| Title: | PATHWORKS V5 for DOS and Windows |
| Notice: | OS2LAN::OS2:[PUBLIC] is alive again, but not what it used to be |
| Moderator: | RANGER::CURLESS |
| Created: | Fri Feb 11 1994 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 7404 |
| Total number of notes: | 27276 |
Quick Question: Is there anything that has to be configured for PW
tcp/ip to accept multicast addresses? PWTCP.INI? maybe even
protocol.ini?
My customer is installing a RealAudio Server on NT and has several NT
and Pathworks v5.1 clients on the same subnet/wire. The server sends
data out over tcp/ip sockets, UDP ports and via Multicast address - he
sets this up as a class D address.
The Audio data is accepted at the NT machines in all 3 cases. On the PW
clients, the tcp/ip sockets are fine, UDP is flaky but usually works,
but the multicast address fails - PW Clients never get data sent on the
multicast address.
In researching this, it seems that the class D addresses
224.0.0.0 - 239.255.255.255 are multicast ip addresses and it appears
that the client must either have some extension to recognize these
addresses or have a way to recognize the multicast address being used.
Obviously in this case, NT does it. Does Pathworks' TCP/IP support
this? If so, what do we have to do to get it to work?
Thanks in advance,
Gary
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 7361.1 | JAMIN::WASSER | John A. Wasser | Thu Mar 13 1997 09:10 | 13 | |
One way to check to see if a particular TCP/IP implementation supports the multicast extensions is to get a sniffer trace of the system starting up. If it sends a datagram to the IP address 224.0.0.1 then it supports multicast. See: http://www.sockets.com/ch16.htm "When a TCP/IP host starts, it sends a host membership report to the all-hosts group (224.0.0.1) from each network interfaces to notify the multicast routers. Every host remains a member of the all-hosts group for as long as the host is active." | |||||
| 7361.2 | Does Pathworks TCPIP support multicasts? | ALFSS2::OLSEN_G | Hey y'all, how y'all doin'? | Thu Mar 13 1997 11:33 | 8 |
John,
I'll try the trace, but can you tell me if the Pathworks v5.1 TCP/IP
supports multicasts?
Thanks,
Gary
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| 7361.3 | JAMIN::WASSER | John A. Wasser | Thu Mar 13 1997 15:53 | 4 | |
> I'll try the trace, but can you tell me if the Pathworks v5.1 TCP/IP > supports multicasts? If I knew I would have told you. I suspect not. | |||||
| 7361.4 | ALFSS2::OLSEN_G | Hey y'all, how y'all doin'? | Thu Mar 13 1997 17:17 | 5 | |
Ok - I'll run the trace and see.
Thanks,
Gary
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