I have a router 1811 and I am using SDM software version 2.4. Can I setup VPN on this router? Do I have to buy licence for VPN access. This is for home user? Thanks,
The 1811 is sold as a "security router" and should come with the correct software feature set that will allow you to set up a VPN tunnel. So, you shouldn't need to purchase a separate license.
If you want to use SDM to configure VPN, check out the user guide:
Hope this helps,