90
If you execute this command multiple times for a DHCPv6 guard policy, the most recent configuration
takes effect.
Examples
# Specify ACL 2233 to match IPv6 addresses/prefixes assigned by a DHCPv6 server.
<Sysname> system-view
[
Sysname
]
ipv6 dhcp guard policy p1
[
Sysname-dhcp6-guard-policy-p1
]
if-match reply acl 2233
Related commands
acl
(
ACL and QoS Command Reference
)
rule
(IPv6 advanced ACL view) (
ACL and QoS Command Reference
)
rule
(IPv6 basic ACL view) (
ACL and QoS Command Reference
)
if-match server acl
Use
if-match server acl
to configure a DHCPv6 server match criterion
Use
undo if-match server acl
to restore the default.
Syntax
if-match server acl
{
acl-number
|
name
acl-name
}
undo if-match server acl
Default
No DHCP server match criterion is configured, and all DHCPv6 servers are authorized.
Views
DHCPv6 guard policy view
Predefined user roles
network-admin
Parameters
acl-number
: Specifies an ACL number. The value range for this argument is as follows:
•
2000 to 2999 for a basic ACL.
•
3000 to 3999 for an advanced ACL.
name
acl-name
: Specifies a basic or advanced ACL by its name, a case-insensitive string of 1 to
63 characters. The ACL name must start with an English letter and to avoid confusion, it cannot be
all
.
Usage guidelines
The device uses the source IPv6 address attributes in the specified ACL to match the source IPv6
address in the received DHCPv6 Advertise message.
If the source IPv6 address matches a permit statement in the ACL, the device continues to use other
criterion to verify the message. If the source IPv6 address does not match the ACL, the device drops
the Advertise message.
When you configure a DHCPv6 server match criterion, follow these guidelines:
•
If the specified ACL does not exist or has no match rules, all DHCPv6 servers can match the
ACL and the DHCPv6 guard feature will forward all received DHCPv6 Advertise messages.
•
If the specified ACL has no source IP address filters, no DHCPv6 servers can match the ACL
and the DHCPv6 guard feature will discard all received DHCPv6 Advertise messages.
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...