Cisco :: Identify The Point At Which A Connection Is Failing?
Jul 31, 2012
I've got an application running on a Windows 2008 server that I have verified as live on port 8085 at localhost. I've also verified on the server itself that port 8085(and in fact, all ports) are open right now. Despite this, I have no connection to this port on the server. Let me back up a bit an explain the architecture I'm working with.windows_server >> Switch >> Firewall >> Firewall >> InternetEverything but my server is managed by my hosting company who is insistent that this is a server issue. Is there a way to find out at what point my connection to port 8085 is failing? I feel like it's stopping at one of the Firewalls but need proof of this theory to get something done about it
View 3 Replies
ADVERTISEMENT
Dec 4, 2012
I set up a connection from a laptop (Windows 7) that goes through a LAN proxy server to a secure ftp server (Windows Server 2003).The sftp server is assigned a public ip address.I opened the firewall at the destination and allowed port 22 traffic to the sftp server. Well, the connection is failing.I know for a fact the connection from the client laptop is making it to the sftp server.If I issue this command on the client laptop:
telnet sftpserver 22
The DOS screen clears and tells me the type of SSH server I'm connecting to. While this connection is still active, I logged into the destination sftp server and did a netstat command. I can see the address of the proxy server in the "Foreign Address" column of the netstat results. I also can see the proxy server address when I look at the Application Log on the sftp server, so I know the connection is making it to the sftp server.
I beleive the problem is the control port (return traffic) from the server back to the client. Something is being blocked or is misconfigured. I always thought the router negotiated the control port, and that the control port didn't need to be put into any firewalls.
View 1 Replies
View Related
Nov 6, 2012
To start off with, I own the network, and every system connected to it. I run and admin it, so the chances that anyone else has changed anything is essentially zero.This computer has a wired network connection (The issue) and a wireless one. They are connected to two separate networks. A few days ago the wired card stopped getting an IP address from my router, always ended up with a 169 address. Eventually I just disabled it, and installed a PCI network card.
Now what happens is that all works fine for a while, then stops. Suddenly I am "Not connected to network" despite the fact my ip address hasn't changed. I run the network troubleshooter, it tells me the "Gateway is unreachable" Resets the network card, and all is good. Then after a while the network fails again. I did already scan with malwarebytes, and everything is fine as fat as its concerned.
View 4 Replies
View Related
Jul 24, 2011
The connection of the computer before is activating.. after how many days of using,it losses the internet connection.. what is the possible reason for this?
View 1 Replies
View Related
Oct 19, 2011
I have a server in a DMZ behind the ASA, connections to this server work sometimes and then fail others, so I dont think i'm looking at an ACL or NAT problem here.The syslogs report a SYN Timeout,I have taken a trace on the ASA, it seems that a SYN-ACK does come from the destination server within the 30sec timeout, but its not passed through the ASA back to the source ? there is one odd thing, what seems to be an out of sequence ACK from the destination which arrives before the SYN-ACK at the ASA, i'm wondering if this might be the problem ? This only occurs on the connections which fail, the connections that work, the destination responds quickly to the initial SYN, and the 3way handshake completes.
Syslogs :
Oct 18 19:17:32 nzlsudfedsi001-pri Oct 18 2011 19:17:32 NZLSUDFEDSI001 : %ASA-6-302013: Built outbound TCP connection 42327212 for IIP-ARCHIVE-PROD:172.24.32.31/21 (172.24.32.31/21) to BPO-TRANSIT:x.x.x.x/59392 (x.x.x.x/59392)
Oct 18 19:18:02 nzlsudfedsi001-pri Oct 18 2011 19:18:02 NZLSUDFEDSI001 : %ASA-6-302014: Teardown TCP connection 42327212 for IIP-ARCHIVE-PROD:172.24.32.31/21 to BPO-TRANSIT:x.x.x.x/59392 duration 0:00:30 bytes 0 SYN Timeout
[code].....
View 2 Replies
View Related
Jul 10, 2012
I have a 1941 Cisco router with WIC-!AM-V2 card that is uning pots( regural phone ) line for data traffic.the problem I am having is the line is establishing connection but it intermittently dropos.The router is configured to dial to Centraal office and I have more that 100 other locations with the same setup that are working fine. The only differene on htis one is it is going thru a PBX line.
View 1 Replies
View Related
May 9, 2010
I am trying to configure the ACS with AD in the identity store but am running into the following issue.I enter the AD Domain Name and username and password and hit the 'Test Connection' button and receive a DNS error stating that it 'Cannot resolve network address'.I have logged into the CLI and test to the domain name from there and it works fine.
View 5 Replies
View Related
Mar 6, 2012
I have fitted a thomson router to my desktop coputer using an ethernet cable and all is working fine. My Sony Vaio laptop recognises the wireless connection but fails to connect at the acquiring network address. I have been into the properties section of the network connection page and am only allowed 8 characters for the network key. But the Network key on the bottom of the modem is longer than 8 digits.
View 1 Replies
View Related
Mar 18, 2011
I am having problems with my wireless internet. I am using windows 7 64-bit OS and am connected to a WRG614v6 Netgear router. I will be on the internet and will have superb connection then my connection will drop, when i view the network it says that i have lost IPv4 connectivity. Pulling the power to my router then powering it on again fixes the problem for a hour or two but then connection is lost again.Here is the readout when connection is stable
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:UsersKyle>ipconfig/all
Windows IP Configuration
Host Name . . . . . . . . . . . . : Kyles-Laptop
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid[code].....
View 19 Replies
View Related
May 1, 2013
I have a point to point 100mb line connecting SG500x switches at 2 locations, with these ports in a vlan together. I use layer 3 on the SG500x's to route between the two sites. I also have RIP protocol enabled to allow for automatic failover if the point to point fails (this works well).
I upgraded the ios to 1.30.59, and the connection now runs at a fraction of the speed. I have hard-coded the ports to run at 100mb full duplex, but I still only get around 12mb of throughput between the switches. I used to get about 90mb before. The provider also hard-coded the circuit to 100mb full duplex. The provider has checked the circuit remotely, and everything looks fine. I tested with a laptop at each side, and did get almost 70mb throughput. I would think this indicates some type of setting mismatch, but i cannot find anything.
I am using a backup vpn for now as some things look flaky as well (on vpn, I can use the web interface to access the SG500x on the opposite side, but on the point to point I cannot - I can ping the device though).
I have seen some references on here to shutting off STP on these 2 ports.
View 3 Replies
View Related
Sep 11, 2012
recently i just connected a non cisco ip phone(from panasonic) to Cisco 2960 POE switch at site A. The PABX system is located at site B,Site A and site B are connected using MetroE Point to point.I would like to apply QoS for voice vlan. I want to assign 2MB to the point to point connection for voice vlan.
View 3 Replies
View Related
Sep 4, 2012
I would to realize an point to point connection in L2TPv3 with a bandwidth pass through of 1 Gb. Which routers/switches I can use?
View 3 Replies
View Related
Feb 28, 2012
We have two locations 10 miles apart and need connectivity between them. A local provider can run a 30MB fiber connection between the 2 sites at a very reasonable cost. We would have to provide the routers however. I have worked with Cisco routers before with T1 channelized connections but am unsure how the the fiber would connect to a Cisco router in this scenerio. I need to know how such a connection to the routers at each end would take place, specifically what WIC or whatever else would be needed. I currently have a 1760 router at each site but realize that they are old and I m,ay have to replace them with newer models.
View 11 Replies
View Related
Jul 14, 2011
We have a point to point connection going from a regional office to the main office this is provided by a Service Provider. In our office we have an ISP and what we need to prevent from happening is that if the internet drops from the ISP we could somehow re-direct the internet traffic through this point to point connection and make it so that our Internet connection is pulled from the main office. is it just a matter of re-configuring?
View 5 Replies
View Related
Feb 15, 2012
I have 2 data centers miles apart. They are on a Paetec MPLS. I have a Lightower point to point Ethernet link between the two data centers as well. At data center A, I have a Paetec managed router (192.168.2.1). The subnets behind that router are 192.168.2.0, 192.168.100.0 and 192.168.101.0. I also have a Cisco 1841 that is configured with fa0 addressed as 192.168.2.250 and fa1 as 10.5.5.1. Fa1 is the one end of the point to point Ethernet link to data center B.At data center B, I have a Paetec managed router (10.0.2.1). The subnets behind that router are 10.0.2.0, 10.0.100.0 and 10.0.101.0. I also have a Cisco 1841 that is configured with fa0 addressed as 10.0.2.250 and fa1 as 10.5.5.2.What I want to happen is any traffic headed from data center A destined for 10.0.100.0 or 10.0.101.0 to be routed through the point to point Ethernet link. I had Paetec add routes in their managed router to route any traffic headed for 10.0.100.0 and 10.0.101.0 to my Cisco 1841 (192.168.2.250).I wanted to do the same for traffic destined for 192.168.100.0 and 192.168.101.0 from data center B. Paetec added the appropriate routes to the router at data center B.Now, if I trace from data center A to 10.0.100.45, I see this:
1 <1 ms <1 ms <1 ms 192.168.2.1
2 <1 ms <1 ms <1 ms 192.168.2.250
3 4 ms 4 ms 4 ms 10.5.5.2
4 3 ms 3 ms 3 ms 10.0.2.1
So the routing seems to be ok. However after it hits 10.0.2.1, it gets lost after that.Am I missing something? Is this a misconfiguration on Paetec’s routers?
View 1 Replies
View Related
Apr 16, 2013
I need to know if 3502p with outdoor antennas supports Point-to-Point Wireless Bridging?
View 6 Replies
View Related
Feb 27, 2013
How would I bridge a wireless connection with a distance of 400 feet? Would twoAP1262N-A-K9 be able to make this happen? Or is there another wireless bridge that you all can think of?I would be connecting one AP1262 of off a 3750g switch and at the far end (400 ft aproximately) another AP1262N-A-K9.
View 12 Replies
View Related
Aug 28, 2011
I'm a little confused about doing a translation using static identitiy NAT.I have a prorietary router that I would like to move behind my firewall (ASA 8.2x). Right now it runs in parallel with my router from a DMZ switch. I have change ISPs and the location the connection comes into my building so this confiugration is less than desirable.The vendor requires a static public address. So I am hoping/assuming a regular NAT statement of:
static (Inside,Outside) 72.12.206.211 192.168.1.xx netmask 255.255.255.255 .will work since the routers inside interface connectes to my inside LAN network anyway.
However, if they insist on having a Non-Nat'ed Public IP how do you do that? I have researched Static Identity NAT that shows the following: 72.12. 206. 211 (outside) FW (inside) 72.12.206.211
and they show a static statement of static (Outside,Inside) 72.12.206.211 72.12.206.211 netmask 255.255.255.255.How do you set up the nat statements for this configuration? Do you assigne the "external" IP address to the router even though it is behind the firewall (which is what I am asuming).
View 1 Replies
View Related
Apr 15, 2013
I have what appears to be a 2.4 GHz usb wireless adapter. My PC will not recognize it. How can I get my PC to recognize it?
View 3 Replies
View Related
Feb 28, 2011
Im attempting to connect to a password protect WAP2 Personal Wireless Network (I have Windows Vista). Unfortunately I can connect to the network but it will not Identify the network therefore I cannot connect to the Internet.
I have tried turning off the router and my computer, I have also tried both of the windows fixes for this problem (Reseting the network adapter and resetting my IP settings).
View 2 Replies
View Related
Dec 19, 2012
I've seen where the micron is printed on a fiber strand, and that you can identify the connector type, but how do identify the difference between a 50 micron OM4 MMF, a 50 micron OM3 MMF, and a 50 micron OM2 MMF?
View 7 Replies
View Related
Jun 28, 2011
I have purchased a new home where cat5e was run from several locations throughout the house to the basement. Unfortunately, the runs were not marked. I know you can short one end of each cable and measure (voltage resistance?) at the other end in the basement to identify it. I need the process and equipment required so I can wire my home. The cables are not terminated.
View 11 Replies
View Related
Aug 26, 2012
I recently got a new computer from work, and it won't connect to my home network. I restored it to factory condition, and reinstalled the drivers for the wireless adapter card, but it won't identify my home network. The network adapter is a D-Link WDA 1320 and I'm trying to connect it to my home network which is AT&T Uverse, and the router is a 2wire 3800hgv-b. Hopefully that is enough information for at least an educated guess, I'm not so hot when it comes to home networking matters.This doesn't happen on any other computer.
View 12 Replies
View Related
Jul 15, 2011
I've recently moved house and decided to go with Virgin as my ISP. I was able to connect one laptop (running Windows 7), with no hassle, to the internet just fine, however, I've tried connected another laptop (running Windows Vista) and can connect to my router but cannot connect to the internet and it's telling me it cannot identify the network =/ I also can't connect to the internet if I use my ethernet cable. I phoned up tech support also and they recommended I update my drivers, but Windows is telling me I have the most up to date driver for my network adapter.
View 19 Replies
View Related
Feb 14, 2011
Recently, I have shifted to new house, where there is alreay existing Broadband connection and i don't have the details of it. When i try to search broadband connectivity, i get too many connection details, and i am not sure which SSID belong to my house. How can i find SSID which is for my own house? Also where i can get the "Key" details required for it?
View 1 Replies
View Related
Jun 12, 2011
I am recieving full wireless signal stregth and says that i am connected but my computer cant identify the network and wont connect to the internet. I have tried everything the diagnosis has said to try but non of it has worked thus far.
View 1 Replies
View Related
Aug 27, 2012
I am getting input errors/runts on 2 of my gigabit interfaces that connect to our WAN service provider's network. In relation to total packets, its not a large number, so its probably not a big deal, but I'd just like to find the source so I stop seeing the errors in Solarwinds. Our service provider says that they don't see any errors on their side, but the errors are incoming to us.
I've tried to capture the traffic with Wireshark, but discovered that often these packets are either discarded or padded by NICs so Wireshark will not see them, or at least will not see them as undersized.
Is there any other way I can capture these packets so I can find the source and figure out how to stop them? Our equipment is 3750G running 12.2(55)SE. Its not a trunk port. I know there was a bug in prior IOS that would cause some frames to be marked as runts even though they were forwarded successfully.
View 3 Replies
View Related
Feb 9, 2011
My computer is a thinkpad with vista and when i go home to my wireless internet it connects just fine. When i go on campus to use wireless internet it also works just fine. But when i am at my apartment using a Netgear wireless adaptar connected to broadband cable provider. my computer just keeps telling me that the connection is unidentified and I have to use my ethernet cable all the time. I have two roommates that connect just fine (one has a macbook the other has xp)
View 4 Replies
View Related
Jul 27, 2012
I recently purchased a new broadband wireless GA DSL2+ router HUAWEI Echolife HG520b. I have set it up on my computer and have been successful in connecting to the internet via my laptop which runs on windows 7 but my other laptop running on windows vista SP2 is unable to connect wirelessley to the internet. It is able to find and connect to the router with no problem. But it appears unable to identify it and cannot connect me to the internet. I have tried many things and nothing seems to work.
View 3 Replies
View Related
Jun 9, 2012
Just bought a Sony Bravia KDL-46EX723 today and i am currently trying to connect it to my BT home hub via a "wired set up". BT home hub does not seem to be detecting the TV at all, when i try to do an auto set up it searches for a while and then comes back with, cable connection:failed, local access:failed, internet access:failed.I have went on to my network page to see if it was connecting to anything else and it is finding my external hardrive no problem via the Ethernet cable.I have tried looking at my computer IP details and adding them manually to the TV, but no joy, just comes back with the same errors.
View 7 Replies
View Related
Nov 16, 2011
I use windows7. Previously i had a normal internet connection (i use wireless) and few days ago my computer cant identify my network. It shows that im connected but it cant identyfy.
View 1 Replies
View Related
May 19, 2011
How can I identify loop or virus in the network? is there any command to find out these ?
View 2 Replies
View Related
Jul 12, 2011
I have a Toshiba Satellite laptop that I can't get to identify my wireless network. I can get online using an ethernet connection to the router, but it can't identify the network and the wireless connection gives me just Local Only. I have another laptop that can connect to the router, and the Toshiba can connect to other networks. For whatever reason, the issue only appears when this laptop attempts to connect to this router. I've looked for suggested fixes, but none of the following have worked: Disabling firewall Deleting network adapters and having windows install them again Confirming that dynamic IP address is assigned Confirming that DCHP is enabled Running KB928233 I've tried every suggested fix I could find and nothing has worked. I have a Clear Home modem connecting to a Toshiba Satellite A215 with a Atheros AR5007EG Wireless Network Adapter and Realtek RTL8101E Family PCI-E Fast Ethernet NIC.
System Info Utility version 1.0.0.1
OS Version: Microsoft Windows Vista Home Premium , Service Pack 2, 32 bit
Processor: AMD Turion(tm) 64 X2 Mobile Technology TL-60, x64 Family 15 Model 104 Stepping 2
Processor Count: 2
RAM: 1917 Mb
Graphics Card: ATI Radeon X1200, 128 Mb
Hard Drives: C: Total - 151125 MB, Free - 84247 MB;
Motherboard: TOSHIBA, IALAA, 1.00, 0123456789AB
Antivirus: Trend Micro AntiVirus, Updated and Enabled
View 12 Replies
View Related
