cannot access internal web server

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Nov 1st, 2011
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i cant resolve one problem in may 1921 isr router, i have a web server in my internal lan , i set up static nat for accessing that web server from outside and it woks fine but i cannot view that site from internal workstations can you suggest me what to do. as i know when request gets to router it performs static nat and sends packet to the web server, but the server responds with its private source address instead the public address witch workstation expects and connection cannot established


Posted by WebUser Nika Picxelauri

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cadet alain Tue, 11/01/2011 - 14:55
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This is called hairpinning and it's not implemented on Cisco enterprise routers.

One workaround is to use DNS doctoring: provided you have a public DNS with the record for your public IP then you can access it from inside by fqdn.


Kishore Chennupati Tue, 11/01/2011 - 17:57
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Alain's correct

Maybe you have 2 copies.

1 Production for public

2. Development for your internal access to update /make changes etc. This is more recommended method

    is normally suited in hosting environments



fb_webuser Thu, 11/03/2011 - 17:17
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I don't get it. If you are trying to access an internal server from the internal network what brings you to the router?


Posted by WebUser Ahmed Rasmy


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