22
•
Existing dynamic and static ARP entries before conversion.
•
New dynamic ARP entries learned during the conversion.
Dynamic ARP entries that are aged out during the conversion are not converted to static ARP
entries.
To delete a static ARP entry changed from a dynamic one, use the
undo arp
ip-address
[
vpn-instance-name
]
command. To delete all such static ARP entries, use the
reset arp
all
or
reset arp static
command.
Examples
# Convert existing dynamic ARP entries to static ARP entries.
<Sysname> system-view
[Sysname] arp fixup
arp scan
Use
arp scan
to trigger an ARP scanning in an address range.
Syntax
arp scan
[
start-ip-address
to
end-ip-address
] [
send-rate
pps
]
Views
VLAN interface view
Predefined user roles
network-admin
Parameters
start-ip-address
: Specifies the start IP address of the scanning range.
end-ip-address
: Specifies the end IP address of the scanning range. The end IP address must
be higher than or equal to the start IP address.
send-rate
pps
: Specifies the rate at which the device sends ARP requests for ARP scanning, in
pps. The value range for the
pps
argument is 10 to 1000, and the value must be a multiple of 10. If
you do not set the rate, the device sends ARP requests to all IP addresses in the specified scanning
range simultaneously.
Usage guidelines
CAUTION:
ARP scanning will take some time. To stop an ongoing scan, press
Ctrl
+
C
. Dynamic ARP entries
are created based on ARP replies received before the scan is terminated.
ARP scanning automatically creates ARP entries for devices in the specified address range. IP
addresses already in existing ARP entries are not scanned.
If the interface's primary and secondary IP addresses are in the address range, the sender IP
address in the ARP request is the address on the smallest network segment.
If no address range is specified, the device learns ARP entries for devices on the subnet where the
primary IP address of the interface resides. The sender IP address in the ARP requests is the
primary IP address of the interface.
The start and end IP addresses must be on the same subnet as the primary IP address or secondary
IP addresses of the interface.
You can set the ARP packet sending rate if the scanning range has a large number of IP addresses.
This setting can avoid high CPU usage and heavy network load caused by a burst of ARP traffic.
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...