3com S7906E Guide De Référence

 

4-1 

 

z 

DHCP snooping supports no link aggregation. If an Ethernet port is added into an aggregation 

group, DHCP snooping configuration on it will not take effect. When the port is removed from the 

group, DHCP snooping can take effect. 

z 

The DHCP snooping enabled switch does not work if it is between the DHCP relay agent and 

DHCP server, and it can work when it is between the DHCP client and relay agent or between the 

DHCP client and server. 

z 

The DHCP snooping enabled switch cannot be a DHCP server or DHCP relay agent. 

z 

You are not recommended to enable the DHCP client, and DHCP snooping on the same switch. 

Otherwise, DHCP snooping entries may fail to be generated, or the DHCP client may fail to obtain 

an IP address. 

 

undo dhcp-snooping 

System view 

2: System level 

None 

Use the dhcp-snooping command to enable DHCP snooping. 

Use the undo dhcp-snooping command to disable DHCP snooping. 

With DHCP snooping disabled, all ports can forward responses from any DHCP servers and does not 

record binding information about MAC addresses of DHCP clients and the obtained IP addresses. 

By default, DHCP snooping is disabled.