Onboard Dhcp; Configuring Dhcp Server Using Cli - Symbol WS5000 Series System Reference Manual

12-2
WS5000 Series Switch System Reference Guide

12.1 Onboard DHCP

Dynamic Host Configuration Protocol (DHCP) automatically assigns IP addresses to computers using TCP/IP. A
DHCP server assigns addresses to computers configured as DHCP clients.
A feature of DHCP (Option 60) enables a DHCP server to recognize a DHCP client's equipment identifier, and
assign the device an IP drawn from an equipment-specific set of addresses (an IP pool). DHCP servers that
respond to Option 60 should only use DHCP Option 43 to return vendor-specific information to the DHCP client.
WS5100 VPN consists of two DHCP servers:
Onboard DHCP server—This server is on the box and provides public IP address to the VPN client.
VPN DHCP server —This server resides inside the VPN server and provides private IP address to the VPN
client.The VPN server can relay DHCP requests to an external DHCP server or use its own DHCP server.
Note You can configure the internal DHCP server on the box to provide public IP
addresses to VPN clients. The server uses relay to transfer virtual IP addresses to VPN
clients.
A device on the untrusted side of the network receives a public IP address from the onboard DHCP server. After
the server authenticates the device, it retrieves a virtual IP address using DHCP relay from the external DHCP
server or from the VPN DHCP server. When the device sends and receives packets, the virtual IP address is
"wrapped around" the public address to enforce secure transmission.

12.1.1 Configuring DHCP Server using CLI

You must run all DHCP CLI commands in the
and describes the DHCP commands:
Table 12.1 DHCP CLI Commands
Command
set dhcpsrv <enable | disable>
Configuration.Ethernet.[N]
Description
Enables or disables the WS5100-VPN's internal DHCP
server (for this NIC).
context. Table 12.1 lists