12/17/2023 0 Comments Ip broadcaster window![]() That Craig, played hours and hours of music. I didn’t have a Walkman at least not until they came out Spark! Pro series – 1st July 2022 Spiceworks Originals.But even before that, there was a time when music on the go was not readily available. While it feels almost like another lifetime, I do recall when music wasn't available on my phone to listen to. Snap! SessionManager malware, Chrome pwds, PowerShell, moon base, Starlink, etc Spiceworks Originals.But today we have a lot of updates from various vendors including Microsoft, QNAP (seems to be a lot here) and the. Apologies for not posting last week, the weekend got ahead of me and didn't have time to post. Good morning and welcome to today's briefing. The SOC Briefing for July 1st - Summer here we go Security.Maybe someone can provide some drawing of this? I mean on the switch level I separate them by vlan, but on the dhcp side there is nothing to tell it which vlan to go too? do you see my point? how does it know which IP to get? what is it telling it not to get the 10.1.4.x IP instead of the 10.1.6.x IP? There must be a setting somewhere that I'm not aware of. All dhcp server goes to 10.1.1.5 (windows dhcp server). You say it got nothing to do with vlan correct? Remember for each port we plug in a phone first then from the phone we plug in a computer. So say eth 0/2 was on this default network and you plugged your laptop in, then when the DHCP server receives the request in the form of a broadcast it knows to hand out an IP on it's own subnet. The default scope will be whatever network your server is on, which I think you said it was the 10.1.1.0/24 network. You have defined the scope for that network, so it can only request from that scope. So off it goes with the request to the DHCP server and since your subnet mask is 255.255.255.0 (or /24) then the network part is 10.1.6. So you plug a cable into this port that's connected to your laptop which has dhcp enabled on its nic card. And you have defined vlan 6 interface on the 10.1.6.0/24 network. So for example in your scenario:Įth port 0/1 is on vlan 6. Ok, it's nothing got to do with Vlan tags, it's to do with the net id of the requesting network/subnet. I understand now that you just want to know how it works. Find some good reads on google with the phrase DHCP relay helper or DHCP relay agent.Īhh thats good it's working ok. ![]() I read it a few different sides, I'm playing with Summit Extreme, CISCO, Adtran, and Sonicwall. Since the relay slapped its IP on it to be responded to, the DHCP server sends the DHCP-ACK directly back to the relay and the relay passes it to the client's MAC address. The DHCP server sees that the relay slapped its IP address on it and digs around in that IP scope for something matching the MAC and hands off the next available address if it doesn't have a reserved IP already. When the switch gets a broadcast on a VLAN, the DHCP relay helper on that VLAN picks it up slaps its ip address on it and relays it as a unicast to your DHCP server as it is set along with the MAC address of the client. ![]() The switch has a DHCP relay helper enabled and set to point to your DHCP server. The switch or your router has an IP on each subnet/VLAN. You have VLANs A B C D, each with subnets A B C D. The DHCP relay IP is what determines what pool gets handed out. It's actually pretty simple, the windows DHCP server has no idea about the VLANs. Is it by the vlan tag? meaning if i tag vlan 6 on the port it will pick up the 10.1.6.x IP? but in windows how does it know the scope is 10.1.6.x? is it by the option 156? When it get to the DHCP server how does windows DHCP sever know which IP to give out? Is it controlled by the switch? Here is a picture of the windows dhcp. we are putting in vlan 6 which is shoretel.As you can see all three of this are going to the windows dhcp server 10.1.1.5. As you can see we have vlan 1 which is default = data.
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