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SIGNAMAX LLC • www.signamax.eu
When the binding relationship between the source IP address and source MAC address in a
ARP packet matches the items in the DHCP Snooping table or the items in the IP static binding
table, and the ingress port of the ARP packet and the VLAN to which the ingress port belongs
to match with the items in the DHCP Snooping table or the items in the IP static binding table
configured manually in the IP Source Guard, then the packet is a legal ARP packet to be
transmitted.
•
When the binding relationship of the source IP address and the source MAC address in
a ARP packet doesn’t match the items in the DHCP Snooping table or the items in the
IP static binding table configured manually, or the ingress port of the ARP packet and
the VLAN to which the ingress port belongs to are not consistent with the items in
DHCP Snooping table or the items in the IP static binding table configured manually in
the IP Source Guard, then the packet is a illegal ARP packet to be discarded directly,
and the log information is printed.
Basic Commands
Command
Description
Config mode
ip arp inspection
To enable the Dynamic ARP Inspection
function
config-port-xx,
config-link-
aggregation-x
no ip arp inspection
To disable the Dynamic ARP Inspection
function
config-port-xx,
config-link-
aggregation-x
ip arp inspection rate-limit
num
*To configure the number of ARP
packet rate limitations.
config-port-xx,
config-link-
aggregation-x
no ip arp inspection rate-limit
To recover the limit of the ARP packet
rate to the default value
config-port-xx,
config-link-
aggregation-x
ip source binding
mac-addr
vlan
num ip-addr
*To configure static binding table
config-port-xx,
config-link-
aggregation-x
ip arp inspection log-level
num
*To configure the level of a log
record
config
no ip arp inspection log- level
To recover the log record level to the
default value
config
ip arp inspection log-buffer
num
*To configure the buffer size of a
log
config
no ip arp inspection log- buffer
To recover the
buffer size of a log
to the default value
config
ip arp inspection log-interval
seconds
*To configure the interval for log
output
config
no ip arp inspection log-interval
To recover
the interval for log
output to the default value
config
Содержание 065-7434
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Страница 245: ...245 SIGNAMAX LLC www signamax eu Application Example Example of configuring DHCP Snooping ...
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Страница 655: ...287 SIGNAMAX LLC www signamax eu Sub VLAN members in the system ...