The current device driver on Digital UNIX can drop packets if the PACKET is
larger the MTU size. (1500 Bytes).  This patch will fix the problem.
You will need to follow these steps to fix the problem.  Copy itndriver.c to
/usr/opt/DTU100/itndriver.c.  Then you need to rebuild your kernel.
# doconfig -c SYSTEMNAME
After the kernel is built copy it to root and reboot.
# cp /sys/SYSTEMNAME/vmunix /
# reboot

The new device driver should be in place so start the tunnel and try
your app.  If this is a group to group tunnel you will need to do it
on both Digital UNIX boxes.


