175
Default
No IPv6 portal authentication source subnet is configured on the interface. Portal users from any IPv6
subnet must pass portal authentication.
Views
Interface view
Predefined user roles
network-admin
Parameters
ipv6-network-address: Specifies an IPv6 portal authentication source subnet address.
prefix-length: Specifies the prefix length of the IPv6 address, in the range of 0 to 128.
Usage guidelines
With IPv6 authentication source subnets configured, only packets from IPv6 users on the authentication
source subnets can trigger portal authentication. If an unauthenticated IPv6 user is not on any
authentication source subnet, the access device discards all the user's packets that do not match any
portal-free rule.
If you do not specify the ipv6-network-address argument in the undo portal ipv6 layer3 source command,
this command deletes all IPv6 portal authentication source subnets on the interface.
Only cross-subnet authentication supports authentication source subnets.
If you configure both an authentication source subnet and an authentication destination subnet on an
interface, only the authentication destination subnet takes effect.
Examples
# Configure an IPv6 portal authentication source subnet of 1::1/16 on interface GigabitEthernet 2/1/1.
Only portal users from subnet 1::1/16 trigger portal authentication.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname–GigabitEthernet2/1/1] portal ipv6 layer3 source 1::1 16
Related commands
• display portal interface
• portal ipv6 free-all except destination
portal ipv6 user-detect
Use portal ipv6 user-detect to enable online detection of IPv6 portal users on an interface.
Use undo portal user-detect to restore the default.
Syntax
portal ipv6 user-detect type { nd | icmpv6 } [ retry retries] [ interval interval ] [ idle time ]
undo portal ipv6 user-detect
Default
Online detection of IPv6 portal users is disabled on the interface.