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4

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?


3

Here's a code I found and modified for this. $Merged = @() $Scopes = Get-DhcpServerv4Scope -ComputerName dc2008 #-ScopeId '10.1.230.0' Foreach ($Scope In $Scopes) { $IP_res = (Get-DhcpServerv4Reservation -ComputerName dc2008 -ScopeId $Scope.ScopeId) $IP_lease =(Get-DhcpServerv4Lease -ComputerName dc2008 -ScopeId $Scope.ScopeId) $IP_lease + ...


2

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.


2

You would need to create a static DNS entry on your DNS server for the ESXi host. It's not going to automatically create a DNS registration for you. Edit: It is possible to have an ESXi host perform a dynamic DNS registration (DDNS) if you go into the bowels of the ESXi command line and instruct it to... It's a strange request, as adding a static entry is ...


2

You want DHCPv6 if the network administrator should have control over who gets (which) IPv6 addresses, e.g. because they need to be in sync with AAAA DNS records, or if you don't want to tell the outside your MAC addresses (i.e. what hardware vendors you use), but don't want to use privacy extensions either, e.g. to still use permanent IPv6 addresses, or ...


1

this command show the DNS server on your net dig | grep SERVER: | awk -F# '{ print $1 }' | awk -F: '{ print $2 }' 172.17.0.1


1

Alright. I spent probably a total of five hours on this problem before arriving at an answer. @Sirex's suggestion to uninstall cloud-init was the clue. Essentially, cloud-init is a service built into most EC2 images (AMIs), including AMI Linux and CentOS. The system does lots of things (google it), and is probably useful for certain provisioning and ...


1

uninstall cloud-init. This drove me mental the first time :-) Still looking to find time to work out how to make cloud-init set the hostname as expected (from a tag or such) - not got that far myself yet.


1

If you got multiple subnet linked from a switch in exemple and your main router as your gateway CAN'T do ICMP Redirect, you better give the default gW, or route 0.0.0.0 to the router with the internet behind and to do static rule in the computer to make the computer talk to other router to go somewhere else (like another site) Only time I seen it can be ...


1

Actually, packet on switch A is getting drooped because you received a DHCP client packet with option82 on a untrusted port. This option-82 is inserted by the switchB. I think below should work - On, SwitchB - disable option 82 so that this does not insert these options. mark the interface-25 as trust to allow DHCP server packet to flow down to the. ...


1

DHCPv6 has many features not present in SLAAC. Most of those features are rarely needed. There is however one DHCPv6 feature, which would be useful in many cases. That is prefix delegation. If you are a network administrator at an ISP, that one feature may be enough for you to make it worthwhile to deploy a DHCPv6 server. If you are not working for an ISP, ...



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