H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 271)

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Figure 229 DHCP relay agent configuration page
3. Enable DHCP and configure advanced DHCP relay agent parameters as described in Table 79 .
4. Click Apply.
Table 79 Configuration items
Item Description
DHCP Service Enable or disable global DHCP.
Unauthorized Server
Detect
Enable or disable unauthorized DHCP server detection.
There are unauthorized DHCP servers on networks, which reply DHCP clients with
wrong IP addresses.
With this feature enabled, upon receiving a DHCP request, the DHCP relay agent will
record the IP address of any DHCP server that assigned an IP address to the DHCP
client and the receiving interface. The administrator can use this information to check
out DHCP unauthorized servers. The device puts a record once for each DHCP
server. The administrator needs to find unauthorized DHCP servers from the log
information. After the information of recorded DHCP servers is cleared, the relay
agent will re-record server information following this mechanism.