Airlive POE-GSH2404M handleiding
Handleiding
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14.8 DHCP Snooping
For sake of security, the network administrator may need to record the IP address
of a user surfing the Internet and to confirm the correspondence between the IP address
obtained from DHCP Server and the host’s MAC address.
Switch can record the user’s IP address through the secure DHCP relay at the network
layer.
Switch can monitor DHCP messages and record the user’s IP address through
DHCP Snooping at the data link layer. In addition, private DHCP Server in the network may
lead to wrong IP address for the user. To ensure that users obtain IP addresses through
legal DHCP Server, the DHCP Snooping security mechanism divides the ports into Trust
Port and Untrust Port.
Trust Port directly or indirectly connects legal DHCP Server. It forwards the DHCP
messages received to ensure the correct IP address for DHCP Client. Untrust Port connects
illegal DHCP Server. DHCPACK and DHCPOFFER messages received from the DHCP
Server on the Untrust Port will be discarded to prevent incorrect IP addresses.
Typical Networking of DHCP Snooping
The following methods are used to obtain the IP address and user MAC address
from DHCP Server:
● Snooping the DHCPREQUEST message
● Snooping the DHCPACK message
14.8.1 Property
Enable DHCP Snooping
Instructions:
1. Click the “Security > DHCP Snooping > Property”. DHCP Snooping interface is
divided into global configuration and port configuration. Select the port to be
modified in the port configuration and “Edit” the details as follows:
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Productinformatie
| Merk | Airlive |
| Model | POE-GSH2404M |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 72641 MB |
