Posted on in networking
For network engineers juggling complex configurations and security concerns, DHCP Option 82 emerges as a valuable tool. Let's delve into its purpose, functionality, and benefits in network deployments.
The Dynamic Host Configuration Protocol (DHCP) automates IP address assignment to devices on a network. However, in …
Posted on in Networking
Imagine a bustling office with hundreds of employees, each needing a unique identification badge to access various resources. In the world of IP networks, DHCP (Dynamic Host Configuration Protocol) plays a similar role. It automates the assignment of IP addresses, acting as the ID card dispenser for devices on a …
Posted on in Networking
If you're like me, you've probably run into situations where it makes sense to run a DHCP server on your router. You may have noticed that a reboot of the router causes the DHCP bindings to be lost. When this happens, all of your hosts will likely receive new DHCP …
Posted on in Networking
You might have a situation where you have multiple network segments utilizing <acronym title="Dynamic Host Configuration Protocol">DHCP</acronym> to assign IP addresses, name servers, etc. DHCP clients use network broadcasts to alert a DHCP server to their presence. Once a request for an address has been made, the …
Posted on in Networking
If you are using your Cisco Catalyst switches to
insert DHCP Option 82 information
and you are also using your Cisco routers as DHCP relay-agents (via ip helper-address),
you'll notice right away that your Option 82 enabled DHCP requests are not being
forwarded by your routers.
As a security measure …
Posted on in Networking
If you're interested in DHCP Option 82 in your Cisco Catalyst-based network, you'll be happy to know that the configuration can be summed up in 4 easy steps.
ip dhcp snooping. Although we're only turning this on to get …
