Cisco Nexus 1000V - Page 213

20-7
Cisco Nexus 1000V Troubleshooting Guide, Release 5.2(1)SV3(1.1)
OL-31593-01
Chapter 20 DHCP, DAI, and IPSG
DHCP, DAI, and IPSG Troubleshooting Commands
Example 20-1 show running-config dhcp Command
switch# show running-config dhcp
!Command: show running-config dhcp
!Time: Wed Feb 16 14:20:36 2011
version 4.2(1)SV1(4)
feature dhcp
no ip dhcp relay
switch#
Example 20-2 show ip dhcp snooping Command
switch# show ip dhcp snooping
DHCP snooping service is enabled
Switch DHCP snooping is enabled
DHCP snooping is configured on the following VLANs:
1,13
DHCP snooping is operational on the following VLANs:
1
Insertion of Option 82 is disabled
Verification of MAC address is enabled
DHCP snooping trust is configured on the following interfaces:
Interface Trusted
------------ -------
vEthernet 3 Yes
show feature Displays the features available, such as DHCP,
and whether they are enabled.
See Example 20-4 on page 20-8.
show ip arp inspection Displays the status of DAI.
See Example 20-5 on page 20-8.
show ip arp inspection interface vethernet
interface-number
Displays the trust state and ARP packet rate for a
specific interface.
See Example 20-6 on page 20-8.
show ip arp inspection vlan vlan-ID Displays the DAI configuration for a specific
VLAN.
See Example 20-7 on page 20-9.
show ip verify source Displays interfaces where IP source guard is
enabled and the IP-MAC address bindings.
See Example 20-8 on page 20-9.
show system internal dhcp {event-history |
mem-stats | msgs}
Debugs any issues in the filter-mode
configuration. See Example 20-9 on page 20-9,
Example 20-10 on page 20-9, and Example 20-11
on page 20-10.
debug dhcp all Enables debug all for DHCP configuration flags
on the VSM. See Example 20-12 on page 20-10.
Command Description