?
Solved

Web server hosting the port 80 redirection cannot access itself

Posted on 2007-12-05
2
Medium Priority
?
328 Views
Last Modified: 2010-04-09
Port 80 on the external address of our Pix 501 (68.179.x.y) is redirected to our internal Web Server at  ip address 10.200.6.25. Everyone can access the web site properly, internal as well as external clients. Except from the Web server itself. If I go to address 68.179.x.y in IE from the web server itself, I get Page Cannot be displayed.

Is this a normal Cisco Pix behaviour preventing a redirected host to access itself from the external interface, or is it a misconfiguration on our part ?
0
Comment
Question by:ndidomenico
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 19

Accepted Solution

by:
nodisco earned 2000 total points
ID: 20415078
No its quite normal.  The PIX won't let traffic go back in the interface it originates from - the originating traffic is going out the PIX outside ip as thats where the address is but needs to come back in as its port-forwarded internally.

won't work.

If you want a quick workaround - put a DNS A record for the URL name - e.g. www.mycompany.com to the 10.200.6.25 address on your DNS server - or even just create an entry for this in the hosts file
0
 

Author Comment

by:ndidomenico
ID: 20419264
What is the security or technical reason for the Pix to block this form of out/in traffic ? This Pix is replacing a low-end Linksys router which was not blocking this sort of traffic.

For the workaround, I'm afraid it won't work in this case. Displaying the web page we need is done by first going to another web page on the Internet, which has a link that brings us to our web page, except that the link on that site is using an IP address (the external ip of the Pix) instead of a url name. Can we get arout this without having to modify this external web page ?
0

Featured Post

Free Backup Tool for VMware and Hyper-V

Restore full virtual machine or individual guest files from 19 common file systems directly from the backup file. Schedule VM backups with PowerShell scripts. Set desired time, lean back and let the script to notify you via email upon completion.  

Question has a verified solution.

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

For months I had no idea how to 'discover' the IP address of the other end of a link (without asking someone who knows), and it drove me batty. Think about it. You can't use Cisco Discovery Protocol (CDP) because it's not implemented on the ASAs.…
This article explains the fundamentals of industrial networking which ultimately is the backbone network which is providing communications for process devices like robots and other not so interesting stuff.
As a trusted technology advisor to your customers you are likely getting the daily question of, ‘should I put this in the cloud?’ As customer demands for cloud services increases, companies will see a shift from traditional buying patterns to new…
Both in life and business – not all partnerships are created equal. Spend 30 short minutes with us to learn:   • Key questions to ask when considering a partnership to accelerate your business into the cloud • Pitfalls and mistakes other partners…

649 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