Dynamic Host Configuration Protocol (DHCP) | 91DHCP Client on a Management InterfaceThe following conditions apply on a management interface that operates as a DHCP client:• The management default route is added with the gateway as the router IP address received in theDHCP ACK packet. This is required to send and receive traffic to and from other subnets on theexternal network. This route is added irrespective both when the DHCP client and server are in thesame or different subnets.The management default route is deleted if the management IP address is released like other manage-ment routes added by the DHCP client.• If "ip route for 0.0.0.0" is present or added later, it will take precedence.• Management routes added by a DHCP client are displayed with Route Source as DHCP in show ipmanagement route and show ip management-route dynamic command output.• If a static IP route configured with the ip route command replaces a management route added by theDHCP client and then if the statically-configured IP route is removed (no ip route command), themanagement route added by DHCP is automatically re-installed. The management routes added by theDHCP client must be manually deleted.• If a management route added by the DHCP client is removed or replaced by the samestatically-configured management route, it is not re-installed unless you release the DHCP IP addressand renew it on the management interface.• A management route added by the DHCP client has higher precedence over the samestatically-configured management route. If a dynamically-acquired management route added by theDHCP client overwrites a static management route, the static route is not removed from the runningconfiguration.• Management routes added by the DHCP client are not added to the running configuration.Note: Management routes added by the DHCP client include the specific routes to reach a DHCP serverin a different subnet and the default management route.
