23 Oct
2018
23 Oct
'18
2:10 p.m.
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