D-Link Forums
		The Graveyard - Products No Longer Supported => D-Link NetDefend Firewalls => Topic started by: tanvignr on February 28, 2010, 07:44:12 PM
		
			
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				i have a 2821 router connected to my isp. in the back of 2821 i have DFL-260.my local users r connected through DFL-260.the problem is that i cant ping the 2821 from the local user through DFL-260. if there is any tutorial then pls provide me. i have some user manual which is not enough. thanks in advanceeeeeeee
 i also cant ping from 2821 to DFL-260.
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				What are the IPs of EVERY device in question?
			
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				My local lan-172.16.7.0/24
 DFL lan ip: 172.16.7.5
 DFL wan ip: 200.200.200.2
 Router ip : 200.200.200.1
 ISP ip: 10.0.22.25
 GW: 10.0.22.26
 FTP server: 10.10.50.1 (i have to access the ftp server through my local lan. i have to access the server through the ISP)
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				If you hook directly to the router with a static IP can you ping the router?
 
 Can your DFL itself ping the router?
 
 Triple NAT'ing?
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				To make LAN > DFL > 2821, you should have NAT rule for ping (with ICMP service)
 
 To make 2821 > DFL ping, you should make rule allow wan/wan_gw core/wan_ip ping-inbound