• Packet Sniffer

    I need to know about packet sniffer with a clear demo and how the packets are transmitted in TCP and UDP.

    ITKE345,065 pointsBadges:
  • Wake on LAN / Magic Packet broadcast doesnt work through PPTP

    Hi, I have a network, where I want to use WOL from a remote PC. It works when I send a packet from inside the network (or on the server). If I connect via PPTP from a remote Windows XP PC, I can't wake up the PC on the LAN. I suspect the broadcast packet doesn't reach the LAN. The PPTP connection...

    Benbje0 pointsBadges:
  • Transfer a file by a batch job

    Hi, I want to transfer a file by a batch-job (which is running on the mainframe) from a mainframe to a windows system. The file should be transferred in binary mode. The problem is that I need the CR/LF at the end of the records in the file after I transferred the file to the windows system. Do you...

    Clitze0 pointsBadges:
  • Save log view in Event Viewer

    Howdy folks, If I create a new log view in event viewer and filter the results, is there any way to save this view? Every time I close event viewer I have to re-create it. Probably just MS by design.... Is there any way to script it?

    TheVyrys0 pointsBadges:
  • LAN connectivity problem with Compaq notebook

    I have a Compaq EVO n1020v notebook. This works fine in our office LAN and sometimes it does not at all. Office LAN is a workgroup with ICS enabled in win 2K server. If I check the IP of the notebook it shows the IP of the LAN but never connects to the internet, can't access LAN...

    BinooDas123410 pointsBadges:
  • Mac address to IP address resolution

    How can we resolve IP address from Mac address and can we do this from Cisco switch 3750? We are able to track port no and associated Mac address from Cisco switch by using the command #sh mac-address-table dyanamic>, but we also want to track the associated IP address with port no. Please...

    Ruchitgarhwal0 pointsBadges:
  • Steps to connect Printer in LAN

    I have HP Laserjet 1000 series printer. Please explain to me the steps to connect this printer in LAN with 4 computers. The computers are not in LAN. I want to create a new LAN with 4 computers & the printer mentioned above. All four computers have Windows 98 as Operating System.

    Swatiaggrawal0 pointsBadges:
  • iSeries NFS: Change from UDP to TCP

    We are running on V5R4 and attempting to mount (via NFS) an external file system (Data Domain 530) onto the iSeries. Even though on the surface it appears that the mount was successful; you cannot execute any type of read or write operation to the mount. After running a communications trace, it was...

    Iseries4215 pointsBadges:
  • Some email stuck in Exchange 2003 queue

    Hi All, We have a single Exchange 2003 Enterprise server with about 150 users.  Lately - over the last month some emails have begun to languish in the queue until delivery failure.  Other emails from the same senders to the same recipients go through, and internal emails are sent as well. During...

    TimMarks55 pointsBadges:
  • Restrict traffic for Cisco VPN clients

    Hi all, First some background for my question: I have recently set up a VPN tunnel between a Cisco PIX 506E (VPN server) and remote clients. The remote clients use Cisco VPN Client software version 4.8. Everything seems to work fine. But as it is configured right now the remote clients have full...

    Daniel40 pointsBadges:
  • TCP/IP MTU and MSS

    In my LAN, the MTU is 1500, and hosts A and b have an MSS of 1460. By testing and analysing with Fireshark I sent a 4000-byte long TCP segment from host A to host B in my LAN, but the segment came in full (the 4k bytes came in one piece). Shouldn't the 4k byte segments be broken into 1460-byte...

    BUCHANKAS30 pointsBadges:
  • Limit Port 80 Time_Wait from my computer to router

    How can I limit the number of requests my computer makes to my router to port 80. At idle, when looking at the connection page of my router I see a hundred or so port 80 Time_Wait from my computer address (say 192.168.1.145) to my routers address (say 192.168.1.1).This has just started probably...

    Caji5 pointsBadges:
  • How to send packets in peer-to-peer networking

    hello.. i'm still new in IT field.. i want to ask some question about networking.. how do i want to send tcp and udp packet in peer to peer network environment which is without any server in my topology. i don't know what software should i use. after send both packet, i have to capture the packets.

    Skh35 pointsBadges:
  • Encrypt TCP messages

    What is the best way to encrypt proprietary (non-XML) messages over a TCP socket from the iSeries? I am currently using IBM's QZRDSSRV API's to do the sends and receives and create the socket connections, but those API's don't support encryption.

    baumgardnd50 pointsBadges:
  • Checking TCP Servers

    I need to code a program that will confirm that certain TCP Servers such as TFTP are NOT started per PCI requirements as they are insecure

    JerryBushika5 pointsBadges:
  • High latency, TCP window size, single or multi session

    Dear Gurus : the situation is between 2 place with high latency e.g. 60ms from China to Taiwan. the IPLC link is 20mbps , the test PC hase been tcp optimisation increase window size FYI  http://www.speedguide.net/downloads.php if one ftp test session still can not reach for example 10%(vs 100Mbps...

    JJLee5 pointsBadges:
  • FTP Problem using Zmod

    I have a problem running Zmod GETDBFFTP to retrieve files from a Unix box. Intermittently a character is being dropped from files retrieved. There seems to be no consistency to this. A file/data that has this discrepancy can be retrieved half a dozen times without problem. It is not particular to a...

    Helga520 pointsBadges:
  • Network Connection Freezes

    For some reason, at random, among 20 PCs on my network, in the morning or during the day, the network connection stops responding for both intranet and internet communications. The only solution thus far is to remove the NIC from the Device Manager, reboot the PC, and let Windows XP Pro find the...

    DboiSOBE0 pointsBadges:
  • Layer 2 Ethernet throughput

    We have 2 sites. Point A and point B. Point A has a 100M ethernet line on a 100M port and point B has a logically 20M line seating on a 100M port. Telco providers use traffic shaping to logically set the bandwidth on their L2 device at their nearest office from point B. We have multiple circuits...

    Lynjay5 pointsBadges:
  • What protocol is more suitable for chatting program

    Which protocol is more suitable for writing a chatting program, either TCP or UDP?

    Rajeshu135 pointsBadges:

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