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Page 91 / 100 Scroll up to view Page 86 - 90
91
Frequently Asked Questions (continued)
How do I use NetMeeting with my D-Link router?
Unlike most TCP/IP applications, NetMeeting uses
DYNAMIC PORTS
instead of
STATIC PORTS. That means that each NetMeeting connection is somewhat different
than the last. For instance, the HTTP web site application uses port 80. NetMeeting
can use any of over 60,000 different ports.
All broadband routers using (only) standard NAT and all internet sharing programs like
Microsoft ICS that use (only) standard NAT will NOT work with NetMeeting or other
h.323 software packages.
The solution is to put the router in DMZ.
Note:
A few hardware manufacturers have taken it on themselves to actually provide
H.323 compatibility. This is not an easy task since the router must search each
incoming packet for signs that it might be a netmeeting packet. This is a whole lot
more work than a router normally does and may actually be a
weak point in the
firewall
. D-Link is not one of the manufacturers.
To read more on this visit
http://www
.HomenetHelp.com
How do I set up my router to use iChat?
-for Macintosh users-
You must open ports on your router to allow incoming traffic while using iChat.
iChat uses the following ports: 5060 (UDP) 5190 (TCP) File Sharing 16384-16403
(UDP) To video conference with other clients
Step 1
Open your web browser and enter the IP Address of your router
(192.168.0.1). Enter username (admin) and your password (leave blank).
Step 2
Click on
Advanced
and then click
Firewall
.
Page 92 / 100
92
Frequently Asked Questions (continued)
Step 3
Create a new
firewall rule:
Step 4
Click
Apply
and then
Continue
.
Step 5
Repeat steps 3 and 4
enter
ichat2
and open
ports
16384-16403
(UDP).
Click
Enabled
.
Enter a name
(ichat1).
Click
Allow
.
Next to Source,
select
WAN
under
interface.
In the first box,
enter an
*
.
Leave the second
box empty.
Next to Destination,
select
LAN
under
interface.
Enter the IP
Address of the
computer you are
running iChat from.
How do I set up my router to use iChat? -for Macintosh users-
(continued)
Leave the second box empty. Under
Protocol, select
UDP
. In the port range boxes,
enter
5060
in the first
box and leave the
second box empty.
Click
Always
or set a
schedule.
.
ichat1
.
WAN
LAN
192.168.0.100
UDP
5060
.
.
ichat2
.
WAN
LAN
192.168.0.100
UDP
16384
.
16403
Page 93 / 100
93
Frequently Asked Questions (continued)
If using Mac OS X Firewall, you may need to temporarily turn off the firewall in
the Sharing preference pane on both computers.
To use the Mac OS X Firewall, you must open the same ports as in the router:
Step 1
Choose
Apple menu
>
System Preferences
.
Step 2
Choose
View
>
Sharing
.
Step 3
Click the
Firewall
tab.
Step 4
Click
New
.
Step 5
Choose
Other
from the Port Name pop-up menu.
Step 6
In the Port Number, Range or Series field, type in:
5060
,
16384-16403
.
Step 7
In the Description field type in:
iChat AV
Step 8
Click
OK
.
For File Sharing:
Step 1
Click on
Advanced
and
then
Virtual Server
.
Step 2
Check
Enabled
to
activate entry.
Step 3
Enter a name for your
virtual server entry (ichat3).
Step 4
Next to Private IP, enter
the IP Address of the computer
on your local network that you
want to allow the incoming
service to.
Step 5
Select
TCP
for Protocol
Type.
Step 6
Enter
5190
next to
Private Port and Public Port.
Step 7
Click
Always
or
configure a schedule.
Step 8
Click
Apply
and then
Continue
.
How do I set up my router to use iChat? -for Macintosh users-
(continued)
ichat3
5190
5190
192.168.0.100
Page 94 / 100
94
Frequently Asked Questions (continued)
How do I send or receive a file via iChat when the Mac OSX firewall
is active? -for Macintosh users- Mac OS X 10.2 and later
“iChat cannot send or receive a file when the Mac OS X firewall is active in its default
state. If you have opened the AIM port, you may be able to receive a file but not send
them.
In its default state, the Mac OS X firewall blocks file transfers using iChat or America
Online AIM software. If either the sender or receiver has turned on the Mac OS X firewall,
the transfer may be blocked.
The simplest workaround is to temporarily turn off the firewall in the Sharing preference
pane on both computers. This is required for the sender. However, the receiver may keep
the firewall on if the AIM port is open. To open the AIM port:
If you do not want to turn off the firewall at the sending computer, a different file sharing
service may be used instead of iChat. The types of file sharing available in Mac OS X are
outlined in technical document 106461, "Mac OS X: File Sharing" in the
AppleCare Knowl-
edge base
online.
Note: If you use a file sharing service when the firewall is turned on, be sure to click the
Firewall tab and select the service you have chosen in the "Allow" list. If you do not do
this, the firewall will also block the file sharing service. “
The following information is from the online Macintosh AppleCare knowledge base:
Step 1
Choose Apple menu > System Preferences.
Step 2
Choose View > Sharing.
Step 3
Click the Firewall tab.
Step 4
Click New.
Step 5
Choose AOL IM from the Port Name pop-up menu. The number 5190
should already be filled in for you.
Step 6
Click OK.
Page 95 / 100
95
What is NAT?
NAT stands for
Network Address Translator
. It is proposed and described in RFC-
1631 and is used for solving the IP Address depletion problem. Each NAT box has a
table consisting of pairs of local IP Addresses and globally unique addresses, by
which the box can “translate” the local IP Addresses to global address and vice versa.
Simply put, it is a method of connecting multiple computers to the Internet (or any
other IP network) using one IP Address.
D-Link´s broadband routers support NAT. With proper configuration, multiple users can
access the Internet using a single account via the NAT device.
For more information on RFC-1631: The IP Network Address Translator (NAT), visit
http://www
.faqs.org/rfcs/rfc1631.html
Frequently Asked Questions (continued)

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