DHCP is an acronym used for Dynamic Host Configuration Protocol. This protocol utilizes a relay structure to connect with the DHCP server. It serves as proxy that is utilized by the DHCP broadcast messages. These broadcast messages are important to be routed to different sectors in the subnet. For the configuration of DHCP relay, the address of the DHCP server is essential so messages or data can be relayed.
The purpose of having DHCP relay agent is to permit DHCP clients and servers be placed on numerous networks. It is not difficult to set up DHCP in a definite network segment. Messages in the DHCP network are IP broadcast and this means that all computers on the sector can respond. All it takes is a single scope on a single DHCP server.
DHCP messages flow easily on a single subnet on a network. However, things get a bit complex when there are many subnets on the network. The reason why things are complicated is that by default, DHCP broadcast messages do not cross router boundaries.
This issue occurs when the Cisco Adaptive Security Appliance (ASA) does not forward the DHCP responses to the client.
The problem can occur in the presence of these Cisco bugs:
I'm reaching out to see if anyone knows how to configure a Cisco ASA to send RADIUS attribute 8 FRAMED-IP-ADDRESS to ISE. I would like this communicated to ISE so that it receives a VPN'd users IP address. Thanks.
Hi Guys, just want to double check with you. In FTD, I have 2 subnet and if I need to have intervlan for those 2 VLAN, do I still need to configure an identity NAT or any NAT?My target is doing intervlan routing between the 2 VLAN without any IP change.th...
Hi,I set up DVTI in EVE with 2 routers. HUB------SPOKE.Virtual-template is not showing up/down. Instead of up/up.Checked Phase1 and Phase2 parameters but not sure where I made a mistake.Attached diagram and configuration.Please take a look.
I tested using both Cisco ISE 2.4 (patch 9) and Cisco ISE 2.6 (patch 1). I have a user who successfully authenticated via RADIUS against ISE. Under ISE, Operations > Live Logs (and Live sessions), I see the user authenticated. After the accounting requ...