(PM) "3Com Impact IQ" and "default route to learned IP address?"

John Kelly (jak@cetlink.net)
Fri, 07 Nov 1997 15:09:04 -0500

Tim Flavin <tim@i1.net> wrote:

>> A PC running FreeBSD with PPPD will easily configure a default route
>> to the far end IP address learned when the PPP link is brought up.
>
>You also loose the benifits of STAC

Not true. Some TA's support STAC interoperability with a PM3.
The 3Com Impact IQ claims to be one which does.

>and are limited to the speed of an async port this way.

Irrelevant. The 3Com Impact IQ supports 230k DTE speed. So if
your async serial adapter has a 650 UART with a 3.6864 MHz (or
higher) clock capable of 230k (or higher), you can saturate the
full 128k bandwidth of the DCE pipe. I have tested this and
it works well. Throw in STAC compression and the throughput
may go up to around 200k or better for uncompressed data.

As a followup to my earlier message about the 3Com Impact IQ, they
finally returned my tech support call after I threatened to return
the unit. They asked me to connect to one of their test Portmasters
running COM/OS 3.5.1b7, via a long distance number.

On the long distance call, it connected perfectly 10 times in a row,
64k on each channel of a bonded Multilink PPP call. So it appears
there is some yet unresolved issue while calling my local ISP. They
use a CLEC telco, ICG Telecom, who is interconnected with Bellsouth,
my telco, in Charlotte.

It's already hard to get much help from Bellsouth on this problem,
but when they hear that the call terminates in a CLEC network, their
eyes just roll back in their heads.

>You may want to look at the Netopia for your needs.

Sounds like sales talk to me. FreeBSD is apparently more
TCP/IP capable than some of the standalone routers on the
market.

John

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