ZyXEL Communications IES-1248-51 Guia do Utilizador descarregar pdf (Página 70)

IES-1248-51V Support Notes

DHCP Relay Option 82 Application

ISP may want to limit the number of IP address or deliver some specific IP addresses

according to certain DSL port, VLAN ID and option 82 string. They can easily to

achieve this with DHCP Relay Option 82 feature and a DHCP server supporting

Option 82 function.

to set up DHCP Relay Option 82 Environment

Here, we will set up an environment to allow a PC get DHCP IP address in specific IP

How

DHCP

Server

Network

Ethernet Port

Port 25

CPE

DHCP Client

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ZyXEL Communications IES-1248-51 Guia do Utilizador Página 70