From: mdye@bevillcntr.org
Date: Tue Apr 22 2003 - 01:17:16 GMT-3
Work well on 1600, 1700, & 2600(With 2T Low speed interface card)
When you do "..-if)#phyical-layer async", it assigns the interface to a
line number. In the example below, line 2. You can find out what interface
by using the "show line" command.
"
Router#show line
Tty Typ Tx/Rx A Modem Roty AccO AccI Uses Noise Overruns Int
* 0 CTY - - - - - 0 12 2/0 -
2 TTY 9600/9600 - - - - - 0 0 0/0
Se0/1
65 AUX 9600/9600 - - - - - 0 0 0/0
- "
----------------
You then configure the physical parameters on the line and the logical
config on the interface.
Sample config (legacy DDR):
....
interface Serial0/1
physical-layer async
ip address 10.1.1.2 255.255.255.0
no ip directed-broadcast
encapsulation ppp
keepalive 10
dialer in-band
dialer idle-timeout 300
dialer wait-for-carrier-time 90
dialer map ip 10.1.1.1 name Gadsden modem-script hayes56k broadcast 5551212
dialer hold-queue 50
dialer-group 1
async mode dedicated
no cdp enable
....
line 2
password cisco
login
modem InOut
transport input all
stopbits 1
speed 115200
flowcontrol hardware
....
I hope that helps.
Mark Dye
10:03 PM 4/21/03 -0400, Jonathan V Hays wrote:
>> -----Original Message-----
>> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
>> Behalf Of Dennis Dumont
>> Sent: Monday, April 21, 2003 8:56 PM
>> To: Jonathan V Hays
>> Cc: Groupstudy CCIELab
>> Subject: RE: connect a modem on serial port
>>
>>
>> > > -----Original Message-----
>> > > May I connect a 1-T or 2-T WIC card to a modem
>> > for
>> > > dial-up communication?
>> No.
>>
>> > "physical-layer async"
>> This is only available in the Async/Sync ports, and
>> those ports top at at 115200 async and 128000 sync.
>>
>> The WIC-1T, WIC-2T, NM-4T, and the two fixed serial
>> ports on all the 2500's (except for the extra ports in
>> the 2520, 2521, 2522, and 2523 which are clearly
>> marked "Low Speed Async/Sync) and the 3810 are High
>> Speed, Sync only.
>
>http://www.cisco.com/en/US/products/hw/modules/ps3129/products_tech_note
>09186a00800b0859.shtml#cfg
>
>You may be correct as I have not tried connecting a modem to a
>synchronous serial port myself. However, the above recent document
>(dated Feb 21, 2003) clearly states that it is possible:
>
>"For more information on configuring the WIC-1T card, refer to . If your
>platforms suports async then use the command physical-layer async for
>async mode. Such an application is useful to connect an external modem
>to the router."
>
>It is certainly possible that the author of this document made an
>incorrect assertion. But since the synchronous serial port is largely
>software controlled it seems reasonable that you could force it into
>async mode.
>
>Does anyone have any hands-on experience with this?
>
>-Jonathan
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