H3C S3600 Series Operation Manual

Also see for H3C S3600 Series: Datasheet Installation manual Command manual Operation manual Command manual

Contents

H3C S3600 Series Operation Manual Manual pdf 12 page image

Operation Manual – DHCPH3C S3600 Series Ethernet Switches-Release 1510 Chapter 2 DHCP Server Configuration2-5Table 2-2 Enable DHCPOperation Command DescriptionEnter system view system-view —Enable DHCP dhcp enable RequiredBy default, DHCP is enabledNote:To improve security and avoid malicious attack to the unused SOCKETs, S3600Ethernet switches provide the following functions:z UDP 67 and UDP 68 ports used by DHCP are enabled only when DHCP is enabled.z UDP 67 and UDP 68 ports are disabled when DHCP is disabled.The corresponding implementation is as follows:z After DHCP is enabled by executing the dhcp enable command, if the DHCP serverand DHCP relay functions are not configured, UDP 67 and UDP 68 ports are keptdisabled; if the DHCP server / DHCP relay function is configured, UDP 67 and UDP68 ports are enabled.z After DHCP is disabled by executing the undo dhcp enable command, even if theDHCP server and DHCP relay functions are configured, UDP 67 and UDP 68 portswill be disabled.2.2.3 Configuring Global Address Pool Mode on Interface(s)You can configure the global address pool mode on the specified or all interfaces of aDHCP server. After that, when the DHCP server receives DHCP packets from DHCPclients through these interfaces, it assigns IP addresses in the global address pool tothe DHCP clients.