VPN connection between two sites

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Mar 18th, 2010
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Please i want to configure site to site VPN between my company head office router and my company branch routers through a firewall wall to access sets of linus servers at the head office.please i need simple documentation or sample configuration to achieve this.Also i would like to know where the firewall will come in and what is the configuration for it.thanks for usual assistance on this forum

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Federico Coto F... Thu, 03/18/2010 - 12:22
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This is a simple document that shows how to establish a Site-to-Site VPN between two cisco routers (including a VPN client also):


Also, if the tunnel goes through a Firewall, make sure the following is allowed:

Protocol ESP

UDP port 500

UDP port 4500



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