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show dhcp-security ipv6 binding

 

Syntax

Release Information

Command introduced in Junos OS Release 13.2X51-D20 for EX Series switches.

Command introduced in Junos OS Release 17.2R1 for the QFX Series.

Description

Display bindings between IPv6 addresses and MAC addresses (IP-MAC bindings) along with other DHCP lease information, also known as the DHCPv6 binding table or DHCPv6 snooping database.

Options

interface interface-name(Optional) Display the DHCPv6 snooping table for the specified interface.
ipv6-address ipv6-address(Optional) Display the DHCPv6 snooping table for the specified IPv6 address.
vlan vlan-name(Optional) Display the DHCPv6 snooping table for a VLAN.

Required Privilege Level

view

List of Sample Output

show dhcp-security ipv6 binding

show dhcp-security ipv6 binding interface

Output Fields

Table 1 lists the output fields for the show dhcp-security ipv6 binding command. Output fields are listed in the approximate order in which they appear.

The DHCPv6 binding table shows the untrusted access interfaces in VLANs that have been enabled for DHCPv6 snooping. The entries include the IPv6 addresses and MAC addresses that are bound to one another.

Table 1: show dhcp-security ipv6 binding Output Fields

Field Name

Field Description

Level of Output

IPv6 address

IPv6 addresses of the network device; bound to the MAC address. There are two entries added for each client: one with the link-local IPv6 address, which is used by the client for DHCP transactions, and another with the IPv6 address assigned by the server. The link-local address always has the prefix fe80::/10.

All levels

MAC address

MAC address of the network device; bound to the IPv6 address.

All levels

VLAN

VLAN name of the network device whose MAC address is shown.

All levels

Expires

The time, in seconds, remaining before the lease of the IPv6 address to the MAC address expires. This field is 0 for static entries.

All levels

State

Specifies whether the IPv6 address is:

  • BOUND: Temporarily leased to the MAC address for a limited period of time.

  • STATIC: Attached to a fixed MAC address.

All levels

Interface

Interface address (port).

All levels

Sample Output

show dhcp-security ipv6 binding

user@switch> show dhcp-security ipv6 binding

Sample Output

show dhcp-security ipv6 binding interface

user@switch> show dhcp-security ipv6 binding interface ge-0/0/4.0