4000 Router Series Fundamentals Command Reference

telnet server ipv6 acl

Use telnet server ipv6 acl to apply an IPv6 ACL to filter IPv6 Telnet logins.

Use undo telnet server ipv6 acl to restore the default.

Syntax

telnet server ipv6 acl [ ipv6 ] acl-number

undo telnet server ipv6 acl

Default

No ACL is used to filter IPv6 Telnet logins.

Views

System view

Predefined user roles

network-admin

Parameters

acl-number: Specifies an IPv6 ACL by its number:

• Basic ACL—2000 to 2999. The ipv6 option is required.

• Advanced ACL—3000 to 3999. The ipv6 option is required.

• Ethernet frame header ACL—4000 to 4999. Do not specify the ipv6 option.

Usage guidelines

If the ACL does not exist or does not have a rule, all users are permitted to Telnet to the device.

When the ACL exists and has rules, only users permitted by the ACL can Telnet to the device.

This command is not effective for existing Telnet connections.

If you execute this command multiple times, the most recent configuration takes effect.

For more information about ACL, see ACL and QoS Configuration Guide.

This command is not supported in FIPS mode.

Examples

# Permit only the user at 2000::1 to Telnet to the device.

<Sysname> system-view

[Sysname] acl ipv6 number 2001

[Sysname-acl6-basic-2001] rule permit source 2000::1 128

[Sysname-acl6-basic-2001] quit

[Sysname] telnet server ipv6 acl ipv6 2001

telnet server ipv6 dscp

Use telnet server ipv6 dscp to set the DSCP value for IPv6 to use for outgoing Telnet packets on a Telnet

server.

Use undo telnet server ipv6 dscp to restore the default.