Archive for the ‘CCNP’ Category

Learn how to configure IPSEC site to site vpn on cisco router using cisco Packet Tracer.As we all know IPsec provides secure transmission of sensetive data over unprotected networks like internet.So what actually IPsec does is it acts at the network layer which means its working in network layer of TCP/IP model and protecting sensitive data and authenticate IP packets only between participating IPsec devices like cisco routers. here in this IPSEC Example lab Router0 and Router1 is is participating in IPsec peers.So in this acitivity or in this lab i will configure these two routers to support a site to site IPsec VPN for traffic flowing from their respective LANs.

ipsec configuration

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In this tutorial we will learn how to configure and use vpn on routers.We will learn to create a vpn tunnel between routers for safe communication.

vpn

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In this tutorial we will learn how to configure router as a terminal server or an access server.Here in below diagram Router0 is working as a terminal server or you can say an access server.

So what this actually mean?

It means if a client seating on PC0 will try to login to router r1, r2,r3,r4 or r5 he/she cannot be able to access these routers directly,he/she must have to go through Router0 which is an access server.

router as terminal server

 

 

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In previous lab we have learnt how to configure OSPF clear text authentication,and now in this lab we will learn how to configure OSPF MD5 authentication which more secure than clear text authentication.Configuring OSPF MD5 authentication is very similar to configuring clear-text authentication. (more…)