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Configuration Guide - IP Service

S1720, S2700, S5700, and S6720 V200R012(C00 and C20)

This document describes the configurations of IP Service, including IP address, ARP, DHCP, DHCP policy VLAN, DNS, mDNS gateway, mDNS relay, UDP Helper, IP performance optimization, IPv6, DHCPv6, IPv6 DNS, IPv6 over IPv4 tunnel, and IPv4 over IPv6 tunnel.
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Enabling the BOOTP Client Function

Enabling the BOOTP Client Function


After an interface is enabled with the BOOTP client function, the interface can obtain network parameters including the IP address from the DHCP server.

If the allocated IP address and IP addresses of other interfaces are on the same network segment, the interface does not use the allocated IP address and does not re-apply for an IP address. To allow the interface to re-apply for an IP address, run the shutdown and then the undo shutdown commands on the interface. Alternatively, run the undo ip address bootp-alloc and then the ip address bootp-alloc commands on the interface.


  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number [.subinterface-number ]

    The interface view or sub-interface view is displayed.


    Only the S5720EI, S5720HI, S5730HI, S6720EI, S6720HI, and S6720S-EI support sub-interfaces.

  3. (Optional) On an Ethernet interface, run undo portswitch

    The interface is switched to Layer 3 mode.

    By default, an Ethernet interface works in Layer 2 mode.

    Only the S5720EI, S5720HI, S5730HI, S6720EI, S6720HI, and S6720S-EI support switching between Layer 2 and Layer 3 modes.

  4. Run ip address bootp-alloc

    The BOOTP client function is enabled.

    By default, the BOOTP client function is disabled.

Updated: 2018-12-24

Document ID: EDOC1100038342

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