Routers / Switches :: Seeing Allowed Connections From Blocked Servers?
Jun 23, 2012
Does the Host file allow connections to your computer?Although I have placed some server names into the host file, Wallwatcher 5.0 is indicating that those servers have made connections. This didn't seem to be a problem before I took some online advice to add servers to my host file. I use iptables on a WNDR3700 router with DD-WRT firmware. In the iptable rules I've also blocked these servers. One example is cnbc7.net and a couple of U.S. Akamai servers.
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Nov 30, 2011
Is it possible to get both allowed and blocked web access logging? I'm using the 2.06NA firmware and no matter how I configure the router, I just can't get it to work, so either I'm missing something or the firmware has a defect, I hope its me, but I fear its a defect.
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Mar 8, 2013
I have a flashed Asus RT-N12B1 that was working but now has ceased working I am trying to get the info from the router using 192.168.1.1 ;but cannot get that working . I need to access the control panel in the router to change some parameters . To do that I have to access 192.168.1.1 .Safari does not allow me to do this .
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Jan 6, 2013
I am trying to create a server in a game called Minecraft. I have forwarded port 25565 (which I put in the server settings for incoming connections and I checked that 10 times so that is ok) on my thomson TG787. I've opened the same port on my firewall in windows 7. I've disabled my firewall completely. But it's still blocked. It's simply doesn't work..I'm 100% I fixed it on the router.
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Jan 23, 2011
I am trying to create a server in a game called Minecraft. I have forwarded port 25565 (which I put in the server settings for incoming connections and I checked that 10 times so that is ok) on my netgear wnd3700. I've opened the same port on my firewall in windows 7. I've disabled my firewall completely. Everything should be cool, but still, checking with canyouseeme.org and asking friends to join. It is still blocked. It simply doesn't work.. I checked my router for any firewall but couldnt see any.. So yeah I'm 100% I fixed it on the router, unless someone is gonna tell me that there is still an option in the router that might fix it.. but I think I did something wrong in the firewall..Although I have been trying to get this to work all day.. I'd rather get some advice on the firewall or other options in my router. Btw, I am using AVG free edition, and I am pretty sure there is no firewall in that version, but there might be something I have to disable in order for this to work ?
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Sep 16, 2011
We are having a workgroup of 12 Pc connected using a switch (hub) having all Windows XP SP2 and some of them registered Kayspersky antivirus 2011. We have internet access using D-Link 2460T (DSL wireless ADSL router) connected to our LAN using a network wire and having DHCP enabled. Everything was working well for 4-5 years but recently a problem appeared.
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Apr 6, 2012
i have been trying to forward port 25565 for a server on a game called minecraft. I have a bt homehub 2 and i have followed everything on portforward.com and on several videos and still no luck. I have B.T net protect plus so I don't know if the firewall is blocking the port
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Jul 27, 2011
I have just deployed a 881 router at a clients site & configured it to allow remote IPSec VPN connections using the Cisco VPN Client software.
The router works fine except for the remote VPN connections.
Client VPN connections are not being allowed and I am sure the problem is the zone based firewall. I have had very little experience with this, most of my experience is with ACL based security.
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Apr 9, 2012
The address of my server, as a url, not the IP Address. I already have that, and how to find the number of connections allowed by my provider, which is clearwire.
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Aug 18, 2011
..how many PCs are allowed to connect to the printer via printer sharing? Is it unlimited?
..the printer are connected to the main PC
printer : Canon Laser Shot LBP-1210
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Feb 24, 2011
When I want to open youtube or facebook,the mesage appear as "The site is blocked by netgear"
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Feb 1, 2011
I've been fighting with getting VPN connections working properly with my Dlink router. I set up virtual servers for PPTP and L2TP and could usually get the first attempt to work. Subsequent client connections would always fail.The logs display the following-Dropped GRE packet from 192.168.0.10 to 64.232.xxx.xxx as unable handle packet header. Blocked incoming GRE packet from 64.232.xxx.xxx to 76.105.xxx.xxx.What seemed to fix it was going to Firewall Settings and setting UDP Endpoint Filtering to Endpoint Independent and TCP Endpoint Filtering to Address Restricted.
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Jan 24, 2012
I'm not sure about my title, it;'s the best I could come up with. I have approximately 7 computers, two iPhone, and iPad, wireless printers and a network attached storage. Most are connected over via wifi, the exceptions being one pc, the nas and a printer. I plan to add six more devices plus some ip cams. The way the router or network is configured whenever a guest connects to our wifi they can "see" our computers. I haven't been able to tell if they can see the files or just the name of the computer. Question 1: How can I tell if the guests are able to access the data on our computers or networked drive? Question 2: If I add a switch will I need to do anything special with regard to security?
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Oct 2, 2011
My itty bitty manual just shows on how to hook up my router via cable modem...nothing on how to secure it. I go into setup of the router and see where one can add info but am at a loss what to enter. I tried, merely by guessing, applied the info, and screwed up my networking. I couldn't even get into my router to revert back, cause i couldn't get on line...finally i reset manually my router and all is well again, except when i see a list of nearby network users, mine is the only one that says unsecured.
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Aug 20, 2012
I have 2 switch groups.
2 SGE2010's with VLAN's defined as 10,20 and 30
Vlan 10 is the management VLAN, and it uplinks to our border router.Vlan 20 is the workstation VLAN, and all workstations point to the switch as their default GW? Vlan 30 is the ip phone VLAN, and all phones use this as their gateway.
I would like to put a LAG between said switches, we have some servers on the ip phone switch that need to be accessed by the workstation clients, and the single 100mb link through the router is probably not going to be enough.As I understand it, because the switches have different networks on them, a simple lag will not work. I did create a lag, and assign ip addresses to each side, however in that mode, it doesn't appear I can block vlan 10 from transiting the LAG, and with out that block I will end up with a logical loop, and spanning-tree will block one of the uplinks, or the LAG itself.
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Mar 24, 2011
ipconfig /all reports one of my three DNS servers as 192.168.1.1. My Default Gateway and DHCP Server are also reported as 192.168.1.1. This is from a recently installed Valet M10 updating an old Linksys router. The Linksys reported the three DNS servers octets independent of the router's ip and other default settings.JK
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Jul 19, 2012
We are planning 3 Internet Connections into our building. 1 will be for actual Internet traffic, 2nd for Voip phone system, and 3rd for internal network for Active Directory...etc. Oh the AD servers are controlled by another business so technically this line is still considered and outside line and is a T1. What I need to know is how best to make this all work so that our internet phones use the VOIP system, computers can log into the domain and access that network but use the Internet network for actual internet traffic? We were considering a series of managed switches and creating 3 VLAN's but I'm thinking we instead need a new router that all 3 networks connect to and dishes out DHCP to computers and phonesn example network is below.192.168.1.x ----> Internet (all computers use for internet traffic)72.10.10.x ----> VOIP (All physical and software phones use this network)10.10.10.x -----> Connection to external company that controls our network and has domain controllers, mainframe...etc.
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May 24, 2012
Had laptop connecting wirelessly perfect with no problems. We then added another laptop and PSP 3 to the house hold. Any of the 3 devices will connect to the internet via wireless but ONLY one at a time. If you are connected with one and turn on one of the others it will kick the one off that you were on and only 1 device can use wireless at a time?
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Apr 14, 2013
Region : UnitedStates
Model : TL-WDR4300
Hardware Version : V1
Firmware Version : Latest
ISP :
The UDP connections are being blocked when I use my VPN. I can connect for a while but soon after a while, the connection doesn't work. I can't even access the router page.
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Dec 25, 2012
Am I limited to how many devices can connect to my wireless router 802.11g
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Jun 8, 2011
i need to use two LAN connections one of INTERNET and one of internal server
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Jan 11, 2013
I have successfully configured my DHCP server because I can ping it from the clients PC and my clients PC automatically grabs IP from my DHCP. How my clients can have access to internet. Here is my hardware setup: 1. I connect clients PC and one DHCP server in one unmanaged switch2. I have my Bell DSL Modem but not connected yet to one of these machines. I do not know how I can configure it yet to work with my machines.The IP I assigned started at 10.10.200.10 to 10.10.200.90How do I connect the DSL and configure so that it may give everyone access to internet?
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May 29, 2011
I have a small, simple small business network. There are 2 switches - an 8-port switch connected to my main Windows server (which is the DHCP provider for the network), and a 24-port switch which is plugged into the 8-port switch.
I replaced these switches (Dell unmanaged switches) with the Cisco 200 series smart switches (the 8-port and 26-port models). When I plug the 26-port switch into the 8-port switch, it is unable to get its DHCP address from the Windows server. Also, any device plugged into the 26-port switch cannot communicate with any other device, and all of the ethernet port lights flash at the same time at the same frequency - quite a light show!
If I plug the Windows server DIRECTLY into the 26-port switch it receives a DHCP address.
I have tried a 2nd Cisco 26-port swtich and it does the same thing, so I assume it is not a hardware issue.
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Aug 23, 2012
I am on version 8.2(1) of ASA Code.When accessing a SQL server on a secure internal interface,(Traffic is sourcing from DMZ) i'm getting some timeouts on the initial connection on port 1433. All subsequent connections work fine. Packet tracer shows the connection builds properly, and shouldn't have a connectivity issue. The problem server is a webserver that connects back through the firewall to access the SQL server on port 1433. We also have many other webservers in the DMZ which access the same SQL server, but do not have the same timeout issues. Here are my timeouts, from the config
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute
timeout tcp-proxy-reassembly 0:01:00
arp timeout 14400
I've seen a couple articles about increasing the tcp timeout to 3 hours for the DMZ interface?
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Nov 24, 2012
how to get my servers to run with 2gbs connections on the network. Is it all the same thing just different ways to do it? Some server side, some switch side, some both?In terms of my equipment, I have an Asus RT-N16 router [URL] D-Link DGS-1024D [URL] And (Not hooked up, but i have). Dell 2708 managed switch. [URL]This MOBO (790FX-GD70_[URL] With these NIC's Realtek RTL8168D/8111D Family PCI-E Gigabit Ethernet NIC (NDIS 6.20) As i said before, id like to trunk/bridge/ w/e you want to call it, so i can get more bandwidth too and from the server.
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Jul 21, 2012
We are upgrading out internal office network. I have setup 4 switches and 1 router using the following config.
-2 SGE2010p's are stacked together forming vlan 30 (to be used for phones)
-2 SGE2010's stacked for workstation's under vlan 20
Both switches are apart of vlan 1 (the default)Ports 1 on each stack are connected to a Cisco 890 (port fe2 and fe3) in trunk mode. Ports 2 and 3 are in an LAG group and connected to the neighboring stack (I have attached a diagram), and are also in trunk mode).At this point one port (port 1 on either stack) goes into blocking mode, and I get why ,it's a physical loop.I need more than a 100mb link between switches (which is what pulling the LAG between switches gets me), but I don't want to route phone traffic through my workstation switches to get out of the LAN.Is it possible using these switches and router to have a LAG between stacks and a link to the router for traffic to 0.0.0.0 ?
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Aug 30, 2011
I'm new to networking (at least at this level) and need some guidance. First, I have an Actiontec MI424WR (Rev. F) Coax Verizon Fios modem that I use as my home networking wireless router. From a LAN port on that I've connected a cable to the WAN port on my DIR-655 which acts as my gigabit office hard wire/wireless router. I need to keep the home network and the office network separate.All of my computers are Windows, either 7, Vista or XP.Connected to my Dir-655 on the office network are 2 wireless computers, a printer, an IOMEGA 1TB Home Personal Cloud NAS HDD, plus 2 desktop computers.The DIR-655 is set with a static IP address matching the range of the Actiontec. The DIR-655 is set for DHCP for the devices on the network (although 2 of the computers have static IP address).
When the DIR-655 had a Dynamic IP address set by the Actiontec, the IOMEGA NAS HDD kept losing connection with all the devices on the network. Only after I set the DIR-655 to static IP did that stop and everybody started to play nice. I'm not sure why that would make a difference, but it did.But regardless of whether it is set to dynamic or static, no computer on the network or program, even third party programs, can connect to ANY of the time servers out there... and I mean any of them. I've tried at least 20 or more of the standard and not so standard ones. The DIR-655's time is off, and it is set to get time automatically. None of my computers, or my IOMEGA NAS, can access time. The Actiontec, though, seems to be set correctly.Everything connects to the internet just fine. Web, email, auto product upgrades. Fine. So far it's just the time server thing which troubles.I done everything I know how to do to enable Port Forwarding through both routers for NTP > UDP 123 since that is the standard port for the Network Time Protocol, but I could have easily screwed that up.
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Sep 11, 2011
I have 2 internet connections in my office one via Verizon Fios and another one via the local cable company. On the fios connection I have an RV042 VPN router and on the Cable company connection I have an rvs4000 router, I would like to know if there is a way I can connect the 2 so I can share a printer I have on one of the 2 networks from the other network without using the VPN feature, like via an ethernet cable connected between the 2 and some kind of static route maybe?
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Apr 8, 2013
Currently I have my SG300 connected to a Wireless Router which is, in turn, connected to a Cable Modem.
I'm considering adding a second cable modem. Can the SG300 handle that?
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Apr 12, 2013
At the moment i have 2 internetconnentions with 2 different modems/routers. The computers are currently direct connected to the router.I'm considering adding a switch in the network and i hope i can make 2 different vlans each for one internet connection. The two networks should not be able to connect eachother.But i dont know what switch i need to do that. Do i need a Sg-200 or a SG-300 switch?
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Dec 16, 2011
I am having some challenges on my DMZ network.My servers and Cisco Switches in the DMZ are picking the mac address of the Firewall(Cisco ASA).I have put some static arp entries on the Firewall and switches but the servers and users on the DMZ are still receiving the mac address of the Firewall.How can i stop the Firewall from changing the mac addresses of the devices on the network.My ASA is a 5520 and i have 2960Switches.
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Feb 10, 2013
We are using CISCO Catalyst 6500 switches as collapsed core/distribution switches (2 layer architecture). I want to connect approximatly 10 application servers to the network. Can I connect the servers directly to the catalyst 6500 switches using WS-X6148E-GE-TX line cards? The other option is to use access switchs and then connect the servers to the catalyst 6500 through access switch(Catalyst 3750).
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Oct 11, 2012
I have configured a Microsoft Server 2008 R2 with Radius Server and connect it with a Cisco SG300 Switch.
If a new device connect to the switch it goes automatically to the guestnet. If a device with the correct certificate and a valid useraccount connect to the switch, the deivce goes in to the local company network.
Now my problem: If I connect a device which is in the domain and which have installed the correct certificate and want to login with a new domain user (which is not cached in windows) I can not login.
The following message appears: "There are Currently no Logon Servers Available"
I think the problem is that the authentication process only starts after a user have succsess logged in in windows.
Now I search for a solution which allows me to conntact the Logon Server for Domain Login before the User has logged in.
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