Naturally that brings us onto Phase 2 (IPSec), which is how the already authenticated users are going to securely encrypt there traffic between the router and client. So the above configuration was mostly for Phase 1 (ISAKMP) of the tunnel, really this is concerned with securely authenticating the users and defining how were going to configure them on the network once they’re connected. (If you want to redirect the client’s DNS queries you could also do that here with the ‘dns’ setting, however theres usually not much point in that unless you have some kind of intranet.) crypto isakmp client configuration group oracle
#CISCO VPN SETUP PASSWORD#
In the below configuration my group is ‘oracle’ and we’re using a shared password of ‘qwerty’, you should also notice this is where we’re referencing the ip address pool that these clients will be given, and the access list that defines where they’re allowed to go within our network ‘vpn_resources’ Now we need to define the group, the group name and group key that you pick here will need to be also entered on all of the clients that are using the VPN (laptops/iphones etc…), so you want to pick something secure but something that you also don’t mind disclosing to people with VPN access. There are more secure settings than what I’m using in the policy below, however you’re realistically going to have more compatibility problems as you tune up these, and the below are still very secure for most installs. IPsec uses two different phases for user authentication and traffic encryption, therefore we need to create two different policies. Now normally when a client to connects to our VPN we want it to send all traffic to us for the LAN, there’s usually no point in sending internet or DNS traffic to us if they already have an internet connection, we do that with an access list.īasically the below is saying ‘any’ of the clients have access to ‘192.168.0.0/24’, you should be able to modify to your specific requirements. Next we need to create an IP pool that we’ll use to give the VPN clients unique IP addresses that appear to be on the LAN (VLAN1), the second step is to ensure that we don’t hand out these same IP’s as part of the normal DHCP process. Username vpn_username password 0 vpn_password 2) IP Address Pool So the first part is to enable authentication on the router so that we can create users and have the VPN authenticate against these, you could also use an external radius server however if you’ve only got a few users this is going to be simpler to manage aaa new-modelĪaa authentication login vpn_xauth_ml_1 localĪaa authorization network vpn_group_ml_1 local If you need a base configuration for a Cisco 887 look at the post here, otherwise jump straight into it below! 1) Enable Authentication The guide will assume you’ve already got your LAN (VLAN1) and WAN (PPPoE/A on Dialer1) setup and working, also it assumes you have some Cisco knowledge to actually get the commands applied in the right places as I wont be covering the basics. There’s a few different ways of doing this however we’re going to use IPSec, mainly because it’s more secure than the alternatives and doesn’t require any third party clients to get it working (most of the time).
#CISCO VPN SETUP HOW TO#
To disconnect, click on the VPN Icon in the menu bar and click "Disconnect VPN (IPSEC)".This is going to be a quick guide on how to setup VPN access on your Cisco router (in my case a Cisco 887 router with VDSL), for remote clients to access your network and get access to the local resources. From the pulldown menu, click "Connect VPN (IPSEC)"ġ1. Back, on the Network Settings page, enter "" as the Server Address, your username for Account Name and then click the Show VPN Status in Menu Bar box. Enter "vpn4tech" for the Shared Secret and gatech for the Group Name. You should now be back at the Network Settings screen.ĥ. Select Interface: VPN and then VPN Type: Cisco IPSEC and click "Create".Ĥ. Click on the "+" sign in the lower left to add a new service.ģ. Open System Preferences and click on "Network".Ģ. See the step by step instructions below:ġ.
OS X 10.6 and above has a built in Cisco IPSEC VPN Client that can be used to connect to the Georgia Tech VPN rather than using the Cisco IPSEC or An圜onnect clients. NOTE: You must use your current Georgia Tech credentials to begin the installation. When connecting to the Georgia Tech VPN service, it is recommended that you use the An圜onnect client which can be downloaded and installed from HERE. For a complete description of this service and it's features, please click here.