S310 V600R022C10 Configuration Guide - IP Addresses and Services
Example for Configuring a DHCPv4 Server to Assign PXE Startup Parameters to a Client
Networking Requirements
The Preboot Execution Environment (PXE) allows a client to boot an operating system using a startup file downloaded from a TFTP server.
On the network shown in Figure 6-9, a PXE client and a DHCPv4 server reside on the same network segment. The PXE client needs to obtain an IP address, TFTP server address (Option 66), and startup file name (Option 67) from the DHCPv4 server.
Procedure
- Enable DHCP on DeviceA.
<HUAWEI> system-view [HUAWEI] sysname DeviceA [DeviceA] dhcp enable
- Create VLAN 10 and add GE 1/0/1 to it.
[DeviceA] vlan 10 [DeviceA-vlan10] quit [DeviceA] interface ge 1/0/1 [DeviceA-GE1/0/1] port link-type trunk [DeviceA-GE1/0/1] port trunk allow-pass vlan 10 [DeviceA-GE1/0/1] quit
- Configure an IP address for a VLANIF interface.
[DeviceA] interface vlanif 10 [DeviceA-Vlanif10] ip address 192.168.1.1 24
- Configure the DHCPv4 server function on VLANIF 10.
[DeviceA-Vlanif10] dhcp select interface
- Configure Option 66 and Option 67.
[DeviceA-Vlanif10] dhcp server option 66 ip-address 192.168.2.1 [DeviceA-Vlanif10] dhcp server option 67 ascii boot\x64\wdsnbp.com [DeviceA-Vlanif10] dhcp server next-server 192.168.2.1
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In this example, the TFTP server and PXE client are on different network segments. Therefore, you need to run the dhcp server next-server command to specify the IP address of the TFTP server from which the PXE client downloads the startup file.
If the TFTP server and PXE client are on the same network segment, run the dhcp server excluded-ip-address command to exclude the TFTP server address from the address pool.
- Verify the configuration.
# Run the display this command on VLANIF 10 of DeviceA to check the DHCPv4 server configuration.
[DeviceA-Vlanif10] display this # interface Vlanif10 ipv6 enable ip address 192.168.1.1 255.255.255.0 ipv6 address auto link-local dhcp select interface dhcp server next-server 192.168.2.1 dhcp server option 66 ip-address 192.168.2.1 dhcp server option 67 ascii boot\x64\wdsnbp.com # return
# Run the display ip pool interface vlanif10 command on VLANIF 10 of DeviceA to check the option configuration and the allocation of addresses in the interface address pool.
[DeviceA-Vlanif10] display ip pool interface vlanif10 Pool-name : Vlanif10 Pool-No : 0 Lease : 1 Days 0 Hours 0 Minutes Next-server : 192.168.2.1 Domain-name : - Option-code : 66 Option-subcode : -- Option-type : ip-address Option-value : 192.168.2.1 Option-code : 67 Option-subcode : -- Option-type : ascii Option-value : boot\x64\wdsnbp.com DNS-server0 : - NBNS-server0 : - Netbios-type : - Position : Interface Status : Unlocked Gateway-0 : 192.168.1.1 Network : 192.168.1.0 Mask : 255.255.255.0 VPN instance : -- Logging : Disable Conflicted address recycle interval: - Address Statistic: Total :253 Used :1 Idle :251 Expired :0 Conflict :0 Disabled :1 ------------------------------------------------------------------------------- Network section Start End Total Used Idle(Expired) Conflict Disabled ------------------------------------------------------------------------------- 192.168.1.1 192.168.1.254 253 1 251(0) 0 1 -------------------------------------------------------------------------------
Configuration Scripts
# DeviceA
# sysname DeviceA # vlan batch 10 # dhcp enable # interface Vlanif10 ip address 192.168.1.1 255.255.255.0 dhcp select interface dhcp server next-server 192.168.2.1 dhcp server option 66 ip-address 192.168.2.1 dhcp server option 67 ascii boot\x64\wdsnbp.com # interface GE1/0/1 port link-type trunk port trunk allow-pass vlan 10 # return