What am I missing? Did I do something wrong? You do not need the second NIC involved. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.
Create a free Team What is Teams? Learn more. Asked 1 year, 2 months ago. Active 1 year, 2 months ago. Viewed times. NIC 1: These 2 NICs are connected to 2 separate isolated networks. Improve this question. Bert I have not really dabbled in wireshark. When I have used it, it was all a little overwhelming when you get a sample. I am not sure how to use it. The switch will have. The IP helper setting is configured on the switch to point to What I don't understand is how will the server know what IP address to respond with?
Is there a setting I have to add to the scopes? Is it really as simple on the server-side as just configuring the scopes in the ranges you want and then waiting for the DHCP requests to roll in? Aren't DHCP requests layer 2? Doesn't the server just get a broadcast that says, "please provide an IP address for use by this MAC address"?
Simply put, as long as the IP helper is set correctly on that VLAN, and the server side is configured to provide addresses to that subnet it will work. DHCP is not layer 2, it is a layer three protocol. The client sends a request to the broadcast address which in this case the layer 3 switch will see and forward the request to the DHCP server on the client's behalf. You were right, broadcasts themselves cannot travel past the subnet where they're originated from but with the help of an L3 relay they do.
I work with organizations that have single DHCP servers that give out addresses to 10 vlans of course there are secondary servers, but I mean a single primary using IP Helper. The DHCP server looks at that address to determine which pool to use. A device on VLAN 30 needs an address. Here is an example of the network topology I am trying to create. There is the standard router - Netgear Genie.
Company - small business from home The "Guest" network would be for non business users who do not need access to the Company network and should not be able to see. Note that Netgear Genie is a home product and as such is off-topic here. On the switch, the ports that connect to hosts computers, servers must be set as access for the desired VLAN. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.
Create a free Team What is Teams? Learn more. Asked 4 years, 4 months ago. Active 3 years, 9 months ago.
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