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gaffer
Posts: 1
Registered: ‎04-29-2008

Weird ping problem -

We have a Digital Video Recorder behind a customer-provided BEFSR41 (v2.0) router with a static IP (216.41....).  Ports 21, 23, 8234-8235 & 80 are forwarded to this DVR (192.168.2.200).  
 
The DVR is programmed to periodically transfer an image file to the customers off-site FTP server (maintained by 3rd party).  Because the DVR must see a successful ping response prior to sending the image file, the FTP server is setup to accept pings only from the static IP.  So here's the problem...
 
The FTP server is seeing the Ping requests, but instead of the origin being the static IP (216.41...), the origin is showing as the internal DVR address of 192.168.2.200, and is therefore being rejected. 
 
Any ideas? 
 
BTW, I can telnet into the DVR and then successfully create a FTP connection from the dos prompt.
Carrot
Posts: 3,271
Registered: ‎09-07-2006

Re: Weird ping problem -

Try unchecking the Block Wan Request under security tab ...click save settings ....
Also change the MTU size from auto to 1400 ...click save settings. .. Power cycle the network & if it works ....