Solved

Changing mask from /30 to /29

Posted on 2013-11-12
2
301 Views
Last Modified: 2013-11-12
I have a router connected to a fw. I have /30 for the interfaces between the router and the fw. I was trying to change from /30 to /29 and the link went down and never came backup. It is EBGP between the router and the fw. Any thoughts? Thx

MPLS cloud <--> router <--> fw <--> internal network
0
Comment
Question by:leblanc
2 Comments
 
LVL 1

Author Comment

by:leblanc
ID: 39641848
anybody? :)
0
 
LVL 2

Accepted Solution

by:
psychokraft earned 500 total points
ID: 39642344
Check what you are advertising in BGP. If you are advertising the network with mask 255.255.255.252 but the network is now actually 255.255.255.248, BGP will not advertise it. BGP will only actually advertise a network if an exacty match exists. Or, you could use an aggregate address command, but it would be easier to just change the network statement under router bgp. Can you post a config?
0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

#Citrix #Citrix Netscaler #HTTP Compression #Load Balance
This article will inform Clients about common and important expectations from the freelancers (Experts) who are looking at your Gig.
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

792 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question