23
[Sysname] undo dhcp server relay information enable
dhcp server request-ip-address check
Use
dhcp server request-ip-address check
to enable the DHCP server to return a
DHCP-NAK message if the client notions of their IP addresses are incorrect.
Use
undo dhcp server request-ip-address check
to restore the default.
Syntax
dhcp server request-ip-address check
undo dhcp server request-ip-address check
Default
The DHCP server does not return a DHCP-NAK message if the client notions of their IP addresses
are incorrect.
Views
System view
Predefined user roles
network-admin
Usage guidelines
A DHCP client can send a DHCP-REQUEST message directly or upon receiving a DHCP-OFFER
message. Upon receiving the request, the DHCP server will check if the client notion of its IP address
is correct. If the requested IP address is different from the allocated one or has no matching lease
record, the DHCP server remains silent by default. After the allocated IP address lease for the client
expires, the DHCP server will make response to request from the client.
This feature enables the DHCP server to return DHCP-NAK messages if the client notions of their IP
addresses are incorrect. After receiving the DHCP-NAK message, the DHCP client will request an IP
address again.
Examples
# Enable the DHCP server to return a DHCP-NAK message if the client notions of their IP addresses
are incorrect.
<Sysname> system-view
[Sysname] dhcp server request-ip-address check
Related commands
dhcp select server
display dhcp server conflict
Use
display dhcp server conflict
to display information about IP address conflicts.
Syntax
display dhcp server conflict
[
ip ip-address
]
[
vpn-instance
vpn-instance-name
]
Views
Any view
Predefined user roles
network-admin
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...