[YLUG] Tunneling

[Harry Mills]

Hi,

How do the 144.32 addresses have an external IP? What is the external IP
for them?

Regards,
HJMills

On Wed, 2007-10-10 at 12:10 +0100, Paul Gibbs wrote:
> Dr P Dupre wrote:
> > Hello,
> >
> > I am trying to access to my linux PC on the campus from my home but I 
> > experience some difficulties.
> > I configure the vpn pptp and I was connect to vpn.york.ac.uk
> >
> > success: Successful connected to server "vpn.york.ac.uk" user: 
> > "pd520 at york.ac.uk" at Wed Oct 10 10:27:35 2007 [PPTP]
> > success: Connection established.
> >
> > But it is not enough I cannot tunnel:
> > netstat -nr gives:
> >
> > Destination     Gateway         Genmask         Flags   MSS Window  
> > irtt Iface
> > 172.26.2.1      0.0.0.0         255.255.255.255 UH        0 0          
> > 0 ppp0
> > 82.3.204.0      0.0.0.0         255.255.252.0   U         0 0          
> > 0 eth0
> > 169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          
> > 0 eth0
> > 0.0.0.0         82.3.204.1      0.0.0.0         UG        0 0          
> > 0 eth0
> >
> > If I do:
> > route add -net 144.32.0.0 netmask 255.255.0.0 gw 172.26.2.1
> > (My machine is in 144.32.52)
> >
> > It does not help either.
> What is the IP address and mask of your PC on campus? I suspect it does 
> not begin with 144.32, if it did you wouldn't need a VPN to access it as 
> it would already have a global IP address. You don't need the 144.32 route.
>  
> It's more likely that machines on campus that do not require external 
> access will have a NATed IP address probably also beginning with 172.26.
> 
> Try adding a route 172.0.0.0 mask 255.0.0.0 through your VPN Gateway.
> If you are accessing the machine by name you may also need to specify a 
> university DNS server as your primary DNS.
> 
> Paul.<><
> >
> > ------------------------------------------------------------------------
> >
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> > York at lists.lug.org.uk
> > https://mailman.lug.org.uk/mailman/listinfo/york
> >   
> 
> 
> 
Regards, 
HJMills 

http://hjmills.co.uk 

I'm glad I was not born before tea. -- Sidney Smith (1771-1845)