Hi all

I have the following problem

on the interfaces it looks like this

interface FastEthernet0/7<<<<<and 8
 switchport access vlan 5
 switchport mode access
 switchport voice vlan 192
 spanning-tree portfast
 ip verify source
 ip dhcp snooping limit rate 20


I also have the following

ip dhcp snooping vlan 5
ip dhcp snooping information option allow-untrusted
ip dhcp snooping database flash:/dhcpsnoop.dat
ip dhcp snooping database write-delay 120
ip dhcp snooping database timeout 30
ip dhcp snooping


and as uplink to the 192 vlan I have this....

interface FastEthernet0/1
 switchport access vlan 192
 ip dhcp snooping trust

my problem - with no ip verify source I get the voice vlan to work
orwhen I leave out ip verify source and add the VLAN to the Snooping the phones 
also do not work....no IP....

so basically I cannot use ip source guard when I have a voice VLAN or perform 
any sort of DHCP Snooping on this VLAN either......not good.

My main tast was to set up a PC behinf each of the phone on int 7 & 8 and see 
if snooping worked when one was set up as DHCP server but I haven't even got 
that far yet as I would like to get the VoIP VLAN working with Snooping and 
Source Guard !

Google did not help.

maybe a layer 8 problem ..... lets find out :-)
-- 
Fraser Reid

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