Configure Storing of DHCP Snooping Bound Entries

The DHCP Snooping function supports the auto or manual storing to the specified path of the bound entries. If the device restarts, the stored bound entries can be restored, avoiding affecting the communication because the bound entries are lost.

The specified path can be device FLASH, FTP server or TFTP server.

Configuration Condition

Before configuring the storing path of the bound entries as the FTP/TFTP server, first complete the following task:

1. FTP/TFTP server, enable the FTP/TFTP server function normally
2. The device can ping the IP address of the FTP/TFTP server.

Configure Auto Storing of DHCP Snooping Bound Entries

DHCP Snooping bound entries can be configured as the auto storing mode, that is, system automatically stores the bound entries regularly.

The system periodically refreshes the bound entries, detecting whether the bound entries are updated. If yes, we need to store the updated entries to the specified path after the storing delay arrives. The storing delay can prevent and control the frequent storing of the system because the entries are updated continuously.

Table 7-9 Configure the auto storing of DHCP Snooping bound entries

Configure Manual Storing of DHCP Snooping Bound Entries

DHCP Snooping bound entries can be configured as the manual storing mode, that is, execute the store command to complete the storing of the bound entries.

Table 7-10 Configure the manual storing of the DHCP Snooping bound entries