[Last Call] Learn how to a build a cloud-first strategyRegister Now

x
?
Solved

Cisco Router : Determine incoming ports on interface?

Posted on 2011-10-25
1
Medium Priority
?
191 Views
Last Modified: 2012-05-12
Hi,

An application we use on the outside is trying to get through our router, but uses other ports besides 443. I am only forwarding port 443. How can I see what ports data is trying to arrive on going to a specific internal IP? Then I can forward those ports too.
0
Comment
Question by:First Last
1 Comment
 
LVL 26

Accepted Solution

by:
Soulja earned 2000 total points
ID: 37026594
If you have an acl on your outside interface, you can add the log command to the ip deny any any line and then look at your logging to see what is being denied.

deny ip any any log

at the end of the inbound acl.
0

Featured Post

Get your Conversational Ransomware Defense e‑book

This e-book gives you an insight into the ransomware threat and reviews the fundamentals of top-notch ransomware preparedness and recovery. To help you protect yourself and your organization. The initial infection may be inevitable, so the best protection is to be fully prepared.

Question has a verified solution.

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

In the hope of saving someone else's sanity... About a year ago we bought a Cisco 1921 router with two ADSL/VDSL EHWIC cards to load balance local network traffic over the two broadband lines we have, but we couldn't get the routing to work consi…
WARNING:   If you follow the instructions here, you will wipe out your VTP and VLAN configurations.  Make sure you have backed up your switch!!! I recently had some issues with a few low-end Cisco routers (RV325) and I opened a case with Cisco TA…
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…
Michael from AdRem Software outlines event notifications and Automatic Corrective Actions in network monitoring. Automatic Corrective Actions are scripts, which can automatically run upon discovery of a certain undesirable condition in your network.…

831 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