1-9
Description
Use the
dhcp server detect
command to enable the unauthorized DHCP server detection function.
With this feature enabled, upon receiving a DHCP request, the DHCP server will record the IP
addresses of any DHCP servers which ever assigned an IP address to the DHCP client and the
receiving interface. The administrator can use this information to check out any unauthorized DHCP
servers.
Use the
undo dhcp server detect
command to disable the unauthorized DHCP server detecting
function.
By default, the unauthorized DHCP server detecting function is disabled.
Note that:
With unauthorized DHCP server detection enabled, the device records only one entry for each DHCP
server. The administrator needs to find unauthorized DHCP servers from the log information.
Examples
# Enter system view.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
# Enable the unauthorized DHCP server detecting function.
[Sysname] dhcp server detect
dhcp server dns-list
Syntax
In VLAN interface view, use the following commands to specify the DNS server IP address in the
current DHCP interface address pool for the client.
dhcp server dns-list ip-address
&<1-8>
undo dhcp server dns-list
{
ip-address
|
all
}
In system view, use the following commands to specify the DNS server IP address in multiple DHCP
interface address pools for the client.
dhcp server dns-list ip-address
&<1-8> {
interface interface-type interface-number
[
to
interface-type
interface-number
] |
all
}
undo dhcp server dns-list
{
ip-address
|
all
} {
interface interface-type interface-number
[
to
interface-type interface-number
] |
all
}
View
System view, VLAN interface view
Parameters
ip-address
&<1-8>: IP address of a DNS server. &<1-8> means you can provide up to eight DNS server
IP addresses. When inputting more than one DNS server IP address, separate two neighboring IP
addresses with a space.
interface interface-type interface-number
[
to interface-type interface-number
]: Specifies the
interface(s), through which you can specify the corresponding interface address pools. The
interface-type
argument specifies an interface type; the
interface-number
argument specifies an
Содержание 5500-EI PWR
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Страница 477: ...5 24 Sysname vlan 2 Sysname vlan2 service type multicast...
Страница 503: ...2 3 System View return to User View with Ctrl Z Sysname dot1x url http 192 168 19 23...
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Страница 597: ...2 2 security policy server 192 168 0 1 user name format without domain...
Страница 648: ...1 9 Examples Clear static ARP entries Sysname reset arp static...
Страница 663: ...4 3 Sysname resilient arp interface vlan interface 2...
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