History for DHCP and DDNS
|
Feature |
Minimum Management Center |
Minimum Threat Defense |
Details |
|---|---|---|---|
|
Configure DHCP relay trusted interfaces from the management center web interface. |
20240203 |
Any |
You can now use the management center web interface to configure interfaces as trusted interfaces to preserve DHCP Option 82. If you do this, these settings override any existing FlexConfigs, although you should remove them. DHCP Option 82 is used by downstream switches and routers for DHCP snooping and IP Source Guard. Normally, if the threat defense DHCP relay agent receives a DHCP packet with Option 82 already set, but the giaddr field (which specifies the DHCP relay agent address that is set by the relay agent before it forwards the packet to the server) is set to 0, then threat defense will drop that packet by default. You can preserve Option 82 and forward the packet by identifying an interface as a trusted interface. New/modified screens: |
|
DHCPv6 Stateless Server |
20221213 |
7.3.0 |
The threat defense now supports a light DHCPv6 stateless server when using the DHCPv6 Prefix Delegation client. The threat defense provides other information such as the domain name to SLAAC clients when they send Information Request (IR) packets to the threat defense. The threat defense only accepts IR packets and does not assign addresses to the clients. New/modified screens: New/modified commands: show ipv6 dhcp |