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zi99y · 23-01-2011, 16:00

Just came across this thread when googling for this exact issue. I also have a D-Link DIR-615 from Virgin Media and use web services on the LAN and externally on the web.

To clarify, what he is referring to (unless I have got it completely wrong) is the ability to access a web service on a public IP from inside the LAN. For example if you have a MySQL server on 192.168.0.50 port 3306 and your routers public IP is 69.32.54.2, once you have forwarded port 3306 so you can access externally, "loopback" would allow you to use 69.32.54.2:3306 to access the server from within the LAN instead of 192.168.0.50 on the same network.

Anyway the reason I signed up to post here is that previously I had not been able to do this, but now it seems to work for me too. I don't know what the change might have been but I just did a factory reset on my router and there have never been any firmware updates to my knowledge. Let's just hope it stays this way.

However, I do notice that accessing sites/services this way is a fair bit slower, I guess it's because of the longer route to access it.

No idea if "loopback" is the correct term - I've heard it called that before but agree it's rather confusing as 127.0.0.1 is called the loopback.

23-01-2011, 16:00	#4
zi99y Inactive Join Date: Jan 2011 Posts: 1	Re: DIR615 Loopback Working (Strange) Just came across this thread when googling for this exact issue. I also have a D-Link DIR-615 from Virgin Media and use web services on the LAN and externally on the web. To clarify, what he is referring to (unless I have got it completely wrong) is the ability to access a web service on a public IP from inside the LAN. For example if you have a MySQL server on 192.168.0.50 port 3306 and your routers public IP is 69.32.54.2, once you have forwarded port 3306 so you can access externally, "loopback" would allow you to use 69.32.54.2:3306 to access the server from within the LAN instead of 192.168.0.50 on the same network. Anyway the reason I signed up to post here is that previously I had not been able to do this, but now it seems to work for me too. I don't know what the change might have been but I just did a factory reset on my router and there have never been any firmware updates to my knowledge. Let's just hope it stays this way. However, I do notice that accessing sites/services this way is a fair bit slower, I guess it's because of the longer route to access it. No idea if "loopback" is the correct term - I've heard it called that before but agree it's rather confusing as 127.0.0.1 is called the loopback.