BSTUN Configuration for ASYNC ( classic data)

[nguyentienthanh]

Dear Team,

We setuped a model as attached file as:

PC1 ( Hyperterminal), ASYNC ==> RS232 ==> (Serial 0/1/0/ Router 1) ==> IP ( Router 2, Serial0/1/0) ==> PC2( Hyperterminal), ASYNC.

Detail configuration in attached too. After configured i show interface S0/1/0 at two routers and see them up but no data can send from PC to Router. and i show bstun and see closed state. Even i debug asp packet & event and debug bstun packet & event but nothing happen.

PLease help us on this case. Thank you team !

ThanhNT

[acampbell]

Hi,

The config on the routers looks correct.

Your async ports on the routers are running the default 9600bps.
Are your PC set to 9600
Is your cabling correct- Your routers are DTEs by default and
PCs are also DTE by default so you need cross-over cables.

Regards
Alex

[nguyentienthanh]

Dear acampbell,

Our PC set to 9600 default.

Our Router use the 1st cable as

CAB-SS-232MT

RS-232 Cable, DTE Male to Smart Serial, 10 Feet

Then connect to (Com RS232) 2nd cable to PC

So any advise on this case. Please help me. Thank you !

Regards,

ThanhNT

[nguyentienthanh]

Dear acampbell,

Please find attached the picture of cables connect from Router to PC. Please help me and give me advise for this.

Regards,

ThanhNT

[acampbell · Accepted solution]

Hi,

Your Cisco cable from the router looks to me as if it presents a 25 way female.
In my book that make te cable an FC not an MT therefore it is a DCE cable.
A DCE cable is for connecting directly to a DTE (like a PC or printer etc)

The problem then is that the the thinner 9way to 9way looks like a null
modem (crossover DTE to DTE) - the full set up then will NOT work.

The thin cable will need to be "straight". IE pin 1 to pin 1, pin 2 to pin 2 etc etc.

May be you can confirm what the physical pin-outs really are.

Hope this helps
Regards
Alex

[nguyentienthanh]

Dear acampbell,

Cable from the router is DTE Male to Smart Serial (cable 1) as below:

Connector 1: Smart Serial 26-PIN Male
Connector 2: DB25 RS232 DTE Male

You can see detail in attached file. Please review again ! Thank you !so much

Regards,

ThanhNT