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Your dhcpd.conf config is valid. I tested it myself on isc-dhcp 4.2.4 and the subclass'd MAC addresses got the l2vpn_user pool addresses. I'd recommend running dhcpd in the forground with debug logging enabled (-f and -d flags) and doing some sanity checks based on what is logged. Since your config is valid and works in my testing, it is likely there is ...


If you disable ddns update-optimization, it should remove the records when the lease ages out. [1] 1: https://kb.isc.org/article/AA-01091/0/ISC-DHCP-support-for-Standard-DDNS.html


According to RFC 3315, Section 5.1, all DHCPv6 server listen for the same multicast addresses, namely ff02::1:2 (link-scope, includes DHCPv6 relays) and ff05::1:3 (site-scope, excludes DHCPv6 relays). Depending on the situation, these pre-defined addresses may suffice as "IPv6 server address" and hence don't need to be listed as DHCPv6 option in the packet. ...


Have you added the boot images?? (boot.wim) Your DHCP server is providing IP but not the PXE information (TFTP server IP and NBP name) then you "need" the options: [x] 66 Boot Server host name where is the IP address of the NIC that connects to the deployment network [x] 67 BootFile Name boot\x64\wdsnbp.com of-course the ...


Strictly speaking, yes. The client hardware address is a data field that will be in both the DHCPDISCOVER message (which won't leave the LAN) and the DHCPREQUEST message, which will be relayed by the relay agent. Why do you ask?


As long as the routing is in place such that the DHCP relay to Router 0 actually traverses Router 2 & 1 to Router 0 and back, then yes, it will work just fine. It's no different than VLANs across Layer 3 switches with IP Forwarding enabled. You could even think of it as getting a DHCP address across a WAN link from a remote DHCP server if you'd like.


It is possible, as outlined in this technet article. http://technet.microsoft.com/en-us/library/dn495425.aspx This guide describes the steps for migrating existing DHCP server settings to a server that is running Windows Server 2012 R2. Migration documentation and tools ease the migration of server role settings and data from an existing server to ...

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