What Will Happen If All Ports Are Blocked Except 80 And 443 In Router
Jan 5, 2013
As we are unable to control downloads and P2P use in our network, we are thinking to block all ports except 80 and 443 in our router so that they can only browse and use them only for office use. They should also be able to use messengers like skype, YM, MSN and also download any attachments in email.I wonder if we implement this, will it going to work or will there be any problem in accessing normal websites too? I know to control downloads there are many premium hardware and software firewalls out there but we don't want to invest any thing for now.I also know PTP clients can still use 80 and 443 ports to connect but it will need user to change manually port so it's fine with us.
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Mar 18, 2013
I have been trying to get port forwarding to work for a week now with no luck. I use Centurylink for Adsl, modem is a zyxel 660r, router wrt54g, running windows 7.I have made my modem a bridge only. I have set my computer to a static ip. I have followed all the instructions for port forwarding on linksys. Still my ports show blocked no matter what check I use on the Internet.
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Dec 16, 2011
On my home network I have two computers:
PC#1 - my main computer
PC#2 - my laptop
Each of these has Windows 7, Avast! Anti-VirusToday I was working on a website on PC#1. When I attempted to upload the files via FTP, the connection failed repeatedly. When I went onto PC#2 it worked first time.I also tried to launch World of Warcraft on PC#1, this failed. It worked first time on PC#2.Websites work fine, so port 80 appears to be okay.I have reset my router to factory settings. ipconfig /release /renear /flushdns all made no difference.
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Jan 30, 2011
I have seen several cases where ISP's block traffic on both UDP and TCP ports 135-139 even in core firewalls. Port 135 should be Microsoft EPMAP service and ports 136-139 should be NetBIOS services. However, why do ISP's sometimes block traffic on those ports?
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Nov 16, 2011
I am currently using OpenVPN with Your Freedom to bypass my school firewall to access the internet (ports for gaming are blocked)
I read the other day that I can connect to my home internet from here and have my computer behind this firewall just use my home internet connection.
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Feb 13, 2011
I am stuck in an area that has severly restricted access. I would really like to continue to use my news reader services. However, the guy who set up the nearside router has torrent ports blocked, news group ports blocked, etc.So that people can't bog down the network with downloads.
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Oct 16, 2012
I've been trying to open ports 5800 and 5900 for UltraVNC and checking them with online port checkers, but they are always listed as closed. I've even tried taking town windows firewall, my router firewall (although as soon as I disable and apply, it automatically switches back to enabled again), and also DMZ'ing my router. I wonder if it might have something to do with my new modem, but in the config page for that, the advanced settings are locked out. the modem is an arris TM722G, and the router is a linksys wrt-54G with DDWRT firmware.
I'm running windows 7 x64 and using a static local IP, I want to be able to use DynDNS to connect to UltraVNC.
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Jan 2, 2011
if no route is found to the destination in wireless networks what will happen to the data packets that are being transfered. will tey be lost or ll be queued in the intermediate nodes.
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Nov 4, 2012
I am running two ASA 5520 routers synched up with eachother. I had a massive connectivity issue this weekend that I am investigating. Now I have figured out how to get the live logging but I need to know how to get the old logs from my router.Also I am looking to set up a log dump that could happen daily or perhaps weekly.
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Aug 7, 2011
How many of the 881 switch interface ports can be used as router ports, have used the 877 etc where i can use 2 but need a low cost router that supports 3 for routing. (needs to be physical ports)
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Mar 8, 2013
In my office there is n computing using a Digisol router, and a Broadband connection(BSNL) whose modem is of ZTE. My boss has blocked the internet service to those systems and the error message is "Local Area Network doesn't have a valid IP configuration". how to unblock it as a system parallel to it which is independent from N computing is having internet connection.....
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Nov 2, 2012
Uninstalled McAfee. Installed Frontier Secure, which uses the Windows Firewall. Received Windows Security Alert message that my Belkin USB Storage Center (where the printer is listed) was being blocked, and would I like to allow access. I selected "Allow Access". Printer has not been connecting all week. No error messages - it tries to connect, and then just stops. Can't find issues with the router or the printer - only with the firewall. Everything looks the way I assume it should - the printer is listed in the Belkin storage center. The Belkin storage center is listed in the firewall. There is no tech support for the firewall. There is no tech support for the printer.
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Sep 4, 2006
I've a BEFW11S4 router that was working fine for 5 years, until the other days it would not let me go to url... but any other websites works just fine.
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May 23, 2012
How many urls can you block with this router also is it good for games and watching videos or is it just a slow business router for business stuff ?
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Sep 16, 2012
I am encountering an issue with IPv6 trace route both from within LAN as well as on the Cisco router is unable to function beyond the WAN interface of my Cisco 1941 router with IOS v15.x.
Below is the IPv6 Access List:
[code]
sequence 410 remark Allow Specific Inbound ICMP Types
permit icmp any 2001:D98:XXXX::/64 1 3
permit icmp any 2001:D98:XXXX::/64 packet-too-big
[Code].....
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Sep 7, 2012
I have the EA4500 router with cisco connect cloud, must say this router is great for limiting kids online.1 question I have however is the ability for a blocked user (internet access block) that is redirected to the cisco web site and presented with a log in screen. Is there anyway I can disable this becuase the kids stay up all night trying to figure out the password to log in, I just want it to say internet access blocked with no option for logging in for the blocked user.
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Dec 11, 2011
I'm setting up WHS 2011 for the first time. When attempting to set up Remote Web Access, WHS continues to recoginze my E4200 model information and router IP address but delivers the message 'Remote Web Access to Your Server is Blocked'. Cisco and MS say the router is compatible with WHS and that it should set up through the wizard but no luck following many attempts, including manual set up of DHCP Reservation and Single Port Forwarding on ports 80/443 (not sure I did this correctly).
I've taken the router back to default settings with the exception of enabling Remote Management under the Remote Management Access section of the Administration menu tab; tried again with the same result. What settings to change to make this work?
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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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May 13, 2012
I setup several devices in the Parental Controls to be blocked always. These devices are still able to connect to the router. I tried rebooting the router but the problem persists. I have two laptops and two iPod Touches that can connect regardless of the access restrictions.
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Jun 9, 2013
We have an ASA 5505. 5505 comes with two default vlans 1&2 with each of them marked as inside & outside respectively.My query is , if i do not want to use vlans on 5505 and only want to use the Ethernet ports as pure physical layer 3 ports, is it possible?i.e. i want to assign a layer 3 ip address on eth0/0 and eth0/1 and make them as the inside & outside interfaces rather than vlans. is it possible to do away with vlans in 5505 & will it work otherwise?
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May 14, 2013
Is there a way to associate spare firewall ports with another port that is being used..For example...int gi 0/2 is being used currently for my web dmz. Its ip is 192.168.10.1..Is there a way for me to associate gi 0/3 with the same layer 2 as gi 0/2 ?
In my webdmz I use 2 ACE 4710 proxys in FT mode. I used a layer 2 switch to connect firewall and proxys together.
I would like to eliminate this switch if possible..and connect both 4710's (layer 2) direct to firewall.If I could make gi0/2 - 4 part of the same vlan, then I would be good to go.
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Feb 2, 2012
One of techs accidentally connected two access ports from different switches together. Since then, LMS is alerting them as being Link ports down. I tried to default the config and set them to access ports without any success. what I should do in LMS to recognize them as access ports?
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Aug 10, 2011
I can get to anywhere I want on the web except one IP, and I can't ping it either. What can cause this? (Security off)...
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Dec 2, 2012
It's a newsgroup site that I subscribed to. So far, this is the only website I know of that they blocked.
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Mar 26, 2013
My Company Website IP Gets blocked on my Internet Connection and i have to disconnect and Reconnect to the ISP to solve the problem, all other sites work fine only my website address gets blocked, we use emails of our company site and this may be the reason, but i cant fix the issue
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Jan 11, 2013
setup a web server at home but just found out yesterday that my ISP is blocking port 80 on my network and they won't open it unless i upgrade my internet service... which i am not sure if there is any other way get this solved. If I port forward my site at my web server to (let say) 85, when someone type [URL] (with 80 by default), will it be somewhat in the cloud or some server to NAT 80 to 85 at my site? In short, can one type [URL] instead of [URL] ?
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May 11, 2011
My internet provider have blocked a website. I know there is a way to bypass the block and go to the website, without using websites such as Hide My ***! Free Proxy and Privacy Tools - Surf The Web Anonymously.
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Feb 6, 2011
For some time, I cannot access some websites. It gives me a 401 the web site is blocked by the administrator. I use a d-link router and my brother is the administrator. He told me he hasn't blocked anything. We tried to reset the router but it still gives me the 401 problem.I think it isn't a router problem. I have tried using my laptop and tried to access some sites. It still gives me the error so i dont think it's a computer related problem. I have tried to ping it. It still doesn't work. I have also tried to erase all the cookies and cache. The problem is still there. How can I fix this? My operating system is Windows XP Professional version 2002 service pack 2.
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Dec 25, 2011
For several days, I have not been able to access any Wordpress.com websites and my blog is located on Wordpress. I can access every other website on the internet. I live in Nicaragua and my ISP is Intel. Everyone else can access my blog, however I am blocked from all wordpress.com sites. I can access my blog through a free proxy service, so I know my blog has been blocked. If I change my IP by paying for a proxy service?
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Mar 28, 2013
I have a brother who frequently blocks my internet access, and he does it while maintaining his own connection so he's not unplugging the router or anything. He also blocks it from his own computer, meaning he doesn't take out my wireless card or anything like that. I was wondering how to counter this and get my internet back whenever he blocks it, or prevent it.
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Mar 22, 2011
just tried to log onto my hotmail account and it come up with a notice that its blocked. did all that hotmail said but it still won't recover
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Jun 26, 2011
malcious url blocked messages while using a enternet browsing.
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Sep 15, 2011
I have a home server running CentOS 5 and is accessible over SSH (port 22).When I am at work I am behind a firewall that blocks all ports except the ones needed. So port 22 is blocked to the outside world.Is there a way for me to get an SSH connection to my server? (ie: SSH tunneling or so?)by the way, websites with advanced web based SSH javascript(s) such as serFISH are blocked as well.
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