On 10/19/06, Jacob S <[EMAIL PROTECTED]> wrote:
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On Thu, 19 Oct 2006 11:03:20 -0400
"Matt Price" <[EMAIL PROTECTED]> wrote:
> hi,
>
> i'm wondering whether it's possible to route only certain internet
> traffic through a vpn, or to exclude certain ip addresses/ranges from
> the vpn.
>
> my situation is as follows: I work mostly from home and rely on the
> university's vpn to be able to access online journals. ths works
> fine., but when I'm connected to the vpn I can't send mail from my
> home email account (postfix doesn't work properly). I'm wondering
> whether I could contact my smtp host from outside of the vpn somehow.
>
> has anyone tried this and/or any suggestions?
This sounds like you don't have your routing setup properly. I use a
vpn regularly for work and only traffic going to their range of ip
addresses goes through the vpn.
What does "route -n" show on your computer? And how do you connect to
the internet?
to answer both of your questions:
The vpn server runs openvpn, which I also use on my computer as a
client. this vpn sends all internet traffic through itself; I imagine
but don't know for sure that this is done with the redirect-gateway
directive as described in the openvpn howto:
http://openvpn.net/howto.html#redirect
when I'm connected, route -n shows:
n$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
128.100.56.140 192.168.2.1 255.255.255.255 UGH 0 0 0 eth1
142.150.248.1 142.150.248.165 255.255.255.255 UGH 0 0 0 tun0
142.150.248.165 0.0.0.0 255.255.255.255 UH 0 0 0 tun0
192.168.70.0 0.0.0.0 255.255.255.0 U 0 0 0 vmnet1
192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
172.16.137.0 0.0.0.0 255.255.255.0 U 0 0 0 vmnet8
0.0.0.0 142.150.248.165 0.0.0.0 UG 0 0 0 tun0
(vmware server is up, I guess that's what the vmnet1 is about)
this is all uninterpretable to me so help welcome...
thanks,
matt
Jacob
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