Intranet VPN
Many VPNs, of different companies, can be created on the same shared IP backbone infrastructure of a Service Provider. This is one of the reasons why VPNs are far less expensive for companiesthan full private networks based on a WAN infrastructure.
VPN shared ip - intranet
A complete VPN solution therefore incorporates encrypted tunneling, QoS,security, management, and provisioning capabilities, to create a reliable communications infrastructure.
Intranet – Remote Access VPNs
Remote access to company resources is a requirement for most organizations.
Employees are working from home, organizations are hiring remote employees who might not ever report to an office, and even vendors supporting or consulting for an organization do so remotely.
Remote Access VPNs, sometimes referred to as Virtual Private Dial Networks or VPDNs, provide remote users access to the company’s Intranet, whenever, wherever and however they require.
In general, remote employees(teleworkers) or mobile users will connect to a local Point of Presence, or POP, of the Service Provider, to access their company’s network.
Through this provider network, or the through the Internet, tunnels are routed to the corporate gateway. These tunnels are secured and encrypted by, for instance, the IPSec or the LT2P protocols.
IP Security, or IPsec for short, is a framework of standards that provides the following key security features at the network layer between two peer devices:
- Data confidentiality
- Data integrity
- Data authentication
- Anti-replay detection
- Peer authentication
L2TP has minimal built-in security. The LAC and LNS can authenticate each other during tunnel setup, and most AVPs can be encrypted, but L2TP, like PPTP, depends on PPP to protect the user data in the tunnel.
Remote access to the company network can happen in flexible ways, using technologies such as dial-up, DSL, ISDN, or cable.
remote-access-vpn
6 Responses to “Intranet VPN”
If I am connected to virtual private network my internet connection won’t work. Why?
Depends how your virtual private network is setup. Maybe your VPN have its own proxy server that controls who access the internet.
A genuinely secure virtual private network will tunnel all traffic into the target of the VPN.
If you want to access the internet directly and to connect to vpn at the same time you need to use split tunneling, and you need to decide what traffic should be tunneled into work, and what should be allowed out.
How do I set up a VPN between two offices in different cities ? VPN hardware or VPN software ?
You can choose a company to install VPN for you, but it is not cheap.
Also you can do it yourself by installing at each location a router between your network and modem to the Internet.
The performance and interoperability depends on your budget, which type of hardware and software you can permit to buy and implement.
First, based on budget and uptime, getting some decent VPN routers will cost approximately $500-$800 each.
You have to know where your DHCP addreses are comming from, either a router or server if the workstations are setup with static IP addresses or not.
I recommend buying Cisco routers , because the support from Cisco will help you get them setup.
Is it possible to vpn into a network from an internet cafe ?
Yes, you can connect, but it is possible that the internet cafe to block this type of access.
interesting post
a very good article about Intranet VPN