Chapter 34 Anti-Arpscan
GS2210 Series User’s Guide
313
Figure 217
Advanced Applicat ion > Ant i- Ar pscan > Configur e
The follow ing t able descr ibes t he labels in t his scr een.
Table 151
Advanced Applicat ion > Ant i- Ar pscan > Configur e
LABEL
DESCRIPTION
Act ive
Select t his t o enable An t i- a r psca n on t he Sw it ch.
Port Thr eshold
A por t t hr eshold is det er m ined by t he num ber of packet s received per second on t he por t .
I f t he r eceived packet rat e is over t he t hr eshold, t hen t he por t is put int o an Er r - D isa ble
st at e. Ty pe t he m ax im um num ber of packet s per second allow ed on t he por t befor e it is
blocked.
Note: The allowed range is 2 to 255 packets received per second.
Host Thr eshold
A host t hr eshold is det er m ined by t he num ber of ARP- r equest packet s r eceived per
second. This is t he global t hr eshold rat e for all host s. I f t he rat e of a host is over t he
t hr eshold, t hen t hat host is blocked by using a MAC addr ess filt er. A blocked host is
r eleased aut om at ically aft er t he MAC aging t im e expir es.
Ty pe t he m axim um num ber of ARP- r equest packet s allow ed by a host befor e it is
blocked.
Note: The allowed range is 2 to 100 ARP-request packets per second.
Note: The port-based threshold must be larger than the host-based threshold or the host-
based threshold will not be applied.
Port
This is t he por t index num ber. Use por t * t o have all por t s be Un t r u st e d or Tr u st e d .
*
Set t ings in t his r ow apply t o all por t s.
Use t his r ow only if you want t o m ake som e set t ings t he sam e for all por t s. Use t his r ow
fir st t o set t he com m on set t ings and t hen m ake adj ust m ent s on a por t - by- por t basis.
Note: Changes in this row are copied to all the ports as soon as you make them.
Trust ed St at e
Select Un t r u st e d or Tr u st e d for t he associat ed por t . An t i- a r psca n is not per for m ed on
t rust ed host s.
