7
Usage guidelines
After you enable SNMP notifications for ARP, the device generates a notification that includes the
highest threshold-crossed ARP packet rate within the sending interval.
For ARP event notifications to be sent correctly, you must also configure SNMP on the device. For
more information about SNMP configuration, see the network management and monitoring
configuration guide for the device.
Examples
# Enable SNMP notifications for ARP packet rate limit.
<Sysname> system-view
[Sysname] snmp-agent trap enable arp rate-limit
Source MAC-based ARP attack detection
commands
arp source-mac
Use
arp source-mac
to enable the source MAC-based ARP attack detection feature and specify
a handling method.
Use
undo arp source-mac
to disable the source MAC-based ARP attack detection feature.
Syntax
arp source-mac
{
filter
|
monitor
}
undo arp source-mac
[
filter
|
monitor
]
Default
The source MAC-based ARP attack detection feature is disabled.
Views
System view
Predefined user roles
network-admin
Parameters
filter
: Specifies the filter handling method.
monitor
: Specifies the monitor handling method.
Usage guidelines
Configure this feature on the gateways.
This feature checks the number of ARP packets delivered to the CPU. If the number of packets from
the same MAC address within 5 seconds exceeds a threshold, the device generates an ARP attack
entry for the MAC address. Before the entry ages out, the device handles the attack by using either
of the following methods:
•
Monitor
—Only generates log messages.
•
Filter
—Generates log messages and filters out subsequent ARP packets from the MAC
address and data packets sources from or destined for the MAC address.
Make sure you have enabled the ARP logging feature before enabling the source MAC-based ARP
attack detection feature. For information about the ARP logging feature, see
Layer 3—IP Services
Configuration Guide
.
Содержание SOHO IE4300
Страница 114: ...ii tftp client ipv6 source 41 tftp client source 41 tftp ipv6 42 tftp server acl 44 tftp server ipv6 acl 44...
Страница 285: ...i Contents Tcl commands 1 cli 1 tclquit 1 tclsh 2...
Страница 288: ...i Contents Python commands 1 exit 1 python 1 python filename 2...
Страница 291: ...i Contents Automatic configuration commands 1 autodeploy udisk enable 1...
Страница 323: ...25 Sysname Ten GigabitEthernet1 0 51 undo shutdown Related commands irf port...
Страница 396: ...i Contents Bulk interface configuration commands 1 display interface range 1 interface range 1 interface range name 3...
Страница 460: ...i Contents Port isolation commands 1 display port isolate group 1 port isolate enable 2 port isolate group 2...
Страница 465: ...ii stp vlan enable 55 vlan mapping modulo 55...
Страница 589: ...60 Examples Enable LLDP for automatic IP phone discovery Sysname system view Sysname voice vlan track lldp...
Страница 602: ...12 Related commands display mvrp statistics...
Страница 609: ...i Contents VLAN mapping commands 1 display vlan mapping 1 vlan mapping 2...
Страница 678: ...9 Related commands reset pppoe relay statistics...
Страница 846: ...i Contents Basic IP forwarding commands 1 display fib 1 ip forwarding table save 2...
Страница 1073: ...i Contents HTTP redirect commands 1 http redirect https port 1 http redirect ssl server policy 1...
Страница 1087: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...
Страница 1340: ...9 Sysname ipv6 route static default preference 120 Related commands display ipv6 routing table protocol...
Страница 1649: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...
Страница 1668: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...
Страница 1770: ...i Contents Time range commands 1 display time range 1 time range 1...
Страница 2026: ...34 Related commands display mac authentication...
Страница 2028: ...ii...
Страница 2143: ...i Contents User profile commands 1 display user profile 1 user profile 2...
Страница 2308: ...61 ipsec transform set...
Страница 2473: ...i Contents TCP attack prevention commands 1 tcp anti naptha enable 1 tcp check state interval 1 tcp state 2...
Страница 2531: ...i Contents SAVI commands 1 ipv6 savi down delay 1 ipv6 savi log enable 1 ipv6 savi strict 2...
Страница 2534: ...3 Sysname ipv6 savi strict Related commands ipv6 verify source...
Страница 2541: ...i Contents Crypto engine commands 1 display crypto engine 1 display crypto engine statistics 1 reset crypto engine statistics 3...
Страница 2545: ...i Contents FIPS commands 1 display crypto version 1 display fips status 1 fips mode enable 2 fips self test 4...
Страница 2791: ...14 Sysname track 1 Related commands delay display track...
Страница 2939: ...9 sntp authentication keyid sntp reliable authentication keyid...
Страница 2967: ...27 Related commands apply poe profile poe enable poe max power interface view poe priority...
Страница 3240: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...
Страница 3263: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...