Actually our network admin is an outside consultant that I have butted heads with on more than one occasion. But he can be quite reasonable on new IP addresses.
I can see how the NAT issue can be a thing. Two things though. One, I suspect that many of these people are doing this with internal addresses also. Two, perhaps addresses exposed to the outside should start becoming IPV6? I believe this is something our consultant will try to hold off as long as he can.
-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Jim Oberholtzer
Sent: Tuesday, May 28, 2019 11:45 AM
To: 'Midrange Systems Technical Discussion' <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: Why adulterate ports vs using an additional IP address? Was: Ports IP specific?
Many shops don't have the flexibility to assign IP addresses that you have.
That's because, a) the network is constrained in some way, b) they don't have network admin's that are local and understand the needs, c) regulatory requirements.
Hence, not everyone will simply put up a new address. In our case if we wish to expose it to the web, we would run out of NAT addresses in a real hurry, so more ports on the same address it is.
--
Jim Oberholtzer
Agile Technology Architects
-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Rob Berendt
Sent: Tuesday, May 28, 2019 10:23 AM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: Why adulterate ports vs using an additional IP address? Was: Ports IP specific?
I hear of people using off the wall ports to support multiple listeners.
I'm not talking about anything difficult to bind specific, I'm just referring to the easy stuff, like TCP/IP.
Why would anyone set up a web server on port 80, another one on port xx, another one on port yy, etc? Instead, why not just supply multiple IP addresses to the box? Doesn't using multiple port numbers like this cause one to either use some redirects, or have the end user have to specify the port in the url, like
http://myserver.com:xx?
Is it because it appears to be a drudgery to talk to the network guy and get another IP address? Or why else?
Rob Berendt
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