Dell S3100 Command Line Reference Guide for the Series 9.100.0 - Page 1229
Secure DHCP Commands, clear ip dhcp snooping, ip dhcp relay
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Secure DHCP Commands DHCP as defined by RFC 2131 provides no authentication or security mechanisms. Secure DHCP is a suite of features that protects networks that use dynamic address allocation from spoofing and attacks. clear ip dhcp snooping Clear the DHCP binding table. Syntax clear ip dhcp snooping binding Defaults none Command Modes EXEC Privilege Command History This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking OS Command Line Reference Guide. Version Description 9.8(2.0) 9.8(1.0) 9.8(0.0P5) 9.8(0.0P2) 9.7(0.0) 9.2(1.0) 9.0.2.0 8.3.19.0 8.3.11.1 8.3.7.0 7.8.1.0 Introduced on the S3100 series. Introduced on the Z9100-ON. Introduced on the S4048-ON. Introduced on the S3048-ON. Introduced on the S6000-ON. Introduced on the Z9500. Introduced on the S6000. Introduced on the S4820T. Introduced on the Z9000. Introduced on the S4810. Introduced on the C-Series and S-Series. Related Commands • show ip dhcp snooping - display the contents of the DHCP binding table. ip dhcp relay Enable Option 82. Syntax Parameters ip dhcp relay information-option [trust-downstream | vrf] trust-downstream Configure the system to trust Option 82 when it is received from the previous-hop router. vrf Enter the keyword vrf to include VRF related information in the Option 82. This configuration enables the relay agent to include VRF related information when it forwards the broadcasts from client to DHCP server. Defaults Disabled. Command Modes CONFIGURATION Command History This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking OS Command Line Reference Guide. Version Description 9.8(2.0) 9.8(1.0) Introduced on the S3100 series. Introduced on the Z9100-ON. Security 1229
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