[mobius-development] Networking

[Tim R. <ti...@ga...>]

Hey all,

Here's a first: networking for The Mobius. Pinging a Mobius machine now
works! :D

I swapped my RTL8139 card from my main machine into my test machine and
wrote a driver for it. After a bit of hacking with ARP, IP and ICMP (and
a steep learning curve), it's now possible to ping in either direction
-- although the Mobius host dies if the ping packet is fragmented (i.e.
if you set the size too big).

[H:\unix\mn\src\drivers\rtl8139] ping 192.168.0.200 -t

Pinging 192.168.0.200 with 32 bytes of data:

Reply from 192.168.0.200: bytes=32 time=40ms TTL=128
Reply from 192.168.0.200: bytes=32 time=20ms TTL=128
Reply from 192.168.0.200: bytes=32 time=30ms TTL=128
[etc.]

Here's some statistics:

Ping statistics for 192.168.0.200:
    Packets: Sent = 316, Received = 309, Lost = 7 (2% loss),
Approximate round trip times in milli-seconds:
    Minimum = 20ms, Maximum =  41ms, Average =  25ms

Bear in mind that the 2% loss is achieved over just a couple of metres
of network cable...

-- 
Tim Robinson <tim...@ic...>