on ASA relay-agent: # debug dhcprelay event debug dhcprelay packet OutputASADHCPD/RA: Relay msg received, fip=ANY, fport=0 on inside interfaceDHCP: Received a BOOTREQUEST from interface 4 (size = 364)DHCPD/RA: Binding successfully added to hash tableDHCPRA: relay binding created for clie...
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This document describes DHCP relay on Cisco ASA with the help of packet captures and debugs, and provides a configuration example.
Note: For DHCP VLAN Relay, the DHCP server will assign IP addresses of the same subnet to both VLAN 10 and VLAN 20, although the clients belong to different VLANs. The subnet of the addresses to be assigned is determined by the subnet that the default relay agent interface is in, so h...
Once I had configured my Microsoft DHCP server, I then needed to enable and configure the Cisco SG300 managed switch to be a DHCP relay. Here is how I did that: 1. From a browser, navigate to the Cisco SG300 switch IP address. Log in as a user with administrator privileges ...
使用dhcp relay server-ip命令来指定DHCP服务器的IP地址。例如: plaintext dhcp relay server-ip 192.168.254.2 这将告诉DHCP中继设备,所有来自该VLAN的DHCP请求都应该转发到IP地址为192.168.254.2的DHCP服务器上。 保存并应用配置: 完成配置后,记得保存配置并应用更改。在CLI中,可以使用以下命令来保存配置: plaintex...
Till now, all the configuration about the DHCP Relay is done. Let’s check if it does work. Step 7: Connect the PC to the ports belong to different VLANs, for example PC1 to port 1/0/4 and PC2 to 1/0/3. Then run the CMD, input the command:ipconfig/release and ipconfig/renew...
We configure a DHCP relay agent only on the interface that is directly connected to a local subnet. In this network, four interfaces are directly connected to the local subnets. These interfaces are the following. To configure the above-listed interfaces as DHCP relay agents, use the'ip helper...
DHCP provides network configuration parameters automatically such as IP addresses, DNS server details, and other parameters to the DHCP clients. FTD routed interface can act as DHCP server to provide the IP addresses to the clients. FTD provides the DHCP relay services to the internal cl...
A DHCP relay agent receives any DHCP broadcasts on the subnet and forwards them to the specified IP address on a different subnet. The DHCP Relay Agent is compliant with RFC 1542, "Clarifications and Extensions for the Bootstrap Protocol." For each IP network segment that contains DHCP ...