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Remote VPN

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Remote VPN

Remote VPN allow secure access to corporate resources by establishing an encrypted tunnel across the Internet. The ubiquity of the Internet, combined with today’s VPN technologies, allows organizations to cost-effectively and securely extend the reach of their networks to anyone, anyplace, anytime.

VPNs have become the logical solution for remote-access connectivity for the following reasons:

  • Provides secure communications with access rights tailored to individual users, such as employees, contractors, or partners.
  • Enhances productivity by extending corporate network and applications.
  • Reduces communications costs and increases flexibility.

Example Configuration of Remote VPN

Configuration Topology of Remote VPN
Configuration Topology of Remote VPN

(Note: R1 able to reach R3.)

R3 (Server)

crypto isakmp policy 1
authentication pre-share
encryption 3des
group 2
hash sha
lifetime 1800
exit


crypto ipsec transform-set tset esp-sha-hmac esp-3des
exit


ip local pool pool1 192.168.100.1 192.168.100.254

crypto isakmp client configuration group Test
key cisco
domain cisco.com
save-password
pool pool1
exit


crypto dynamic-map DMAP 10
set transform-set tset
reverse-route
exit


crypto map CMAP 10 ipsec-isakmp dynamic DMAP
crypto map CMAP isakmp authorization list default
crypto map CMAP client authentication list defualt


aaa new-model
aaa authentication login default local
aaa authorization network default local


username cisco password cisco

int f0/0
crypto map CMAP
exit

R1 (Client)

crypto ipsec client ezvpn EZvpn
mode client
connect auto
peer 102.1.1.100
group Test key cisco
username cisco password cisco


int f0/0
crypto ipsec client ezvpn Ezvpn outside
exit


int f0/1
crypto ipsec client ezvpn Ezvpn inside
exit

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