SLIP6 connects byt does nothihg

[hawk@eyry.econ.iastate.edu (Richard E. Hawkins Esq.)]

After some diddling, I'm trying SLIP in addition to PPP (hardware
flow control is killing me).

I seem to be successfully making a SLIP6 connection, but it doesn't

Given the troubles with my hardware flow control & PPP, I've tried
SLIP.  I've installed sliplogin & slirp at both ends, and both
kernels have a module for slip with 6 bit.

The cnnection claims to start:


CONNECTED to 129.186.32.221 with address 129.186.32.181
>> mode SLIP6
Found protocol "SLIP6"  returning 3
Got protonr = 3
hawkins:/home/hawk# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
eyry.econ.iasta *               255.255.255.255 UH    0      0        0 sl0
127.0.0.0       *               255.0.0.0       U     0      0        0 lo
default         eyry.econ.iasta 0.0.0.0         UG    1      0        0 sl0


but I can't get any life from the connection: 

hawkins:/home/hawk# ping 129.186.32.221
PING 129.186.32.221 (129.186.32.221): 56 data bytes

will sit forever without a response.

Am I missing something that's necessary to make the connection usable?

rick