I have to implement an IP Telephony to a customer site. My customer has already a Cisco 2821 running dhcp on it and a Catalyst 2950 . Now for telefony I have a Cisco 2851 a 2960G and few 2960.
My problem is how can I keep his old dhcp pool for the data vlan and to add a new dhcp to voice vlan?
And another problem is that I don't have any access on the 2821 old customer router.
Temporarly for testing I have made this config on 2851:
no ip dhcp use vrf connected
ip dhcp excluded-address 10.10.10.1 10.10.10.10
ip dhcp excluded-address 192.168.10.1 192.168.10.10
ip dhcp pool phone
network 10.10.10.0 255.255.255.0
option 150 ip 10.10.10.1
ip dhcp pool data
network 192.168.10.0 255.255.255.0
description ** assign static IP address to the interface **
ip address 192.168.40.32 255.255.255.0
ip nat outside
no ip address
no ip mroute-cache
description ** Voice VLAN **
encapsulation dot1Q 100
ip address 10.10.10.1 255.255.255.0
service-policy output output-L3-to-L2
description ** Data VLAN **
encapsulation dot1Q 200 native
ip address 192.168.10.1 255.255.255.0
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 192.168.40.1
The customer DHCP is: 192.168.40.1-254 255.255.255.0
Thanks in advance!