ZyXEL Communications GS2210-24, Руководство пользователя

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Chapter 26 IP Source Guard
GS2210 Series User’s Guide
232
26.6.1 DHCP Snooping Port Configure
Use t his scr een t o specify w het her por t s ar e t rust ed or unt r ust ed por t s for DHCP snooping.
Not e: I f DHCP snooping is enabled but t her e ar e no t r ust ed por t s, DHCP r equest s cannot
r each t he DHCP ser ver.
You can also specify t he m axim um num ber for DHCP packet s t hat each por t ( t r ust ed or unt r ust ed)
can r eceive each second. 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 > Por t .
Renew DHCP
Snooping URL Ent er t he locat ion of a DHCP snooping dat abase, and click Re n e w if you want t he
Sw it ch t o load it . You can use t his t o load dy nam ic bindings from a differ ent DHCP
snooping dat abase t han t he one specified in Ag e n t URL.
When t he Sw it ch loads dynam ic bindings fr om a DHCP snooping dat abase, it does
not discar d t he curr ent dynam ic bindings fir st . I f t here is a conflict , t he Sw it ch
keeps t he dynam ic binding in volat ile m em or y and updat es t he Bin din g collision s
count er in t he D H CP Sn oopin g scr een (
Sect ion 26.5 on page 227 ) .
Apply Click App ly t o save your changes t o t he Sw it ch’s r un- t im e m em or y. The Sw it ch
loses t hese changes if it is t ur ned off or loses pow er, so use t he Sa ve link on t he
t op navigat ion panel t o save your changes t o t he non- volat ile m em ory w hen you
ar e done configur ing.
Cancel Click t his t o reset t he values in t his scr een t o t heir last - saved values.
Table 101 Advanced Applicat ion > I P Source Guar d > I Pv4 Source Guard Set up > DHCP Snooping >
Configur e ( cont inued) ( cont inued)
LABEL DESCRIPTION