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Remote Access Vpn Configuration


CONFIGURATION


1. Remote User COMMUNICTE PAKISTAN LAN PUBLIC IP : 202.56.215.2  BUT NOT COMMUNICATION ON LAN NETWORK IP  : 192.168.100.1

2.  Remote User PING LAN FTP SERVER  BUT THY DO NOT PING SERVER.

3.  WHEN YOU CONNECTED VPN AND THEN AGAIN PING LAN FTP SERVER . 

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FIRST REMOTE USER COMMUNICATE ON LAN PUB IP BUT DO NOT COMMUNICATE ON LAN IP.

ALL INTERFECES LINKED UP AND PERFORM ROUTING.

GO TO Company-Router CONFIGURATION MODE.


Router(config)  hostname  Company-Router

CREAT A LOCAL AUTHENTICATION FOR VPN

Company-Router(config)#  aaa new-model

Company-Router(config)#   aaa authentication login WAHAB local

Company-Router(config)#   aaa authorization network HANAN local

Company-Router(config)#    username Manan password Taimoor

CREAT A ISAKMP POLICY FOR VPN

THIS POLICY DEFINES THE ENCRYPTION AND AUTHENTICATION ALGORITHMS THAT WILL BE USED TO PROTECT THE TRAFFIC THAT FLOWS THROUGH THE VPN TUNNEL.

Company-Router(config)#   crypto isakmp policy 10

3DES: TRIPLE DATA ENCRYPTION STANDARD.

 THIS IS A SYMMETRIC ENCRYPTION ALGORITHM THAT USES THREE KEYS TO ENCRYPT DATA.


Company-Router(config-isakmp)#  encryption 3des

Company-Router(config-isakmp)#     hash md5

Company-Router(config-isakmp)#   authentication pre-share

Company-Router(config-isakmp)#    group 2 

Company-Router(config-isakmp)#  exit

CREAT A VPN GROUP AND KEY AND APPLIED IP ADDRESS

Company-Router(config)#   ip local pool VPNPOOL 200.200.200.1 200.200.200.100

Company-Router(config)#   crypto isakmp client configuration group cisco

Company-Router(config-isakmp-group) #  key cisco123

Company-Router(config-isakmp-group)#   pool VPNPOOL

Company-Router(config-isakmp-group)# exit

CREAT A  IPSEC TUNNEL USED TO ENCRYPTED DATA

THIS TRANSFORM SET SPECIFIES THE SPECIFIC ENCRYPTION AND AUTHENTICATION ALGORITHMS THAT WILL BE USED FOR A PARTICULAR TRAFFIC FLOW.

Company-Router(config)#   crypto ipsec transform-set set1 esp-3des esp-md5-hmac

CREAT A MAP FOR VPN

THIS CRYPTO MAP ASSOCIATES AN IPSEC POLICY AND TRANSFORM SET WITH A SPECIFIC INTERFACE.

Company-Router(config)#      crypto dynamic-map map1 10

Company-Router(config-crypto-map)#   set transform-set set1

Company-Router(config-crypto-map)#    reverse-route

Company-Router(config-crypto-map)#  exit

APPLIED AUTHENTICATION AND AUTHORIZATION FOR VPN

Company-Router(config)#   crypto map map1 client configuration address respond

Company-Router(config)#   crypto map map1 client authentication list WAHAB
 
Company-Router(config)#     crypto map map1 isakmp authorization list HANAN

Company-Router(config)#      crypto map map1 10 ipsec-isakmp dynamic map1

VPN CONFIGURATION APPLIED ON INTERFACE

THIS WILL ENABLE IPSEC ON THE INTERFACE AND ALLOW TRAFFIC TO FLOW THROUGH THE VPN TUNNEL.

Company-Router(config)#    interface FastEthernet0/0

Company-Router(config)#     crypto map map1

VPN CONFIGURATION IS DONE GO TO REMOTE USER AND CONNECT VPN AND COMUNICATION CAN BE DONE.



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