need Openvpn routing help

[Charlie Farinella]

On Friday 13 June 2008, Ben Scott wrote:
> Suggested course of action:
> 
>   Use the "route" command to review the routing tables on the two
> computers.  Just issue the command "route" with no arguments, and it
> should print the routing table.  Or maybe "route -n" to prevent the
> system from wasting time trying to look up names for things.  If
> you're not sure how to interpret the output, post the output (for each
> computer, identifying which is which), and we can check your work.

Ok thank you, here we go, I hope I can explain it well enough for people 
to understand.  

Server -- CentOS 5.1 10.8.8.1
Client1 -- WinXP 10.8.8.10
Client2 -- OpenBSD 10.8.8.6

Client1 and Client2 are on different subnets, 192.168.24.0 and 
192.168.25.0.

I need to create a route from an XP client to 10.10.0.42 on the OpenBSD 
client.  Attempting to set "route add 10.10.0.0 mask 255.255.255.0 
10.8.8.6 if 3" results in failure, " either the interface index is 
wrong ( interface index 3 is the TAP-Win adapter ) or the gateway does 
not lie on the same network as the interface".  10.8.8.6 is pingable 
from this machine and traceroute shows it as one hop, I can ssh in, 
etc.  I get similar error messages (SIOCADDRT: Network is unreachable)  
if I try to set it up on a Linux client.  I don't understand how I have 
to set the gateway, or perhaps I'm misunderstanding what the gateway 
should be.

OpenVPN server:
==
Kernel IP routing table
Destination  Gateway  Genmask  Flags  Metric  Ref  Use  Iface
10.8.8.2        *           255.255.255.255 UH    0      0        0 tun0
63.131.36.0     *        255.255.255.224 U     0      0        0 eth0
10.8.8.0     10.8.8.2       255.255.255.0   UG    0      0        0 tun0
default       63.131.36.1   0.0.0.0         UG    0      0        0 eth0
==

Client1 running XP:
==
Active Routes:
Network Destination     Netmask       Gateway       Interface  Metric
0.0.0.0          0.0.0.0   192.168.24.254  192.168.24.214       20
10.8.8.0    255.255.255.0         10.8.8.9       10.8.8.10       1
10.8.8.8  255.255.255.252        10.8.8.10       10.8.8.10       30
10.8.8.10  255.255.255.255        127.0.0.1       127.0.0.1       30
10.255.255.255  255.255.255.255        10.8.8.10       10.8.8.10       
30
127.0.0.0        255.0.0.0        127.0.0.1       127.0.0.1       1
192.168.24.0    255.255.255.0   192.168.24.214  192.168.24.214       20
192.168.24.214  255.255.255.255        127.0.0.1       127.0.0.1       
20
192.168.24.255  255.255.255.255   192.168.24.214  192.168.24.214       
20
224.0.0.0        240.0.0.0        10.8.8.10       10.8.8.10       30
224.0.0.0        240.0.0.0   192.168.24.214  192.168.24.214       20
255.255.255.255  255.255.255.255        10.8.8.10       10.8.8.10       
1
255.255.255.255  255.255.255.255   192.168.24.214  192.168.24.214       
1
Default Gateway:    192.168.24.254
==

Client2 running OpenBSD:
==
Routing tables
Internet:
Destination     Gateway     Flags    Refs      Use    Mtu  Interface
default           192.168.25.254     UGS         0     2307      -  fxp0
10.8.8/24       10.8.8.5           UGS         0      405      -   tun0
10.8.8.5         10.8.8.6           UH          0        2      -   tun0
10.10.0/24     link#1             UC          0        0      -   xl0
10.10.0.42     00:08:da:61:5c:68  UHLc        0        3      -   xl0
loopback        localhost.corp.app UGRS        0        0  33224   lo0
localhost.corp.app localhost.corp.app UH          0        0  33224   
lo0
192.168.25/24      link#2         UC          0        0      -   fxp0
192.168.25.25      link#2         UHLc        0      411      -   fxp0
192.168.25.254    00:0e:2e:b1:1e:da  UHLc      0        0      -   fxp0
BASE-ADDRESS.MCAST localhost.corp.app URS       0        0  33224   lo0
==

thanks,

--charlie

-- 
------------------------------------------------------------------------
Charles Farinella 
Appropriate Solutions, Inc. (www.AppropriateSolutions.com)
cfarinella at AppropriateSolutions.com
voice: 603.924.6079   fax: 603.924.8668