TCP FIN and Close age out
I have a DHCP DNS Wins Certificate server Kasper antivirus exchnage and oracle 10g configured in my Lan, i have configured 802.1x machine authentication and vlan assignment via IC 4000 and security policies are applied via ISG 2000 juniper Firewall. we have seen a lot of TCP FIn Tcp port no 1116 and close age [...]
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| January 21, 2009 9:08 AM
DNS, Network connectivity, TCP, TCP FIN
I have a DHCP DNS Wins Certificate server Kasper antivirus exchnage and oracle 10g configured in my Lan, i have configured 802.1x machine authentication and vlan assignment via IC 4000 and security policies are applied via ISG 2000 juniper Firewall. we have seen a lot of TCP FIn Tcp port no 1116 and close age [...]
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| January 21, 2009 9:08 AM
DNS, Network connectivity, TCP, TCP FIN
Full description of all the TCP/IP servers
Hi folks, does anyone know where I can find a full description of what each of the TCP servers does? We recently had a problem and I was unable to find out which servers should/shouldn’t be running. Many thanks
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| January 13, 2009 2:45 PM
IP servers, TCP, TCP/IP
Hi folks, does anyone know where I can find a full description of what each of the TCP servers does? We recently had a problem and I was unable to find out which servers should/shouldn’t be running. Many thanks
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| January 13, 2009 2:45 PM
IP servers, TCP, TCP/IP
Configure ports
how do u configure uer network to forward tcp and udp ports 6346 to ur local network
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| November 17, 2008 10:33 PM
Port configuration, Port forwarding, TCP, TCP port, UDP, UDP port, Windows Vista
how do u configure uer network to forward tcp and udp ports 6346 to ur local network
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| November 17, 2008 10:33 PM
Port configuration, Port forwarding, TCP, TCP port, UDP, UDP port, Windows Vista
Lacking a FQDN during database mirroring on SQL Server 2005
I am trying to work with database mirroring on SQL Server 2005, and I keep receiving the error message, “One or more of the server network addresses lacks a fully qualified domain name (FQDN). Specify the FQDN for each server, and click Start Mirroring again.” I know that the syntax for a fully-qualified TCP address [...]
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| September 2, 2008 6:59 PM
Database mirroring, FQDN, SQL Server 2005, SQL Server errors, TCP
I am trying to work with database mirroring on SQL Server 2005, and I keep receiving the error message, “One or more of the server network addresses lacks a fully qualified domain name (FQDN). Specify the FQDN for each server, and click Start Mirroring again.” I know that the syntax for a fully-qualified TCP address [...]
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| September 2, 2008 6:59 PM
Database mirroring, FQDN, SQL Server 2005, SQL Server errors, TCP
Switching the TCP/IP-OSI Architecture to a pure OSI Architecture
What costs would be incurred to switch the Hybrid TCP/IP-OSI Architecture a pure OSI architecture? Could it be done?
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| September 26, 2008 2:44 AM
Network design, networking standards, OSI Architecture, TCP, TCP/IP
What costs would be incurred to switch the Hybrid TCP/IP-OSI Architecture a pure OSI architecture? Could it be done?
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| September 26, 2008 2:44 AM
Network design, networking standards, OSI Architecture, TCP, TCP/IP
Determine TCP port used by a connection.
We have an application that has our iSeries(AS/400) connect to a remote IP address and port. If we have to end the application and restart it (IPL, error, end/start subsystem) the iSeries keeps the connection open. AFter the application is restarted, the TCP connections show two connections to the remote IP, and the application does [...]
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| September 2, 2008 7:29 PM
CL, CLLE, iSeries networking, RPGLE, TCP
We have an application that has our iSeries(AS/400) connect to a remote IP address and port. If we have to end the application and restart it (IPL, error, end/start subsystem) the iSeries keeps the connection open. AFter the application is restarted, the TCP connections show two connections to the remote IP, and the application does [...]
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| September 2, 2008 7:29 PM
CL, CLLE, iSeries networking, RPGLE, TCP
Job 162968/QTCP/QTFTP00076
We have several entries in our log. What is this message. Job 162968/QTCP/QTFTP00076 started on 06/07/08 at 15:00:02 in subsystem QSYSWRK in QSYS.
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| July 10, 2008 5:54 PM
logs, Message, TCP
We have several entries in our log. What is this message. Job 162968/QTCP/QTFTP00076 started on 06/07/08 at 15:00:02 in subsystem QSYSWRK in QSYS.
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| July 10, 2008 5:54 PM
logs, Message, TCP
Receive window shrinking
Why does the size of the receive window cycle up and down and eventually fall to zero?
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| June 30, 2008 4:05 AM
TCP, TCP Window, Transmission Control Protocol
Why does the size of the receive window cycle up and down and eventually fall to zero?
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| June 30, 2008 4:05 AM
TCP, TCP Window, Transmission Control Protocol
PLSQL based method to capture emails from POP server
I am using UTL_TCP package of PLSQL. I am able to connect to the POP server but I am unable to retrieve any email content. Using the UTL_TCP.available() method, I am getting the returned number of bytes as Zero inspite of their being an email. I tested the telnet commands againt the POP server & [...]
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| September 22, 2008 7:21 PM
PL/SQL, POP3, TCP, UTL-TCP
I am using UTL_TCP package of PLSQL. I am able to connect to the POP server but I am unable to retrieve any email content. Using the UTL_TCP.available() method, I am getting the returned number of bytes as Zero inspite of their being an email. I tested the telnet commands againt the POP server & [...]
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| September 22, 2008 7:21 PM
PL/SQL, POP3, TCP, UTL-TCP
Options for Connecting 2 AS/400
We currently have two iSeries connected via TCP in our network. One of the iSeries belongs to a division we no longer own and we are investigating removing them from our network. They will continue to perform services for us and are located close by. We currently have a number of DDM files setup and [...]
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| May 28, 2008 2:17 PM
DDM, iSeries networking, TCP
We currently have two iSeries connected via TCP in our network. One of the iSeries belongs to a division we no longer own and we are investigating removing them from our network. They will continue to perform services for us and are located close by. We currently have a number of DDM files setup and [...]
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| May 28, 2008 2:17 PM
DDM, iSeries networking, TCP
Does the Delayed ACK feature make useless the TCP Window Size?
Does the Delayed ACK feature make useless the TCP Window Size? First of all I performed several FTP downloads, with Wireshark tool capturing what’s going on during the FTP session. I observed that for every 2nd DL FTP-DATA received from the FTP server, my WindowsXP client sent a TCP ACK. Throughout the entire FTP session, [...]
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| July 24, 2008 1:18 PM
Delayed ACK, Linux, TCP, Window Size
Does the Delayed ACK feature make useless the TCP Window Size? First of all I performed several FTP downloads, with Wireshark tool capturing what’s going on during the FTP session. I observed that for every 2nd DL FTP-DATA received from the FTP server, my WindowsXP client sent a TCP ACK. Throughout the entire FTP session, [...]
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| July 24, 2008 1:18 PM
Delayed ACK, Linux, TCP, Window Size
Windows xp pro lost tcp/ip protocol
I have an xp pro machine I have been unable to restore the tcp/ip to the adapters. I havereplace the network adapter and even added a wireless to the machine,but I can’t get them to pick up anip address. When I run ipconfig it gives me a message to contact microsoft, I have been through [...]
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| February 19, 2008 7:32 PM
Networking services, TCP, Windows XP
I have an xp pro machine I have been unable to restore the tcp/ip to the adapters. I havereplace the network adapter and even added a wireless to the machine,but I can’t get them to pick up anip address. When I run ipconfig it gives me a message to contact microsoft, I have been through [...]
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| February 19, 2008 7:32 PM
Networking services, TCP, Windows XP
how to test a 10/100 mbps ethernet swtich
I have a 10/100 Mbps ethernet switch which is claimed to not function properly. So is et up a LAN using the switch, issgned IP address to 2 computer, connected them to the swtich and started pinging one computer from the other. So, now , after pinging PC1 from PC2, all the ports on the [...]
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| July 23, 2010 5:49 PM
Network testing, Networking, Switches, TCP
I have a 10/100 Mbps ethernet switch which is claimed to not function properly. So is et up a LAN using the switch, issgned IP address to 2 computer, connected them to the swtich and started pinging one computer from the other. So, now , after pinging PC1 from PC2, all the ports on the [...]
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| July 23, 2010 5:49 PM
Network testing, Networking, Switches, TCP
TCP/IP Problem
A few years ago, a consultant did a migration from one WIN2k server to another. Ever since then the server will not hold static IP address or it looks like that. Even if you login as administrator. Anyone know how to fix this?
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| September 26, 2007 2:56 PM
TCP
A few years ago, a consultant did a migration from one WIN2k server to another. Ever since then the server will not hold static IP address or it looks like that. Even if you login as administrator. Anyone know how to fix this?
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| September 26, 2007 2:56 PM
TCP
TCP Retransmissions b/c of Checksum Incorrect
We have a problem where some users will complain of slow application response time (on the LAN) from our ERP server, but others will be fine. After many hours of troublshooting I’ve discovered the following: - Packet Sniff’s of affected users shows TCP Retransmissions because the Checksum is Incorrect from the server. - Replacing the [...]
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| February 4, 2009 3:55 PM
Bandwidth, Cabling, Cisco, Ethernet, Fault isolation, Hubs, IPv4, NetBIOS, Network protocols, Network testing, Networking, Protocol analysis, Routers, Switches, TCP, TCP/IP
We have a problem where some users will complain of slow application response time (on the LAN) from our ERP server, but others will be fine. After many hours of troublshooting I’ve discovered the following: - Packet Sniff’s of affected users shows TCP Retransmissions because the Checksum is Incorrect from the server. - Replacing the [...]
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| February 4, 2009 3:55 PM
Bandwidth, Cabling, Cisco, Ethernet, Fault isolation, Hubs, IPv4, NetBIOS, Network protocols, Network testing, Networking, Protocol analysis, Routers, Switches, TCP, TCP/IP
Dell Optiplex GX520 hibernation/sleep mode issues
Hello, We have several Dell Optiplex GX520′s on the network running Windows XP pro. They randomly fall into sleep mode. Moving the mouse will not wake them – you have to push the power button to get them out of sleep mode. Also we are not able to remotely wake them to do patch updates [...]
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| November 22, 2009 3:45 PM
Availability, Bandwidth, Cabling, DataCenter, Dell, Desktops, DHCP, DNS, Ethernet, Fault isolation, FDDI, Frame Relay, H.323, Hardware, Hubs, Interoperability, IPv4, LDAP, Management, Microprocessors, Microsoft Office, Microsoft Windows, MPLS, NetBIOS, Network applications management, Network management software, Network monitoring, Network protocols, Network testing, Networking, Networking services, NIC, OS, Patch management, Protocol analysis, Remote management, Routers, Security, Servers, SIP, Software, SQL Server, Switches, TCP, Tech support
Hello, We have several Dell Optiplex GX520′s on the network running Windows XP pro. They randomly fall into sleep mode. Moving the mouse will not wake them – you have to push the power button to get them out of sleep mode. Also we are not able to remotely wake them to do patch updates [...]
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| November 22, 2009 3:45 PM
Availability, Bandwidth, Cabling, DataCenter, Dell, Desktops, DHCP, DNS, Ethernet, Fault isolation, FDDI, Frame Relay, H.323, Hardware, Hubs, Interoperability, IPv4, LDAP, Management, Microprocessors, Microsoft Office, Microsoft Windows, MPLS, NetBIOS, Network applications management, Network management software, Network monitoring, Network protocols, Network testing, Networking, Networking services, NIC, OS, Patch management, Protocol analysis, Remote management, Routers, Security, Servers, SIP, Software, SQL Server, Switches, TCP, Tech support
Can’t get DHCP to give addresses
For the life of me can’t seem to setup my server. I have 2 Nics for extra security and what is recommended for Remote Access. This worked with SBS but I just installed windows 2003 server and want to setup remote access server and exchange 2007 I have the external card: 192.168.1.5 IP 255.255.255.0 Subnet [...]
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| June 26, 2007 10:51 AM
Desktops, DHCP, DNS, Management, Microsoft Windows, Network testing, Networking services, OS, Ping, Security, Servers, SQL Server, TCP
For the life of me can’t seem to setup my server. I have 2 Nics for extra security and what is recommended for Remote Access. This worked with SBS but I just installed windows 2003 server and want to setup remote access server and exchange 2007 I have the external card: 192.168.1.5 IP 255.255.255.0 Subnet [...]
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| June 26, 2007 10:51 AM
Desktops, DHCP, DNS, Management, Microsoft Windows, Network testing, Networking services, OS, Ping, Security, Servers, SQL Server, TCP
IP ADDRESSING AND SUBNETING
Hello Can some one help me with an easir way of calculating subnets and host per given IP address
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| February 23, 2010 3:57 AM
IP addressing, IPv4, Subnets, TCP
Hello Can some one help me with an easir way of calculating subnets and host per given IP address
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| February 23, 2010 3:57 AM
IP addressing, IPv4, Subnets, TCP
DNS Packet Drops
The server running on windows 2003 (not primry domain) is used as DHCP server to issue client IP. I configured a 2wire router on this. but the conectivity to server keeps droping now and then. Could anyone here please let me know the possible cause? Best regards,
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| May 4, 2007 12:31 PM
Availability, Bandwidth, Cabling, DHCP, DNS, Hardware, Hubs, Microsoft Windows, NetBIOS, Network monitoring, Networking, Networking services, Performance management, Ping, Routers, Switches, TCP
The server running on windows 2003 (not primry domain) is used as DHCP server to issue client IP. I configured a 2wire router on this. but the conectivity to server keeps droping now and then. Could anyone here please let me know the possible cause? Best regards,
Answer Question
| May 4, 2007 12:31 PM
Availability, Bandwidth, Cabling, DHCP, DNS, Hardware, Hubs, Microsoft Windows, NetBIOS, Network monitoring, Networking, Networking services, Performance management, Ping, Routers, Switches, TCP
Looking for clarification on new IP layout
I currently have a 192.168.1.0/24 network. I have one cisco router with many cisco switches that allow everyone to have a DHCP ip of 192.168.1.X. I will soon have more people then the /24 will handle, so I would like to switch to: 172.16.30.0 subnet 255.255.254.0 mask 172.16.31.255 broadcast That gives me as my starting [...]
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| February 4, 2009 2:26 PM
Active Directory, Cabling, Cisco, DHCP, DNS, Ethernet, Hubs, IP, IPv4, Network monitoring, Network protocols, Networking, Networking services, Routers, Switches, TCP
I currently have a 192.168.1.0/24 network. I have one cisco router with many cisco switches that allow everyone to have a DHCP ip of 192.168.1.X. I will soon have more people then the /24 will handle, so I would like to switch to: 172.16.30.0 subnet 255.255.254.0 mask 172.16.31.255 broadcast That gives me as my starting [...]
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| February 4, 2009 2:26 PM
Active Directory, Cabling, Cisco, DHCP, DNS, Ethernet, Hubs, IP, IPv4, Network monitoring, Network protocols, Networking, Networking services, Routers, Switches, TCP
