[HECnet] MIM?

[Supratim Sanyal]

This is great Johnny - I have been using tshark the best I could so far; your tool will be vastly more helpful.

The circuit with MIM fluctuated for quite a while, I suspect at least an hour. Wonder if anyone else saw that too; if not, there was an unusual network issue with Amazon AWS or somewhere trans-Atlantic.

Thank you,
Supratim

> On Oct 23, 2018, at 8:05 AM, Johnny Eriksson <bygg at cafax.se> wrote:
> 
> Earlier today I wrote:
> 
>> The packet in question is an init packet, used to start up a link.
>> 
>> If tcpdump knew about this, it would look somewhat like:
> 
> Since there really is a need for a tool to examine various kinds of DEC
> protocol traffic, I am trying to put one together.  In case anyone is
> interested:
> 
>  http://https://www.pdc.kth.se/~bygg/tops/anfdump.tar
> 
> Don't let the ANF part of the name fool you!  It can do the following:
> 
>  *  listen for ethernet frames with ANF-10, DECnet and LAT.
> 
>  *  listen for DDCMP (simh-style over TCP or UDP), with decoding
>     of payload (ANF-10 or DECnet).
> 
>  *  listen for Multinet over TCP, with decoding of DECnet.
> 
>  *  do several of the above, in parallel, if you want to see how
>     a box in the middle molests your data.
> 
>  *  read (and write) pcap-format files.
> 
> As usual this is a work-in-progress, and some things (like the manual)
> are missing, but the code mostly works.  Use the -h flag for help at
> this time.
> 
> --Johnny