Chapter 26 IP Source Guard
GS2210 Series User’s Guide
234
26.6.2 DHCP Snooping VLAN Configure
Use t his scr een t o enable DHCP snooping on each VLAN and t o specify w het her or not t he Swit ch
adds DHCP r elay agent opt ion 82 infor m at ion (
) t o DHCP r equest s t hat t he
Swit ch r elay s t o a DHCP ser ver for each VLAN. 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 f igu r e > V LAN .
Figure 161
Advanced Applicat ion > I P Sour ce Guar d > I Pv 4 Sour ce Guar d Set up > DHCP Snooping
> Configur e > VLAN
The follow ing t able descr ibes t he labels in t his scr een.
Ser ver Tr ust ed st at e
Select w het her t his por t is a t r ust ed por t ( Tr u st e d) or an unt rust ed por t
( Un t r u st e d ) .
Tr ust ed por t s ar e connect ed t o DHCP ser ver s or ot her sw it ches, and t he Sw it ch
discar ds DHCP packet s fr om t rust ed por t s only if t he rat e at w hich DHCP packet s
ar rive is t oo high.
Unt r ust ed por t s ar e connect ed t o subscr iber s, and t he Sw it ch discards DHCP
packet s fr om unt r ust ed por t s in t he follow ing sit uat ions:
•
The packet is a DHCP ser ver packet ( for ex am ple, OFFER, ACK, or NACK) .
•
The sour ce MAC addr ess and source I P addr ess in t he packet do not m at ch any
of t he cur r ent bindings.
•
The packet is a RELEASE or DECLI NE packet , and t he sour ce MAC addr ess and
sour ce por t do not m at ch any of t he cur r ent bindings.
•
The rat e at w hich DHCP packet s ar r ive is t oo high.
Rat e ( pps)
Specify t he m ax im um num ber for DHCP packet s ( 1- 2048) t hat t he Sw it ch r eceives
fr om each por t each second. The Sw it ch discar ds any addit ional DHCP packet s.
Ent er 0 t o disable t his lim it , w hich is r ecom m ended for t r ust ed por t s.
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 102
Advanced Applicat ion > I P Source Guar d > I Pv4 Source Guard Set up > DHCP Snooping >
Configur e > Port
LABEL
DESCRIPTION
Table 103
Advanced Applicat ion > I P Source Guar d > I Pv4 Source Guard Set up > DHCP Snooping >
Configur e > VLAN
LABEL
DESCRIPTION
Show VLAN
Use t his sect ion t o specify t he VLANs you want t o m anage in t he sect ion below.
St ar t VI D
Ent er t he low est VLAN I D you want t o m anage in t he sect ion below.
Содержание GS2210-24
Страница 18: ...18 PART I User s Guide ...
Страница 33: ...33 PART II Technical Reference ...
Страница 110: ...Chapter 9 VLAN GS2210 Series User s Guide 110 Figure 83 Advanced Application VLAN Port Based VLAN Setup All Connected ...
Страница 111: ...Chapter 9 VLAN GS2210 Series User s Guide 111 Figure 84 Advanced Application VLAN Port Based VLAN Setup Port Isolation ...
Страница 178: ...Chapter 21 Classifier GS2210 Series User s Guide 178 Figure 127 Classifier Example ...
Страница 405: ...Chapter 51 Configure Clone GS2210 Series User s Guide 405 Figure 286 Management Configure Clone ...
Страница 433: ...Appendix D Legal Information GS2210 Series User s Guide 433 Environmental Product Declaration ...