- Joined
- Jul 21, 2015
- Messages
- 501 (0.16/day)
So I know this wouldn't be anything even remotely close to best practice.. But I really haven't done anything with VLAN before and I had an idea. I have a PoE switch, which is connected to a big (rack mount) UPS that I am going to upgrade with marine deep cycle batteries to keep my network and a scanner streaming setup running for hours during power failure. The only hiccup I have is the DSL modem. Due to the way the place is wired, the phone line comes into the kitchen first - so I set the modem there to get the best DSL connection. I have a Belkin 12V UPS that I could use but I'd rather not have that big box sitting on my kitchen counter. I thought of using a PoE splitter, but then it dawned on me that it goes right into the firewall, so it won't get PoE from the switch.
Now since this is a managed switch (Nortel Baystack 5520) I was wondering if I could "VLAN" two of the ports to pass data through verbatim, isolated from the other ports, basically allowing the switch to function as a midspan PoE injector between the modem and firewall. The modem is in bridge mode, it gives a public IP. Would this be possible without potentially exposing the LAN to the WAN? Or should I just buy a midspan injector? I like doing things the tinkery way if possible lol!
Now since this is a managed switch (Nortel Baystack 5520) I was wondering if I could "VLAN" two of the ports to pass data through verbatim, isolated from the other ports, basically allowing the switch to function as a midspan PoE injector between the modem and firewall. The modem is in bridge mode, it gives a public IP. Would this be possible without potentially exposing the LAN to the WAN? Or should I just buy a midspan injector? I like doing things the tinkery way if possible lol!
