14 Jun
2015
14 Jun
'15
11:57 a.m.
On 6/13/15 9:39 PM, Jann Traschewski wrote:
1. Around 99% of all webcams on the HAMNET are *only*
reachable if you
establish the connection using a *source-44* ip address. Do you think
this restriction is enough if you don't want to expose the webcam to the
internet but want to share with other AMPRNet users?
No. There is no guarantee that a 44/8 source IP is a ham. There is no
guarantee that a 44/8 sourced packet will comply with $REGULATORY restrictions
as they differ across the world.
There is a large chance that a 44/8 source address is a licensed ham, but it's
not enforced (and shouldn't be).
If you want to restrict it to licensed ham radio operators you will need a
different AAA method.
The other issue here is if you're using the UCSD gw for providing access from
the internet, there will be a number of directly attached 44 networks who use
BGP that will be unable to view your cams.
2. We tell our HAMNET users to put the route
44.0.0.0/8 via <wireless
router to HAMNET access point> into their DSL/cable routers. Some
well-known internet services for radio amateurs are nowadays hosted on
the internet using network44 addresses. Who needs to be blamed if the
connection from the HAMNET user to the well-known internet service is
not as stable as expected by the user?
Well this depends, is the route via the cable/dsl router for 44net through
your gateway to the internet or via the UCSD gw?
What is the faster connection? Here in the US most HamWAN are able to do
20+mbit, while DSL is going to top at 8/1.5 mbit down. Cable will be faster,
but the upstream will be limited to 1 or 2mbit/s in most areas.
My preference is to use the wireless connection for the HamWAN connection with
a tunnel for backup. This tunnel is built to the edge routers, not the
AMPRNET IPIP tunnels.
BTW, I'm thinking of going to the HAMRADIO hamfest in Germany in a few weeks,
will you be there? Looks like I might be flying into Zurich and driving up,
got some friends in northern Germany I'd like to visit too.
73's
--
Bryan Fields
727-409-1194 - Voice
727-214-2508 - Fax
http://bryanfields.net