No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search


To have a better experience, please upgrade your IE browser.


Configuration Guide - IP Service

CloudEngine 12800 and 12800E V200R005C00

This document describes the configurations of IP Service, including IP address, ARP, DHCP, DNS, IP performance optimization, IPv6, DHCPv6, and IPv6 DNS.

Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Licensing Requirements and Limitations for DHCP

Licensing Requirements and Limitations for DHCP

Involved Network Elements

Other network elements are not required.

Licensing Requirements

DHCP is a basic feature of a switch and is not under license control.

Version Requirements

Table 3-7 Products and minimum version supporting DHCP


Minimum Version Required









Feature Limitations

When deploying DHCP on a switch, pay attention to the following points:
  • In V200R002C50 and later versions, a switch as a DHCP server can allocate IP addresses on the same network segment as the secondary IP address of an interface. When the address pool corresponding to the primary IP address has no available IP addresses, the switch searches the address pools corresponding to secondary IP addresses for available IP addresses, starting from lower IP addresses.

  • In V200R005C00 and later versions, a DHCP server assigns IP addresses to DHCP clients with the same MAC address in different VLANs.
  • When configuring the range of dynamically assignable IP addresses in the global address pool, ensure that the range is the same as the network segment on which the DHCP server interface address or the DHCP relay agent interface address resides. This avoids incorrect assignment of IP addresses.

  • The maximum number of times that a DHCP message is forwarded through DHCP relay agents between a DHCP client and a DHCP server cannot be greater than 16; otherwise, the message is discarded.

  • In a VXLAN scenario, DHCP relay and DHCP snooping cannot be configured together on the same network-side interface.

  • When configuring the DHCP server function on an M-LAG, you must configure the function on both member switches in the M-LAG, and IP addresses in the address pools on the two switches cannot overlap.

  • When configuring the DHCP relay function on an M-LAG, you must configure the function on both member switches in the M-LAG.

Updated: 2019-04-18

Document ID: EDOC1100039535

Views: 47723

Downloads: 27

Average rating:
This Document Applies to these Products

Related Version

Related Documents

Previous Next