[c-nsp] Basic DHCP config assistance

[Voll, Scott]

What is routing Vlan 3?

Where is the DHCP scope for Vlan 3?

How does the router now about the vlan's?

Are you using CM and cisco IP Phones for your voice?  If so, why aren't
you using switchport access vlan 1 and switchport voice vlan 3?  

What is your trunk port back to the router?

Scott

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Marcello
Pedersen
Sent: Tuesday, May 24, 2005 10:16 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] Basic DHCP config assistance

Hi,
 
I am trying to get DHCP to work on multiple VLANs. My lab is pretty
simple:
 
Lucent Firewall --> 2651XM router and DHCP  --> 3560 PoE Switch
 
I am trying to have phones on VLAN 3 get IP from 265x1XM as well as PCs
on VLAN 1.
 
PCs get an IP address however the phones don't. I think it is because my
VLAN 3 has no IP address but does it need to have an IP?
 
Thanks!
Marcello
 
My running config on the router:
 
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname ussf2521RT1
!
boot-start-marker
boot-end-marker
!
logging buffered 51200 warnings
enable secret 
 
!
username cisco privilege 15 secre
ip subnet-zero
!
!
ip cef
!
ip dhcp pool ITS
   network 172.25.2.128 255.255.255.128
   option 150 ip 172.25.1.15
   default-router 172.25.2.130
   dns-server 172.25.1.10
!
!
ip domain list 172.25.1.10
ip domain name xyz
ip name-server 172.25.1.10
no ftp-server write-enable
!
interface GigabitEthernet0/0
 description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-GE 0/0$
 ip address 172.25.2.2 255.255.255.128
 ip nbar protocol-discovery
 duplex auto
 speed auto
!
interface GigabitEthernet0/1
 ip address 172.25.2.129 255.255.255.128
 duplex auto
 speed auto
!
interface Serial0/2/1:23
 no ip address
 isdn switch-type primary-qsig
 isdn incoming-voice voice
 no cdp enable
!
ip classless
ip route 0.0.0.0 0.0.0.0 172.25.2.1
!
ip http server
ip http authentication local
ip http secure-server
ip http server
ip http authentication local
ip http secure-server
!
ip access-list extended DHCP
 permit ip host 0.0.0.0 host 255.255.255.255
!
!
end
 
 
version 12.1
no service pad
service timestamps debug uptime
service timestamps log datetime
no service password-encryption
service sequence-numbers
!
hostname ussf3560sw1
 
ip subnet-zero
ip routing
ip dhcp smart-relay
!
ip name-server 172.25.1.10
ip dhcp-server 172.25.2.129
cluster enable ussfinternalnet 0
!
spanning-tree mode pvst
interface FastEthernet0/1
 no ip address
 srr-queue bandwidth share 10 20 40 80
 srr-queue bandwidth shape  0  0  0  0
 no mdix auto
!
interface FastEthernet0/2
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport voice vlan 3
 no ip address
 srr-queue bandwidth share 10 20 40 80
 srr-queue bandwidth shape  0  0  0  0
 no mdix auto
 spanning-tree portfast
 

ALL PORTS CONFIGURED THE SAME 
 

!
interface FastEthernet0/24
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport voice vlan 3
 no ip address
 srr-queue bandwidth share 10 20 40 80
 spanning-tree portfast
!
interface GigabitEthernet0/1
 no ip address
 srr-queue bandwidth share 10 20 40 80
 srr-queue bandwidth shape  0  0  0  0
!
interface GigabitEthernet0/2
 no ip address
 srr-queue bandwidth share 10 20 40 80
 srr-queue bandwidth shape  0  0  0  0
!
interface Vlan1
 ip address 172.25.2.130 255.255.255.128
 ip helper-address 172.25.2.129
!
interface Vlan3
 no ip address
 ip helper-address 172.25.2.129
!
ip default-gateway 172.25.2.130
ip classless
ip route 0.0.0.0 0.0.0.0 172.25.2.129
ip http server
!
!
line con 0
line vty 0 4
 password 5upport2021
 login
line vty 5 15
 password 5upport2021
 login
!
end

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