show dhcp-security ipv6 binding
Syntax
show dhcp-security ipv6 binding<detail> <interface interface-name> <ipv6-address ipv6-address> <vlan vlan-name>
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
| detail | (Optional) Display the DHCPv6 snooping table along with various DHCP client
options. The option information associated with a binding is displayed in
Code-Length-Value triplet. The option values are displayed as a hex dump. Note:
DHCP client options are displayed for DHCPv6 only when the snoop entry type is IA_NA. |
| 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
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.
Field Name |
Field Description |
Level of Output |
|---|---|---|
|
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 of the network device; bound to the IPv6 address. |
All levels |
|
VLAN name of the network device whose MAC address is shown. |
All levels |
|
The time, in seconds, remaining before the lease of the
IPv6 address to the MAC address expires. This field is |
All levels |
|
Specifies whether the IPv6 address is:
|
All levels |
|
Interface address (port). |
All levels |
Type |
Shows the snoop entry type, whenever one is present. Snoop entry types can be one of the following:
|
All levels |
Sample Output
- show dhcp-security ipv6 binding
- show dhcp-security ipv6 binding detail
- show dhcp-security ipv6 binding interface
show dhcp-security ipv6 binding
user@switch> show dhcp-security ipv6 binding IPv6 address MAC address Vlan Expires State Interface Type fe80::210:94ff:fe00:7 00:10:94:00:00:07 vlan-iapd 86394 BOUND ge-0/0/13.0 Link local 2002::e 00:10:94:00:00:07 vlan-iapd 86394 BOUND ge-0/0/13.0 IA-NA 2002::c 00:10:94:00:00:02 vlan-iapd 0 STATIC ge-0/0/13.0 Static 2000:1::5:0/112 00:10:94:00:00:07 vlan-iapd 86394 BOUND ge-0/0/13.0 IA-PD
show dhcp-security ipv6 binding detail
user@device> show dhcp-security ipv6 binding detail IPv6 Address: fe80::210:94ff:fe00:7 MAC address: 00:10:94:00:00:02 Vlan: snoop-vlan Lease Expires in: 91 State: BOUND Interface: ge-0/0/13.0 Type: Link local IPv6 Address: 2001:db8:fe16::/112 MAC address: 00:10:94:00:00:02 Vlan: snoop-vlan Lease Expires in: 91 State: BOUND Interface: ge-0/0/13.0 Type: IA-PD IPv6 Address: 2001:db8::10:10:2 MAC address: 00:10:94:00:00:02 Vlan: snoop-vlan Lease Expires in: 91 State: BOUND Interface: ge-0/0/13.0 Type: IA-NA DHCP Client Options: Option: 1, Length: 14, Value: 00 01 00 01 64 35 42 89 00 10 94 00 00 02 Option: 2, Length: 26, Value: 00 02 00 00 05 83 34 34 3a 61 61 3a 35 30 3a 63 32 3a 63 33 3a 32 30 00 00 00 Option: 3, Length: 40, Value: 00 00 00 00 00 00 00 3c 00 00 00 60 00 05 00 18 20 00 00 00 00 00 00 00 00 10 00 10 00 00 00 02 00 00 00 78 00 00 00 78
show dhcp-security ipv6 binding interface
user@switch> show dhcp-security ipv6 binding interface ge-0/0/4.0 IPv6 address MAC address Vlan Expires State Interface 2001:db8:fe16:: 00:10:00:20:00:01 vlan20 0 STATIC ge-0/0/4.0 fe80::210:94ff:fe00:4 00:10:00:20:00:01 vlan20 0 STATIC ge-0/0/4.0
Release Information
Command introduced in Junos OS Release 13.2X51-D20.
detail option introduced in Junos OS Release 23.1.