D-Link DGS-1510-28X User Manual - Page 169
Default, Command Mode, Command Default Level, Usage Guideline, Example, ip dhcp relay information
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DGS-1510 Series Gigabit Ethernet SmartPro Switch CLI Reference Guide Default None. Command Mode Interface Configuration Mode. Command Default Level Level: 12. Usage Guideline This command is used to configure each interface's vendor defined string for option 82 information circuit ID. It is available for both physical port and port channel interface configuration. Example This example shows how to define vendor3 circuit-id of "aabbcc" in interface eth3/0/3. Switch# configure terminal Switch(config)# interface eth3/0/3 Switch(config-if)# ip dhcp relay information option format-type circuit-id vendor3 string aabbcc Switch(config-if)# 17-14 ip dhcp relay information trust-all This command is used to enable the DHCP relay agent to trust the IP DHCP relay information for all interfaces. Use the no command to disable the trusting on all interfaces. ip dhcp relay information trust-all no ip dhcp relay information trust-all Parameters None. Default By default, this option is disabled. Command Mode Global Configuration Mode. Command Default Level Level: 12. Usage Guideline When IP DHCP relay information trust option is enabled on an interface, the arriving packets with a GIADDR of 0 (this relay agent is the first relay of this DHCP request packet) but with relay agent information option present will be accepted. If it is not trusted, these packets will be dropped. When this command's setting is enabled, IP DHCP relay information is trusted for all interfaces. When this command's setting is disabled, the trust state is determined by the interface mode command ip dhcp relay information trusted. Verify settings by entering the show ip dhcp relay information trusted-sources command. Example 166
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