing, statements, types, strings, booleans, files, lists, tuples, comprehensions, functions, and classes.

  • 2
  • 2
  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now