[Coco] IP packets on my coco

Ron Klein ron at kdomain.org
Mon Jul 25 09:49:05 EDT 2016


Hi Brett,

More exciting news from you about TCP/IP networking on the Coco!

The whole "my Coco has a MAC address" is a bit surreal...

Love it!

-Ron


On Sun, Jul 24, 2016 at 10:16 PM, Brett Gordon <beretta42 at gmail.com> wrote:

> Ok. This weekend I tore the up-to-date uIP tcp/ip stack out of contiki.
> It's nearly the same as the old uIP.   I modified my lwwire server connect
> up a TAP interface, rather TUN.  TAP basically gets and puts ethernet
> frames, rather than TUN, which works with straight IP packets.   So I guess
> my CoCo has a MAC address now.   A TAP interface takes data in nearly the
> same format (eth frames) as Jim's prototype cs8900a NIC card.  I hope this
> means it will be easy(er) to test the real hardware.
>
> root at lappy:/home/beretta# ping 192.168.42.2
> PING 192.168.42.2 (192.168.42.2) 56(84) bytes of data.
> 64 bytes from 192.168.42.2: icmp_req=1 ttl=64 time=298 ms
> 64 bytes from 192.168.42.2: icmp_req=2 ttl=64 time=197 ms
> 64 bytes from 192.168.42.2: icmp_req=3 ttl=64 time=97.8 ms
> 64 bytes from 192.168.42.2: icmp_req=4 ttl=64 time=297 ms
> 64 bytes from 192.168.42.2: icmp_req=5 ttl=64 time=197 ms
> 64 bytes from 192.168.42.2: icmp_req=6 ttl=64 time=97.2 ms
> 64 bytes from 192.168.42.2: icmp_req=7 ttl=64 time=297 ms
> 64 bytes from 192.168.42.2: icmp_req=8 ttl=64 time=196 ms
> 64 bytes from 192.168.42.2: icmp_req=9 ttl=64 time=96.3 ms
> 64 bytes from 192.168.42.2: icmp_req=10 ttl=64 time=295 ms
> 64 bytes from 192.168.42.2: icmp_req=11 ttl=64 time=195 ms
> 64 bytes from 192.168.42.2: icmp_req=12 ttl=64 time=94.2 ms
> ^C
> --- 192.168.42.2 ping statistics ---
> 12 packets transmitted, 12 received, 0% packet loss, time 11015ms
> rtt min/avg/max/mdev = 94.291/196.860/298.744/82.017 ms
> root at lappy:/home/beretta# telnet 192.168.42.2 80
> Trying 192.168.42.2...
> Connected to 192.168.42.2.
> Escape character is '^]'.
> Let Elvis Reign!
> Connection closed by foreign host.
> root at lappy:/home/beretta#
>
> Cheers,
> brett
>
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