Database Search
TechHome
 | |
| |
| |
| |
| |
| |
| |
| |
| |
|
- !!NEWS FLASH!!
- Background Information on Sockets
- Base64 Encoding
- Changing the Timeout with wxParmSet
- Citrix Monitor
- Connect to a NNTP server
- Encoding URLs
- How Does Winsock Extender Use Ports
- How to Get GM Time from Time Servers
- How to Receive a Line with a Ctrl-C in it
- Internet Extender and Showing Web Pages
- Invalid Page Fault with Compiled EXE
- Non-DNS served IP addresses and Winsock
- NSLookup Functionality
- Pop3 Functions and File Attachments
- ScanTCP and UCP Ports for Virus or Worm
- Socket Connector and Listener Script
- SSH and WinBatch
- TCP-IP Port Definitions
- UrlEncode or iContentUrl cannot handle hebrew characters
- Using Dotted IP Addresses
- WebSite Windows CGI 1.3a Interface
- What is the PDH.DLL File Used For
- WinSock Buffer Problem
- Winsock Error 10110 and Specifying Host Name
- Winsock Extender and ASP
- Winsock Extender Virus Issue
Can't find the information you are looking for here? Then leave a message over on our WinBatch Tech Support Forum.
How Does Winsock Extender Use Ports??
Keywords: ports freezing
Question:
I've noticed with the wxgetinfo command that the port changes after each connection ( I display the last connection IP and port).I found that when I set SLISTEN to a particular port#, and the connect script uses SCONNECT to the same port# it also changes each time (???) usually by increments of +2 (ie start at 1490, and next time it shows port 1492, 94, 96 etc). It also may not even use the port I select, instead starting somewhere else and incrementing from there.
Is that why it freezes, eventually running out of ports? Or is it taking the next available port?
Is there a way to specify and use just one port?
Answer:
Nope.. That's how it works.The port you connect to - or listen on - is like the "receptionist" port. When you connect to the sListen port, the receptionist does the real connect on a different set of ports and goes back looking for more connects.
If you don't do the SClose, then you can run out of ports. It should be able to re-use closed ports.
OR...
Once you get a connection, leave the connection open for pretty much forever.
Article ID: W12607
Filename: How Does Winsock Extender Use Ports.txt
File Created: 1999:04:15:16:48:22
Last Updated: 1999:04:15:16:48:22