03-14-2012 04:30 PM - edited 03-07-2019 05:34 AM
I can not get dhcp to work... I am pulling my hair out of my head!!!!!! I can ping from the switch to both vlans... HELP!!!!!!!
here is my config for the router.....
Router is a 1760
Current configuration : 1379 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname intra-vlan
!
boot-start-marker
boot-end-marker
!
enable password xxxxxxx
!
no aaa new-model
!
resource policy
!
ip cef
!
!
no ip dhcp use vrf connected
!
ip dhcp pool voip
network 192.168.2.0 255.255.255.0
default-router 192.168.2.1
option 150 ip 192.168.1.103
!
!
!
interface FastEthernet0/0
no ip address
speed 100
full-duplex
!
interface FastEthernet0/0.1
description management VLAN
encapsulation dot1Q 1 native
ip address 192.168.1.252 255.255.255.0
ip nat inside
no snmp trap link-status
!
interface FastEthernet0/0.2
description voip VLAN
encapsulation dot1Q 2
ip address 192.168.2.1 255.255.255.0
no snmp trap link-status
!
interface FastEthernet0/0.3
description Data VLAN
encapsulation dot1Q 3
ip address 192.168.3.1 255.255.255.0
ip nat inside
no snmp trap link-status
!
interface Serial0/0
no ip address
shutdown
no fair-queue
!
ip default-gateway 192.168.1.254
ip route 0.0.0.0 0.0.0.0 192.168.1.254
!
no ip http server
no ip http secure-server
!
!
control-plane
!
!
!
!
!
!
!
!
banner motd ^CC ***************** you have reached intra-vlan router **************** ^C
!
Switch is a 2950
Here is my configuration for my switch
Current configuration : 3892 bytes
!
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname switch
!
!
ip subnet-zero
!
no ip domain-lookup
!
spanning-tree mode pvst
spanning-tree portfast default
no spanning-tree optimize bpdu transmission
spanning-tree extend system-id
!
!
interface FastEthernet0/1
description att gateway to internet ip 192.168.1.254
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/2
description VOIP PHONE
switchport access vlan 2
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/3
description voip phone 7941
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/4
description cisco 1760 router - intra-vlan ip 192.168.1.252
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/5
description linksys ata analog phone
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/6
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/7
description ibm laptop docking station
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/8
description cisco 1760 router - vpn gateway
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/9
description hp laserjet printer ip 192.168.1.250
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/10
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/11
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/12
description sony blu-ray dvd player
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/13
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/14
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/15
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/16
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/17
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/18
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/19
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/20
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/21
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/22
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/23
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
!
interface FastEthernet0/24
description trunk port for poe switch
switchport mode trunk
no ip address
!
interface GigabitEthernet0/1
description elastix server ip 192.168.1.103
no ip address
!
interface GigabitEthernet0/2
no ip address
!
interface Vlan1
description management vlan 1
ip address 192.168.1.249 255.255.255.0
no ip route-cache
!
ip http server
!
banner motd ^CC ************* you have reached the main switch ***************** ^C
!
03-14-2012 05:59 PM
You have configured 2 vlans on your switch (vlan 1 and vlan 2). In this case interface fa0/4 need to be a trunk port and not an access port. You also need a default-gateway on the switch pointing to the manament interface on the router
(192.168.1.252)
From the DHCP can you ping
192.168.1.252
and
192.168.2.1
on the router since you already have a default router, than you don't need this command:
ip default-gateway 192.168.1.254
HTH
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