Dhcp Snooping Configure - ZyXEL Communications GS3700 Series User Manual

Table 124 I P Source Guard > I Pv4 Source Guard Set up > DHCP Snooping ( cont inued)
LABEL
Failed writ es
Dat abase det ail
First successful access
Last ignored bindings
count ers
Binding collisions
I nvalid int erfaces
Parse failures
Expired leases
Unsupport ed vlans
Last ignored t im e
Tot al ignored bindings
count ers
Binding collisions
I nvalid int erfaces
Parse failures
Expired leases
Unsupport ed vlans

25.6 DHCP Snooping Configure

Use t his screen t o enable DHCP snooping on t he Swit ch ( not on specific VLAN) , specify t he VLAN
where t he default DHCP server is locat ed, and configure t he DHCP snooping dat abase. The DHCP
snooping dat abase st ores t he current bindings on a secure, ext ernal TFTP server so t hat t hey are
st ill available aft er a rest art . To open t his screen, click Adva n ce d Applica t ion > I P Sou r ce Gua r d
> I Pv4 Sou r ce Gu a r d Se t u p > D H CP Snoopin g > Con figu r e .
Chapter 25 IP Source Guard
DESCRIPTION
This field displays t he num ber of t im es t he Swit ch was unable t o updat e t he
bindings in t he DHCP snooping dat abase.
This field displays t he first t im e t he Swit ch accessed t he DHCP snooping dat abase
for any reason.
This sect ion displays t he num ber of t im es and t he reasons t he Swit ch ignored
bindings t he last t im e it read bindings from t he DHCP binding dat abase. You can
clear t hese count ers by rest art ing t he Swit ch or using CLI com m ands. See t he
Et hernet Swit ch CLI Reference Guide.
This field displays t he num ber of bindings t he Swit ch ignored because t he Swit ch
already had a binding wit h t he sam e MAC address and VLAN I D.
This field displays t he num ber of bindings t he Swit ch ignored because t he port
num ber was a t rust ed int erface or does not exist anym ore.
This field displays t he num ber of bindings t he Swit ch ignored because t he Swit ch
was unable t o underst and t he binding in t he DHCP binding dat abase.
This field displays t he num ber of bindings t he Swit ch ignored because t he lease
t im e had already expired.
This field displays t he num ber of bindings t he Swit ch ignored because t he VLAN I D
does not exist anym ore.
This field displays t he last t im e t he Swit ch ignored any bindings for any reason
from t he DHCP binding dat abase.
This sect ion displays t he reasons t he Swit ch has ignored bindings any t im e it read
bindings from t he DHCP binding dat abase. You can clear t hese count ers by
rest art ing t he Swit ch or using CLI com m ands. See t he Et hernet Swit ch CLI
Reference Guide.
This field displays t he num ber of bindings t he Swit ch has ignored because t he
Swit ch already had a binding wit h t he sam e MAC address and VLAN I D.
This field displays t he num ber of bindings t he Swit ch has ignored because t he port
num ber was a t rust ed int erface or does not exist anym ore.
This field displays t he num ber of bindings t he Swit ch has ignored because t he
Swit ch was unable t o underst and t he binding in t he DHCP binding dat abase.
This field displays t he num ber of bindings t he Swit ch has ignored because t he lease
t im e had already expired.
This field displays t he num ber of bindings t he Swit ch has ignored because t he VLAN
I D does not exist anym ore.
GS3700/XGS3700 Series User's Guide
273