IP DHCP snooping

From: amin <amin_at_axizo.com>
Date: Sat, 10 Dec 2011 11:13:29 +0200

Hi experts,

 

I have a strange issue in configuring DHCP snooping

 

Ip dhcp snooping

Ip dhcop snooping vlan 1

 

Int f0/1 ! to the PC

Int f0/2 ! to the DHCP server

Ip dhcp snooping trust

 

But still it is not working, the PC is not getting ip address, here the
debug

 

00:08:29: DHCP_SNOOPING: received new DHCP packet from input interface
(FastEthernet0/2)

00:08:29: DHCP_SNOOPING: process new DHCP packet, message type: DHCPDISCOVER

00:08:29: DHCP_SNOOPING_SW: Encoding opt82 in vlan-mod-port format

00:08:29: DHCP_SNOOPING_SW: bridge packet get invalid mat entry:
FFFF.FFFF.FFFF, packet is flooded to ingress VLAN: (1)

00:08:29: DHCP_SNOOPING_SW: bridge packet send packet to port:
FastEthernet0/1.

00:08:46: DHCP_SNOOPING: received new DHCP packet from input interface
(FastEthernet0/2)

 

00:08:46: DHCP_SNOOPING: process new DHCP packet, message type: DHCPDISCOVER

00:08:46: DHCP_SNOOPING_SW: Encoding opt82 in vlan-mod-port format

00:08:46: DHCP_SNOOPING_SW: bridge packet get invalid mat entry:
FFFF.FFFF.FFFF, packet is flooded to ingress VLAN: (1)

00:08:46: DHCP_SNOOPING_SW: bridge packet send packet to port:
FastEthernet0/1.

00:08:51: DHCP_SNOOPING: received new DHCP packet from input interface
(FastEthernet0/1)

 

00:08:51: DHCP_SNOOPING: process new DHCP packet, message type: DHCPDISCOVER

00:08:51: DHCP_SNOOPING_SW: bridge packet get invalid mat entry:
FFFF.FFFF.FFFF, packet is flooded to ingress VLAN: (1)

00:08:51: DHCP_SNOOPING_SW: bridge packet output port set is null, packet is
dropped.

00:08:55: DHCP_SNOOPING: received new DHCP packet from input interface
(FastEthernet0/1)

00:08:55: DHCP_SNOOPING: process new DHCP packet, message type: DHCPDISCOVER

 

Regards,

Amin

Blogs and organic groups at http://www.ccie.net
Received on Sat Dec 10 2011 - 11:13:29 ART

This archive was generated by hypermail 2.2.0 : Sun Jan 01 2012 - 08:27:00 ART