On Wed, 15 Dec 1999, Paul Parsons wrote:
|I get a PPP client connection up, but it's very very slow.
|Using ping I diagnose that I'm losing every other packet.
[snip]
|I've got an external ISDN 115200 modem that works perfectly under
|Windoze.
|I'm using Redhat Linux 6.1
[snip]
|I've included the pppd log below.
[snip]
|Dec 15 12:59:39 piglet chat[736]: send (ATDT91XXXXXXX^M)
|Dec 15 12:59:39 piglet chat[736]: timeout set to 600 seconds
|Dec 15 12:59:39 piglet chat[736]: expect (CONNECT)
|Dec 15 12:59:39 piglet chat[736]: ^M
|Dec 15 12:59:39 piglet chat[736]:
|Dec 15 12:59:40 piglet chat[736]: ^M
|Dec 15 12:59:40 piglet chat[736]: CONNECT
|Dec 15 12:59:40 piglet chat[736]: -- got it
I really don't know much about how you go about connecting to an
ISDN line. But if you dial a phone number in much the same manner
as an ordinary Telco line connection to an ISP, then there's something
strange about the chat log messages. You just can't dial and connect
in 2 seconds. If, perchance, the log time-stamps are munged then
you should be aware that they are an important part of the log for
diagnostic purposes.
Even so, mostly from the huge 600 second timeout that is set for
chat just after the phone number is sent, I'd *guess* that the IRQ
configured for the modem's device file is wrong. Doing "setserial
/dev/ttyS0" will show the configured IRQ, and it must agree with the
IRQ that the serial port actually uses. And no other device can use
that IRQ, check for another device using it with "cat /proc/interrupts"
at a time when the modem is not being used.
---
Clifford Kite Not a guru. (tm)
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