IP tunneling problem

IP tunneling problem

Post by Daniel Ha » Sat, 11 Nov 1995 04:00:00



I'm having a problem getting tunneling to work right with some newer
kernel revisions. I have one machine (rama) that connects to the
Internet via PPP and is dynamically assigned an IP address. I'm using
a tunnel to another machine (bart) so that I can fake having a
permanent address.

If I run 1.2.13 on rama (with either 1.2.13 or 1.3.32 on bart) everything
works fine. If I run 1.3.32 or 1.3.37-39 on rama, I get error messages
like this when a packet comes in over the tunnel:

Quote:> rama kernel: tunl0: Received inbound packet -- not handled.

Here's how I set things up on rama:

Quote:> ifconfig tunl0 $rama_p pointopoint bart netmask 255.255.255.0
> route add bart dev ppp0
> route add default dev tunl0

and here's what I run on bart:

Quote:> ifconfig tunl0 bart pointopoint $rama_d netmask 255.255.255.0
> route add rama dev tunl0
> arp -s rama xx:xx:xx:xx:xx:xx pub

where $rama_p is rama's "permanent" address and $rama_d is the address
it's assigned for the PPP link.

rama is using PPP 2.2.0c and (for the 1.2.13 kernel) Sam Lantinga's
tunnel driver dated 03/20/95 v0.02.

Any suggestions?

Daniel

 
 
 

IP tunneling problem

Post by Piercarlo Gran » Fri, 17 Nov 1995 04:00:00


Daniel> I'm having a problem getting tunneling to work right with some newer
Daniel> kernel revisions.

They are buggy -- if you are not a kernel hacker you should not be using them.

Daniel> If I run 1.2.13 on rama (with either 1.2.13 or 1.3.32 on bart)
Daniel> everything works fine. If I run 1.3.32 or 1.3.37-39 on rama, I
Daniel> get error messages like this when a packet comes in over the
Daniel> tunnel:

the 1.3.3x versions have lots of problems with the networking code; have
you seen the size of the patches between those versions? there is a lot
of new material. However 1.3.40, and 41, seem to be OK.

 
 
 

IP tunneling problem

Post by Todd Fri » Sun, 19 Nov 1995 04:00:00


: the 1.3.3x versions have lots of problems with the networking code; have
: you seen the size of the patches between those versions? there is a lot
: of new material. However 1.3.40, and 41, seem to be OK.

After having 1.3.41 do a couple of seg faults that ended up (twice) in
having my pc scrolling 4 columns of 8 digit hex digits at or faster than
sync speed, um, I decided to up to 1.3.42, and hope for the best.  My
computer is still online, so I guess that is good...

--

<a href=http://www.cs.umr.edu/~tfries/>My Homepage!</a>