Dhcp Snooping Setup - ZyXEL Communications XGS2220 Series User Manual

Table 280 SECURITY > IPv4 Source Guard > DHCP Snooping > DHCP Snp. Status (continued)
LABEL
Invalid Interfaces This field displays the number of bindings the Switch has ignored because the port number
Parse Failures
Expired Leases
Unsupported
VLANs

74.3 DHCP Snooping Setup

Use this screen to enable DHCP snooping on the Switch (not on specific VLAN), specify the VLAN where
the default DHCP server is located, and configure the DHCP snooping database. The DHCP snooping
database stores the current bindings on a secure, external TFTP server so that they are still available after
a restart.
To open this screen, click SECURITY > IPv4 Source Guard > DHCP Snooping > DHCP Snp. Setup.
Note: The input string of any field in this screen should not contain [ ? ], [ | ], [ ' ], [ " ], or [ , ].
Figure 360 SECURITY > IPv4 Source Guard > DHCP Snooping > DHCP Snp. Setup
Chapter 74 DHCP Snooping
DESCRIPTION
was a trusted interface or does not exist anymore.
This field displays the number of bindings the Switch has ignored because the Switch was
unable to understand the binding in the DHCP binding database.
This field displays the number of bindings the Switch has ignored because the lease time
had already expired.
This field displays the number of bindings the Switch has ignored because the VLAN ID does
not exist anymore.
XGS2220 Series User's Guide
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