97
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] dhcp snooping trust
Related commands
display dhcp snooping trust
dhcp snooping trust interface
Use
dhcp snooping trust interface
to configure an interface in a VLAN as a DHCP
snooping trusted port.
Use
undo dhcp snooping trust interface
to configure an interface in a VLAN as a DHCP
snooping untrusted port.
Syntax
dhcp snooping trust interface
interface-type interface-number
undo dhcp snooping trust interface
interface-type interface-number
Default
After you enable DHCP snooping for a VLAN, all interfaces in the VLAN are DHCP snooping
untrusted ports.
Views
VLAN view
Predefined user roles
network-admin
Parameters
interface-type interface-number
: Specifies an interface by its type and number.
Usage guidelines
In a VLAN, configure interfaces facing the DHCP server as trusted ports, and configure other
interfaces as untrusted ports. The trusted ports forward response messages from the DHCP server
to the clients. The untrusted ports connected to unauthorized DHCP servers discard incoming DHCP
response messages.
You can execute this command multiple times in a VLAN to configure multiple trusted ports in the
VLAN.
Make sure the specified interface is in the VLAN for which the
dhcp snooping enable vlan
command is configured.
Examples
# Configure GigabitEthernet 1/0/1 as a trusted port in VLAN 1.
<Sysname> system-view
[Sysname] vlan 1
[Sysname-vlan 1] dhcp snooping trust interface gigabitethernet 1/0/1
Related commands
display
dhcp
snooping
trust
display dhcp snooping binding
Use
display dhcp snooping binding
to display DHCP snooping entries.
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...