ZyXEL Communications GS2210-24, Руководство пользователя

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Chapter 26 IP Source Guard
GS2210 Series User’s Guide
230
26.6 DHCP Snooping Configure
Use t his scr een t o enable DHCP snooping on t he Swit ch ( not on specific VLAN) , specify t he VLAN
wher e t he default DHCP ser ver is locat ed, and configur e t he DHCP snooping dat abase. The DHCP
snooping dat abase st or es t he cur r ent bindings on a secur e, ext er nal TFTP ser ver so t hat t hey ar e
st ill available aft er a r est ar t . To open t his scr een, click Adv a n ce d Applica t ion > I P Sou r ce Gu a r d
> I Pv 4 Sou r ce Gu a r d Se t u p > D H CP Sn oopin g > Con figu r e .
Last ignor ed bindings
count er s This sect ion displays t he num ber of t im es and t he r easons t he Sw it ch ignor ed
bindings t he last t im e it r ead bindings fr om t he DHCP binding dat abase. You can
clear t hese count er s by r est ar t ing t he Sw it ch or using CLI com m ands. See t he CLI
Refer ence Guide.
Binding collisions This field display s t he num ber of bindings t he Sw it ch ignor ed because t he Sw it ch
alr eady had a binding w it h t he sam e MAC addr ess and VLAN I D.
I nvalid int er faces This field displays t he num ber of bindings t he Sw it ch ignor ed because t he por t
num ber was a t r ust ed int er face or does not ex ist any m or e.
Par se failur es This field display s t he num ber of bindings t he Sw it ch ignor ed because t he Sw it ch
was unable t o under st and t he binding in t he DHCP binding dat abase.
Ex pir ed leases This field display s t he num ber of bindings t he Sw it ch ignor ed because t he lease
t im e had already ex pir ed.
Unsuppor t ed v lans This field display s t he num ber of bindings t he Sw it ch ignor ed because t he VLAN I D
does not ex ist any m or e.
Last ignor ed t im e This field display s t he last t im e t he Sw it ch ignor ed any bindings for any r eason
fr om t he DHCP binding dat abase.
Tot al ignor ed bindings
count er s This sect ion displays t he r easons t he Sw it ch has ignor ed bindings any t im e it r ead
bindings fr om t he DHCP binding dat abase. You can clear t hese count er s by
r est ar t ing t he Sw it ch or using CLI com m ands. See t he CLI Refer ence Guide.
Binding collisions This field display s t he num ber of bindings t he Sw it ch has ignor ed because t he
Sw it ch alr eady had a binding w it h t he sam e MAC addr ess and VLAN I D.
I nvalid int er faces This field displays t he num ber of bindings t he Sw it ch has ignor ed because t he por t
num ber was a t r ust ed int er face or does not ex ist any m or e.
Par se failur es This field display s t he num ber of bindings t he Sw it ch has ignor ed because t he
Sw it ch was unable t o under st and t he binding in t he DHCP binding dat abase.
Ex pir ed leases This field display s t he num ber of bindings t he Sw it ch has ignored because t he lease
t im e had already ex pir ed.
Unsuppor t ed vlans This field displays t he num ber of bindings t he Sw it ch has ignor ed because t he
VLAN I D does not ex ist anym or e.
Table 100 Advanced Applicat ion > I P Source Guar d > I Pv 4 Source Guard Set up > DHCP Snooping
LABEL DESCRIPTION