EnvisaLink 3 and proxy support

Information and support for EnvisaLink modules.

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pisatelj
Posts: 1
Joined: Wed Dec 28, 2016 7:57 am

EnvisaLink 3 and proxy support

Post by pisatelj »

Hi.
In my office I have a DSC with EnvisaLink 3. I would like to connect it to my corporate LAN, but the problem is that I have to configure EnvisaLink to use a proxy server to be able to communicate with the Internet.

Since I can't find any information how/where to configur ethe proxy server, I would like to know if the EnvisaLink3 supports the use of internet proxy?

Tnx in advance for your help.
K-Man
Posts: 145
Joined: Fri Jun 01, 2012 1:08 pm

Re: EnvisaLink 3 and proxy support

Post by K-Man »

Well, no, the Envisalink uses a proprietary protocol so there wouldn't be a proxy server out there that would support the protocol. You would need a proxy server that just forwarded at that IP level and that is what we call a gateway.

Proxies are just for well-known service like HTTP and FTP, not for other Internet based services.
Crikey
Posts: 90
Joined: Mon Aug 22, 2016 10:04 am

Re: EnvisaLink 3 and proxy support

Post by Crikey »

I'm admittedly being kind of nit-picky, here, but,...
K-Man wrote:Well, no, the Envisalink uses a proprietary protocol so there wouldn't be a proxy server out there that would support the protocol. You would need a proxy server that just forwarded at that IP level and that is what we call a gateway.
That's kinda sorta mostly correct.

Some systems include so-called "plug proxies" that simply ensure the TCP connections behave "sanely" or in the expected fashion. (Like a straight packet filter, they can also limit by source and destination IP address [range} and ports.)
K-Man wrote:Proxies are just for well-known service like HTTP and FTP, not for other Internet based services.
Yes, you will generally see true application proxies only for well-known services and protocols.

Jim
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