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We want to create a small VoIP network. After configuring the switch, route,r windows server and

asterisk server and the telephone extensions in each side we cant connect to the other group

telephone. The network is composing of two router two switche 2 desktelephone SIP compatibles and 2

servers:

ASTERISK 2.10 Server 2

FREEPBX 2.10

Windows server 2008 R2 Server 1

CISCO Switch CATALYST 2950 SERIES IOS 12.1

Router cisco 1760

Configurations:

Switch version 12.1

no service pad

service timestamps debug uptime

service timestamps log uptime

no service password-encryption

!

hostname GrupoA

!

enable password cisco

!

ip subnet-zero

!

spanning-tree mode pvst

no spanning-tree optimize bpdu transmission

spanning-tree extend system-id

!

interface FastEthernet0/1

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description Windows Server

switchport access vlan 10

switchport mode access

!

interface FastEthernet0/2

description Asterisk Server

switchport access vlan 10

switchport mode access

!

interface FastEthernet0/9

description Computer

switchport access vlan 20

switchport mode access

!

interface FastEthernet0/10

description Computer

switchport access vlan 20

switchport mode access

!

interface FastEthernet0/11

description VoIP

switchport access vlan 30

switchport mode access

!

interface FastEthernet0/12

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description VoIP

switchport access vlan 30

switchport mode access

!

!

interface FastEthernet0/24

description Test Port Trunk

switchport trunk allowed vlan 10,20,30

switchport mode trunk

!

interface Vlan1

no ip address

no ip route-cache

shutdown

!

interface Vlan2

description GrupoA Connection for Managment

ip address 10.255.255.2 255.255.255.248

no ip route-cache

!

ip default-gateway 10.255.255.1

ip http server

!

line con 0

password cisco

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line vty 0 4

password cisco

login

line vty 5 15

login

Router

Grupo1-RT#show run

Building configuration...

Current configuration : 1802 bytes

!

version 12.3

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname Grupo1-RT

!

boot-start-marker

boot-end-marker

!

enable password cisco

!

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mmi polling-interval 60

no mmi auto-configure

no mmi pvc

mmi snmp-timeout 180

no aaa new-model

ip subnet-zero

ip cef

!

!

!

no ftp-server write-enable

!

!

!

!

interface Loopback0

description Router ID for OSPF

ip address 1.1.1.1 255.255.255.255

!

interface Ethernet0/0

description BkBn Connection to R4 | Int s1/0

ip address 192.168.255.6 255.255.255.252

ip ospf network point-to-point

half-duplex

!

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interface FastEthernet0/0

description Group1 Connection to Grp1-SW1 | Int 6

no ip address

speed auto

!

interface FastEthernet0/0.2

description Group1 Connection for Equipment Management

encapsulation dot1Q 2

ip address 10.255.255.1 255.255.255.248

!

interface FastEthernet0/0.10

description Group1 Connection for Servers

encapsulation dot1Q 10

ip address 172.16.0.1 255.255.255.240

!

interface FastEthernet0/0.20

description Group1 Connection for PCs

encapsulation dot1Q 20

ip address 172.17.0.1 255.255.255.224

ip helper-address 172.16.0.6

!

interface FastEthernet0/0.30

description GroupA Connection VoIP

encapsulation dot1Q 30

ip address 172.18.0.1 255.255.255.224

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ip helper-address 172.16.0.6

!

--More--

*Mar 2 09:10:23.639: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on Ethernet0/0 (not

full duplex), with Bkbn-Sw FastEthernet0/1 (fulinterface Ethernet1/0

no ip address

shutdown

half-duplex

!

router ospf 1

router-id 1.1.1.1

log-adjacency-changes

network 1.1.1.1 0.0.0.0 area 10.1.0.1

network 10.255.255.1 0.0.0.0 area 10.1.0.1

network 172.16.0.1 0.0.0.0 area 10.1.0.1

network 172.17.0.1 0.0.0.0 area 10.1.0.1

network 172.18.0.1 0.0.0.0 area 10.1.0.1

network 192.168.255.6 0.0.0.0 area 10.1.0.1

!

ip classless

no ip http server

!

!

line con 0

line aux 0

line vty 0 4

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password cisco

login

!

DeskPhone Extension Configuration:

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Trunk Configuration

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Assignment IP address

Windows 2008 R2 172.16.0.6

AsteriskNow 2.0 172.16.0.7

Servers Gateway 172.16.0.1

Servers Network

mask & Range

255.255.255.240

172.16.0.1-172.16.0.14

Client-PCs Network 255.255.255.224

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Mask & Range 172.17.0.1-172.17.0.30

LAN VoIP Network

Mask & Range

255.255.255.224

172.18.0.1-172.18.0.30

Server MAC address

Windows Server 00:1B:78:75:75:48

AsteriskNow 2.0 00:1A:A0:D2:78:85