My workstation is on a network, let's say 10.100.0.0/24.

I'm opening up an openVPN Tunnel to a test environment in my company, receiving a lot of routes to this network (address range 172.xx.yy.0). Everything is working fine so far.

In this test environment I placed a number of virtual systems having their own private network (10.99.0.0/24). I have one machine in this virtual cluster which is able to forward incoming IP traffic to the others.

When I login to this gateway system, using the 172.xx.yy.zz address, I can logon to the others using the 10.99.aa.bb addresses. Fine so far.

But I have to be able to call these machines with the 10.99.0.0/24 addresses from my laptop. So I tried to add a route like:

route add -net 10.99.0.0 netmask 255.255.255.0 gw 172.xx.yy.zz

Unfortunately I received an error messages:
SIOCADDRT: No such process

According to the entries in other forum articles (Google helps in most cases), I have to add a host route first:
route add -host 172.xx.yy.zz gw 172.well.defined.dest

But this doesn't help.
Any ideas, what to do next?


Cheers
dtlfwolf

The route add will only work if the VPN tunnel gives you an tun/tap interface with ip range of
172.xx.yy.zz which you are saying can be reached directly. In other words, routes to other networks can only be added to local system when they are pointing to a gateway in the same network as the system you are trying to add the route.

Is your tun/tap interface (i assume openvpn here but correct me if I am wrong) giving ip in the same range as the ip of the lab network ? Otherwise the only option is to ssh to the lab PC and play from there ...