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Re: doesn't anybody use tunnelling / vpn?



On Mon, Sep 25, 2000 at 09:33:46PM -0700, George Bonser wrote:
> 
> 
> Well, most will require that you build them from source with your current
> kernel source tree someplace ( or at least access to the kernel-headers
> package for the kernel you are running ). Debian has a CIPE package in
> non-us (or did) but I think it is a source package, you need to build it.
> 
> Woody has a vtun package ... vtun is cool but you are going to have to
> know what you are doing ... just like the rest of the packages.
> 
> VTUN is probably best since it will work from behind a firewall (has a TCP
> mode and a SOCKS mode) while CIPE is UDP and you are probably not going to
> get return packets back through the firewall without admin intervention.

tried cipe for five days. no grok. many tears. much hair loss.

tried vtun. same level of success: negative.

tried tunnelv. same.

before i worry about the fancy encryption and all, isn't there a
way to configure a tunl0 or ethertap or netlink device to do quick
and dirty publicly-visible tunnelling?

there's gotta be a primary missing component that i've not got set up.

according to the iproute2 "ip-tunnels.ps" dox much is possible via
simple ip and routing calls:

# ip tunnel add tunl0 mode gre remote 208.7.139.219 local 208.33.90.85
ioctl: No buffer space available
# ipmasq
# ip tunnel add DIODE mode gre remote 208.7.139.219 local 208.33.90.85
# ifconfig DIODE 192.168.0.1
# ip route add 192.168.0.0/24 via 208.7.139.219 dev DIODE onlink
Cannot send dump request: Connection refused
# ip link list
Cannot send dump request: Connection refused
# ip address show
Cannot send dump request: Connection refused
# ip route show
Cannot send dump request: Connection refused
# ip neigh show
Cannot send dump request: Connection refused

regardless of which package i try, i get some constipation like this
that's entirely obscure to me.

# cat /proc/net/dev
Inter-|   Receive                                                |  Transmit
 face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
    lo:25554026  210930    0    0    0     0          0         0 25554026  210930    0    0    0     0       0          0
 tunl0:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
  sit0:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
  eth0:82258414  735457    3    0    3     3          0         0 211845383  519312    0    0    0   158       1          0
  eth1:227361827  394335    6    0    7     6          0         0 128792826  421015    0    0    0   572       0          0
  tap0:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
  tap1:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
  ppp0:      57       0    1    0    0     1          0         0      460      10    0    0    0     0       0          0
   sl0:       0       0    0    0    0     0          0         0      924      11    0    0    0     0       0          0
  gre0:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
 DIODE:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0

what's missing? where do i look?



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