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Frequently Asked Questions

How does IP-Multicast work?

Vypress Messenger FAQ (Frequently Asked Questions)
IP-Multicast works by enabling network systems to join a multicast group that is identified by a multicast address. Multicast addresses are in the range of 224.0.0.0 to 239.255.255.255. Vypress Messenger and Vypress Auvis can join to an unlimited number of multicast groups. For example, when a desktop user joins the address, 225.100.100.100, all of the messages sent to that address from any other system will be received.

How do IP multicast tunnels work?

The MBONE FAQ
IP multicast packets are encapsulated for transmission through tunnels, so that they look like normal unicast datagrams to intervening routers and subnets. A multicast router that wants to send a multicast packet across a tunnel will prepend another IP header, set the destination address in the new header to be the unicast address of the multicast router at the other end of the tunnel, and set the IP protocol field in the new header to be 4 (which means the next protocol is IP). See similar questions...

Can the Multicast IP address used by eCopy ShareScan OP be changed?

Support: Frequently Asked Questions
In eCopy ShareScan OP version 1.0, the Multicast IP information is hard-coded and cannot be changed. In eCopy ShareScan OP 1.1, there are alternative methods to discover MEAP-enabled devices. See the FAQ for discovering MEAP-enabled devices. See similar questions...

How Do I Make IP Multicast Work With My Firewall?

Internet Firewalls: Frequently Asked Questions
IP multicast is a means of getting IP traffic from one host to a set of hosts without using broadcasting; that is, instead of every host getting the traffic, only those that want it will get it, without each having to maintain a separate connection to the server. IP unicast is where one host talks to another, multicast is where one host talks to a set of hosts, and broadcast is where one host talks to all hosts. See similar questions...

Why don't you use IP Multicast?

Frequently Asked Question (FAQ)
IP Multicast is an extension of the Internet Protocol, the protocol that make the Internet work. It supports multicast at a low-level protocol and is, in theory, more efficient than End-host Multicast. However, IP Multicast is not widely available. In fact, the original version of Jungle Monkey used IP Multicast, but we abondoned it because we couldn't find any users who had it. See similar questions...

Where can I get the IP multicast software and mrouted program?

The MBONE FAQ
The IP multicast software is available by anonymous FTP from the vmtp-ip directory on host gregorio.stanford.edu. Here's a snapshot of the files: ipmulti-pmax31c.tar ipmulti-sunos41x.tar.Z Binaries & patches for SunOS 4.1.1,2,3 ipmulticast-ultrix4.1.patch ipmulticast-ultrix4.2a-binary.tar ipmulticast-ultrix4.2a.patch ipmulticast.README [** Warning: out of date **] ipmulticast.tar.Z Sources for BSD You don't need kernel sources to add multicast support. See similar questions...

How does IP work over satellite?

VSAT Services FAQ's,, VSAT SATELLITE : Data and Internet Ser...
Technically speaking, Internet traffic transmitted over satellite works no differently than transmitting it over terrestrial lines. The best way to think about it is to view satellites as a digital highway in the sky. See similar questions...

What IP-PBXs does it work with?

FAQ IP
The videophones work with any IP-PBX that supports H.323. In many cases a gatekeeper is required to interface with the IP-PBX system. Please contact your SCOTTY representative if you would like information on interfacing to IP-PBX systems. All IP videophones have been tested and work with wireless bridges from various manufacturers. The wireless bridge connects to the Ethernet port of the videophone. See similar questions...

How does the IP KVM work?

CoreNetworks.net :: Frequently Asked Questions
IP KVM is provided for free on an as-requested basis for a 24 hour period. It can normally stay connected longer if other users are not waiting in the queue for access. Simply open a support ticket, and the next available IP KVM port will be connected to your system, and detailed instructions on how to access it will be provided to you. If you would like a private IP KVM port always connected to your systems, we do have this option at an additional cost. See similar questions...

What does it mean to multicast basketball games?

Multicasting And High Definition FAQ's - March Mania News St...
Through our digital technology we are able to broadcast up to four games simultaneously on four different channels. This will allow you to select the game of your choice or move from game to game at your discretion. See similar questions...

What is Multicast?

Multicast technical trial: FAQ
Multicast is an alternative way of delivering video and radio channels at a much higher quality. It's a smarter way of serving large numbers of people. This means more live channels will be available for popular events like the Olympics. See similar questions...

Voice over IP FAQ - Understanding VoIP How does VoIP work?

Voice over IP FAQ - Frequently asked questions about voice o...
VoIP uses your existing high-speed internet connection to allow you to make and receive phone calls to any phone in the world. After registering for service, you will be sent a small device called an Analog Terminal Adapter (ATA, Phone Adapter, or Gizmo) that plugs into your home network. You will then plug a regular corded or cordless telephone into the ATA adapter. All VoIP calls are carried over the Internet until each call needs to be directed to a regular phone line. See similar questions...

How does ISN IP PBX work?

ISN IpPBX Download & Learning Center
ISN IP PBX is based on voice-over Internet protocol (VoIP), a method by which voice is digitized and transmitted in digital packets rather than using traditional circuit-committed protocols of the public switched telephone network (PSTN). See similar questions...

How does the IP codec functionality work?

AudioTX Communicator: Product pre-sales info ---------- Soft...
Our IP functionality is absolutely unique. Whilst other manufacturers claim to offer IP codec functionality, most if not all are still using streaming media technologies (like those used for web radio). Whilst streaming media technologies are fine for what they are most commonly used - streaming lower quality audio direct to consumers - they do not work well in professional applications. See similar questions...

What kind of IP Network Camera will work with your software?

Willing Webcam FAQ - Frequently Asked Questions
The program works with IP cameras that have the jpeg output. If you have such a cam, you should find the jpeg file name the html code for viewing the cam (you can get it while viewing the picture from the cam in your browser), for example: image.jpg See similar questions...

I guess the only thing it lacks is multicast?

iSchool Technology Knowledge Base - How to Create a Ghost 8....
Right after the mouse driver loads I get an error that says it can not write to GHOSTERR.TXT which is understandable since it is a CD. That error just keeps rapidly scrolling on the screen. See similar questions...

Why doesn't using the Naming Service with Multicast work?

Support - Frequently Asked Questions - The ACE ORB
least on some versions of Windows, there's a bug in which the TTL (Time-to-Live) field in multicast IP packets is set to zero. Thus, nobody pays attention to those packets. This particular problem bit OCI in their training lab environment, and for this reason we now use the Naming Service without multicasting as documented in the TAO Developer's Guide (see How do I locate the Naming Service without resorting to multicast discovery?). The problem is documented in http://support.microsoft. See similar questions...

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