A vendor has asked me to assign an IP to a port. He is installing lighting controls on one of our campus's. So I had already set some ports aside for him, and assigned the ports our building management VLAN 22. I do not seem to understand what he is asking me. I have learned from my Switching Technologies class that a physical port on a switch cannot have an IP Address. I kind of get that an SVI can be created, and that it has an IP right? I am wondering if the Vendor is actually asking for an unassigned IP outside of the DHCP pool for the VLAN 22 that is already assigned to the port, or if I am missing some fundamental understanding of wht it means when someone says I need an IP assigned to that port. I have heard the statement more than once.
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What does it mean when someone asked to have an IP assigned to a port?
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@LARRY-MILLER-2 said:
In my previous post I think I misstated my question when I said. "I am wondering if the Vendor is actually asking for an unassigned IP outside of the DHCP pool for the VLAN 22 that is already assigned to the port, or if I am missing some fundamental understanding of what it means when someone says I need an IP assigned to that port. "I guess I should have asked: "I am wondering if the Vendor is actually asking for an excluded IP outside of the DHCP pool that was assigned to our VLAN 22, that I already assigned to the port, or if I am missing some fundamental understanding of what it means when someone says I need an IP assigned to that port. "
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@LARRY-MILLER-2 Dang it
That is to say an excluded IP, outside of the DHCP pool, of the IP range associated with that VLAN22.Wow! I hope I am not making my description of what I suspect this vendor is asking for more obscure instead of clearer.
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This post is deleted!
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Larry,
That's a tough question. Either way you look at it, they are probably using the wrong term for what they are asking for. That's not unusual when you deal with non-networking personnel (in your case lighting). If you want to go super-literal, you actually can assign an IP to a switch port (assuming you have a Layer 3 capable switch). All you have to do is issue the "no switchport" command first. That effectively converts the switch port to a Layer 3 port like on a router. I seriously doubt that is what they are after, though. I would have to ask them for more clarification. Based on the information you provided, I would assume they wanted one of two things:
They want a static IP for their controller. This is the most likely. They probably want a static IP for their device and they are simply saying "the port" because that is how they think of it. They may even be asking for an external IP which is not uncommon if they are going to be remotely managing the system.
They are asking for a default gateway so their system can get out to the internet. This would be the SVI model you mentioned. You would just take the VLAN22 interface and give it an IP. DHCP may or may not be required.
Either way, you'll have to get some more clarification on what they mean.
Hope that helps,
Don Pezet
Edutainer, ITProTV -
@Don-Pezet Thank You Don, exactly the advice I needed. Your the Best!
