Configures and enables a trusted DHCP (Dynamic Host Configuration Protocol) server on the switch.
| vlan_name | Specifies the VLAN (Virtual LAN) name. |
| ip_address | Specifies the IP address of the trusted DHCP server. |
N/A.
If you configured trusted DHCP server, the switch forwards only DHCP packets from the trusted servers. The switch drops DHCP packets from other DHCP snooping-enabled ports.
You can configure a maximum of eight trusted DHCP servers on the switch.
If you configure a port as a trusted port, the switch assumes that all DHCP server packets on that port are valid.
To display the DHCP snooping configuration settings, including DHCP trusted servers if configured, use the following command:
show ip-security dhcp-snooping {vlan} vlan_nameTo display any violations that occur, including those on the DHCP trusted servers if configured, use the following command:
show ip-security dhcp-snooping violations {vlan} vlan_nameThe following command configures a trusted DHCP server on the switch:
configure trusted-servers vlan purple add server 10.10.10.10 trust-for dhcp-server
This command was first available in ExtremeXOS 11.6.
This command is available on the Summit X450-G2, X460-G2, X670-G2, X770, and ExtremeSwitching X440-G2, X590, X620, X690, X870 series switches.
Print
this page
Email this topic
Feedback
View PDF
Download EPUB