C
HAPTER
3
T
ESTING
F
REQUENTLY
A
SKED
Q
UESTIONS
(FAQ)
30
Multi
Com
LAN Access Center
— User’s Manual
F
REQUENTLY
A
SKED
Q
UESTIONS
(FAQ)
3.1
Please also consult the Technical Support area of the Lightning web site at:
http://www.lightning.ch/support/
for an up-to-date list of the FAQ.
1.
The IP address of the
Multi
Com
is
10.0.0.1
by default.
2.
Can I connect my
Multi
Com
router to a Fast Ethernet network?
Your
Multi
Com
router is built for 10 Mbps Ethernet, thus it will not work if
connected to a 100 Mbps-only Ethernet port. Most Ethernet ports can do both
10 and 100 Mbps Ethernet. Your router will work if connected to such a port,
but only when using a 4-wires cable like the grey Ethernet cable delivered
with your router.
3. Which Stac compression do you support?
We support the standard Stac LZS
®
compression (RFC1974). We do not sup-
port the obsolete draft-09 version of Stac (sometimes called Stac-9) neither
Microsoft PPC (also know as MPPC or MS-Stac).
4. The ISDN line keeps up or opens periodically even if I don't
access the Internet
There can be multiple causes for such a behaviour. First of all, make sure that
you have chosen a small timeout value for closing the line. The default value
is 90 seconds. If the line stays open longer than that, you may have an internal
problem (e.g. a misconfigured machine on your local network) or an external
problem (a misconfigured router talking to your
Multi
Com
). To find out where
the problem comes from, disconnect the Ethernet cable from the router and
check if the line still keeps up. If the line goes down after a few minutes, then
the problem is internal, if not then it is external. Use the command:
Info
Site Internet Frames
to check which IP packets are opening the line, and
Info Site Internet Frame
n
to display the most frequent one.
Common internal problems are:
• A mail program (e.g. Netscape, Eudora, MS Exchange) that is configured to
check mail every few minutes.
• A Web browser that has a starting page with an address that is outside your
network. Use a blank page or a local file as start page instead, e.g.
file:/
mystartpage.html
. Do not use an URL like
http://localhost/mystart-
page.html
, as your computer will have to contact an external DNS server to
resolve the name “localhost”!
