Recent content by dcss00

I did a quick read through and did not see mention of TCP port numbers, the same IP source/destination addresses are good but it is also about the TCP port numbers. Do the packets have the same TCP port numbers on both sides? If so then something in the middle is possibly changing or creating...

I apologize if this is not the correct forum, I have not found a better one so far. I am viewing the web page - /localhost/serverweb/Server/Serversetup.asp?action=view&srvid=2 I see a pull down list of 10 servers, if I select the 2nd server the page URL changes to the above and I see the...

Thanks I will read about the Google infrastructure, I read the original post as a question of how can Google handle more that 65535 connections at a time since there are only 65535 ports. My point was that the google servers use TCP port 80 and millions of clients use dynamic ports. So it is...

So Google has thousands of servers all listening on TCP port 80 for a incoming connection request. Each server can support hundreds/thousands (not a server person so don't know a real numer here) of seperate connections on tcp port 80. dcss00

Also if I understand correctly (if not please help me understand) it is not really about the limit of 65535 ports. Since Google in this case is the "server" it listens on tcp port 80 for a incoming connection from a client using a client tcp port number range,so this along with the source and...

When you read about TCP sequence numbers they usually describe it referenced to the packet and counting number of packets sent and if one is lost it is retransmitted. As we know the sequence number is a count of the payload octets for the frame, the sequence number counts octets. I am still...

I don't think Sniffer is back under "Network General Control" NGC is gone. Maybe the new company will be called Network General, but this is just a name. Once a well respected name, the new people will determine if the name will regain respect. Besides that if NGC was so great they would not...

Also what is the window size frozen at? If near the initial window size advertised in the TCP setup then that could indicate one thing. Or if the window size is frozen near zero or well below the original advertised size this could be caused by other things. Overall you are being told that...

DTE and DCE, the DCE (CSU/DSU) usually always provides the clock. But if you have to connect routers in a back to back lab setup one side needs to be a DCE so using the clockrate command will turn the serial port into a DCE and provide a clock.

I am also recertifying the CCNP in 4 months. I have looked into study materials and saw the CCNP Certification Library for 100 bucks. Has all four of the updated books for the new exam. Since I have not really used much of my CCNP I need this to be a good refresher also. Has anyone used...

I am looking to get my first wireless device and have a few questions. I thought I wanted the WRT54G Broadband Router, but this is only for wireless access to my test network (25xx routers, 19xx switches, servers etc.) and there is no DSL/modem . Can I still get full wireless functionality...

I am trying to setup e-mail sever in my lab but .NET Ent. Server will not relay the e-mails. I have no Internet connection and no domains setup that I am aware of. The server will see the e-mails from my WIN 2000 PC but it will not send them back or if I send, an e-mail from the server to the...

A few years ago someone showed me what seemed to be a little known feature in WIN NT. This feature would allow someone to create a text file (I think) using a print option, (I think) to print out everything and anything that had been done to the software since installation. I think it was a...

First, I would like to suggest monitoring your LAN if you do not suspect the WAN as the actual cause of the problem. The LAN is the source of traffic/BW on your T1. Monitor the LAN router ports, see what protocols, hosts are sending/receiving traffic across the WAN. Determine what is...