Cisco – Access a VPN through Hamachi

ciscohamachiroutingvpn

I am trying to solve a problem I have with a Cisco VPN.
Basically, when I work from home, I now use Remote Desktop through Hamachi to work directly with my computer at the office.
Hamachi works fine for this, because no ports need to be opened in the company's firewall.
Only problem is, Hamachi connection is often too slow and because of this, I am now working on my home PC and using Dropbox to get all the changes synced almost in real time on my work PC.
This is OK, but unfortunately there still is something for which I need to RDP to the work PC… which is what I'd like to avoid. Every now and then I need to access some servers through a VPN which I can access from my work PC, but not for home.
Is there anyway I could access the second VPN (a Cisco) from my home PC, through the Hamachi connection to the work PC?

Say
– Hamachi assigns, for example, the IP 5.1.1.1 to my HOME PC
– Hamachi assigns, for example, the IP 5.1.1.2 to my WORK PC
– Cisco VPN assigns the IP 10.0.1.1 to my WORK PC
– One compute I want to access through the Cisco VPN has IP 10.0.0.20

How do I proceed?
I have tried with

route add 10.0.0.0 mask 255.255.255.0 5.1.1.2

on my HOME PC, but nothing changes. I still can't ping any of the 10.0.0.x.
Any ideas?

Thanks in advance!

Best Answer

You could try using OpenVPN instead of Hamachi.

With OpenVPN, you can:

tunnel any IP subnetwork or virtual ethernet adapter over a single UDP or TCP port,

configure a scalable, load-balanced VPN server farm using one or more machines which can handle thousands of dynamic connections from incoming VPN clients,

use all of the encryption, authentication, and certification features of the OpenSSL library to protect your private network traffic as it transits the internet,

use any cipher, key size, or HMAC digest (for datagram integrity checking) supported by the OpenSSL library,

choose between static-key based conventional encryption or certificate-based public key encryption,

use static, pre-shared keys or TLS-based dynamic key exchange,

use real-time adaptive link compression and traffic-shaping to manage link bandwidth utilization,

tunnel networks whose public endpoints are dynamic such as DHCP or dial-in clients,

tunnel networks through connection-oriented stateful firewalls without having to use explicit firewall rules,

tunnel networks over NAT,

create secure ethernet bridges using virtual tap devices, and

control OpenVPN using a GUI on Windows or Mac OS X.