[nos-bbs] Success VARA HF IP Bridge (PPP)

M Langelaar maiko at pcsinternet.ca
Fri Jan 15 23:18:28 EST 2021


I'm a bit speechless ...

It would appear that I have successfully developed an IP BRIDGE over
VARA HF modem for JNOS. With some mods to the JNOS ppp code,
and integrating into the VARA HF interface I've been working on, I now
actually have an active telnet going on between my 2 JNOS test sites,
both linked to each other via trial copy of VARA HF modem software
over hard wired audio.

It's working flawlessly. I would love to see how fast it is in a real
environment. I need to tidy up stuff, make it more automatic, and
really document the heck out of this, but yes ... appears to work.

This is basically what SCS is doing with their Pactor IP Bridge.

Maiko / VE4KLM

site a ::

attach vara vara0 1500 192.168.1.20 8300

varacmd "mycall ve4klm"
varacmd "connect ve4klm ve4pkt"

site b :

attach vara vara0 1500 10.1.1.2 8300

varacmd "mycall ve4pkt"
varacmd "listen on"

After  physical connect established, both sides run :

   ppp vara0 trace 2
   ppp vara0 lcp timeout 60000
   ppp vara0 lcp open
   ppp vara0 ipcp timeout 60000
   ppp vara0 ipcp open

Timeouts have to be large, I will document all of this, very excited !

F9 trace window

Fri Jan 15 22:12:03 2021 - vara0 sent:
PPP: len 104    protocol: IP
IP: len 100 172.16.72.1->172.16.72.4 ihl 20 ttl 254 prot TCP
TCP: 23->1030 Seq xa66c161 Ack xf22c034 ACK PSH Wnd 2048 Data 60
0000  ff 03 00 21 45 00 00 64 03 da 00 00 fe 06 d0 93 ...!E..d.Z..~.P.
0010  ac 10 48 01 ac 10 48 04 00 17 04 06 0a 66 c1 61 ,.H.,.H......fAa
0020  0f 22 c0 34 50 18 08 00 48 ed 00 00 55 73 65 72 ."@4P...Hm..User
0030  73 3a 0d 0a 54 65 6c 6e 65 74 20 20 20 28 76 65  s:..Telnet (ve
0040  34 6b 6c 6d 20 40 20 31 37 32 2e 31 36 2e 37 32  4klm @ 172.16.72
0050  2e 34 29 20 20 2d 3e 20 49 64 6c 65 0d 0a 0d 0a  .4)  -> Idle....
0060  28 23 30 29 20 3e 0d 0a                          (#0) >..


jnos> ppp vara0

Network Protocol Phase  (open for 0:00:22:54)
       4196 In,         126 Flags,     0 ME,      0 FE,      0 CSE,      
0 other
                     70 Lcp,     0 Pap,    41 IPcp,     0 Unknown
       4312 Out,        135 Flags,     0 ME,      3 Fail
                     72 Lcp,     0 Pap,    41 IPcp
LCP Opened
                  MRU     ACCM            AP      PFC  ACFC Magic
         Local:   1500    0xffffffff      None    No   No   unused
         Remote:  1500    0xffffffff      None    No   No   unused
PAP Closed
         Message: 'none'
IPCP Opened
         local IP address: 172.16.72.1  remote IP address: 0.0.0.0




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