Brocade Multi-Service IronWare Switching Configuration Guide (Supporting R05.6.00) - Manual (Page 797)

Multi-Service IronWare Switching Configuration Guide 767
53-1003036-02
DHCP option 82 insertion
19
Displaying DHCP snooping status and ports
To display the DHCP snooping status for a VLAN and the trusted and untrusted ports in the VLAN,
enter the following command.
Syntax: show ip dhcp-snooping [vlan vlan-id]
Displaying DAI binding entries
To display all ARP inspection binding entries, including dhcp bindings specific to a VRF instance,
enter the following command.
Syntax: show dai [vrf vrf_name] [vlan vlan_id] [ip-subnet]
The vrf_name variable specifies the ARP entries that belong to a given VRF instance.
The vlan_id variable specifies the ID of a configured VLAN.
The ip subnet variable specifies the ARP entries that belong to specific IP-subnet address.
The following table describes the parameters of the show dai command:
TABLE 91 Display of show dai
This field... Displays...
Index (Idx) The row number of this entry in the IP route table.
Type The ARP entry type, which can be any one of the following:
Dynamic – The Layer 3 Switch learned the entry from an incoming packet.
Static – The Layer 3 Switch loaded the entry from the static ARP table when the
device for the entry was connected to the Layer 3 Switch.
DHCP – The Layer 3 Switch learned the entry from the DHCP binding address
table.
IP Address The IP address of the device.
MAC Address The MAC address of the device.
Port The source port for the host vlan.
Vlan Server IP The VLAN Server IP address of the server which assigns the IP/MAC mapping.
LTime The lease time (aging timer for a DHCP entry).
Brocade#show ip dhcp-snooping vlan 172
IP DHCP snooping VLAN 172: Enabled
Trusted Ports : ethe 5/2 ethe 5/4
Untrusted Ports : ethe 4/24 ethe 9/4 to 9/5 ethe 9/12 ethe 9/14
Brocade(config)#show dai 10.1.1.0/24
Total no. of entries: 51
Idx Type IP Address MAC Address Port Vlan Server IP LTime
1 D 10.1.1.19 aabb.cc00.0012 10 10.1.1.2 3360
2 D 10.1.1.22 aabb.cc00.0007 10 10.1.1.2 3360
3 D 10.1.1.25 aabb.cc00.0030 10 10.1.1.2 3360
4 D 10.1.1.26 aabb.cc00.0004 10 10.1.1.2 3360
5 D 10.1.1.30 0030.488a.1c25 10 10.1.1.2 40200
6 D 10.1.1.32 aabb.cc00.0001 10 10.1.1.2 3360
7 D 10.1.1.34 aabb.cc00.0019 10 10.1.1.2 1560
8 D 10.1.1.39 aabb.cc00.000d 10 10.1.1.2 3360
9 D 10.1.1.44 aabb.cc00.0020 10 10.1.1.2 3360
10 D 10.1.1.46 aabb.cc00.0022 10 10.1.1.2 3360