Block A Computer By Its MAC Address Not By IP?
Feb 16, 2011I want to block a computer by its MAC address, not by IP, from accessing Internet.
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Block All Internet Traffic On One Network Computer?
Jul 5, 2011I have a computer on my network I would like to use for media streaming. I would like to block all incoming/outgoing internet traffic and keep all network traffic on this computer local. Is this even possible? Can I also easily restore it if necessary? The computer is running Windows 7.
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Jan 6, 2013my brother's computer has been trying to block numerous websites recently, most notable google/youtube and apple. it doesnt seem to be a problem directly with his firewall, but it's causing many issues. I read another forum post stating to[CODE]
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View 1 Replies View RelatedDSL-320B No IP Address Given To Router Until After Cloning MAC Address From Another Computer
Jun 1, 2012We have an ADSL connection and use a D-Link DSL-320B modem. We have a D-Link DIR-120 router connected to this modem. This has worked perfectly fine up until today when we disconnected the router and connected a computer (call it A) directly to the modem because it was getting an unusable connection through the router for some reason. We later also performed a factory reset on the DIR-120 router.
Unfortunately, after the above steps the router did not receive any IP address (through DHCP) from the ADSL connection anymore. During my attempts to debug this I noticed that my laptop (call it B) didn't get any IP address either (when connected directly to the modem). I noticed the following syslog entries repeating over and over while trying to connect: [code]
At this point computer A could still get a connection just fine tho (when connected directly to the modem).
I then tried to change the MAC address of the router to an arbitrary one (a copy of computer B's MAC address but with the last digit increased by one). The router still did not get assigned any IP address. Finally I tried making the router clone the MAC address of a third computer (call it C). C has never been connected directly to the modem. Doing this worked. After cloning the MAC address of computer C the router is immediately assigned an IP address and the internet connection works as it did prior to all this.
Now, my question is, why would computer B and the original MAC address of the router not be able to get an IP address while two other computers worked just fine? Why would changing to an arbitrary MAC address not work while cloning the MAC address of another computer did? Could the router's MAC address have been blocked by the ISP for some reason (and what could cause this)?
but my situation seems more like a blacklisting of some MAC addresses rather then allowing just a single MAC address.
Block Wired Computer From Accessing Internet Through Router?
Feb 9, 2011how to block a user from using the internet when they plug their computer into a router. My roommate has refused to pay her share of the internet and, being a college student, I don't have enough money where I feel generous enough to let her have free internet after stiffing me. Basically, I have 2 routers at the moment (hoping to fix this soon): my Qwest modem works as a router but I also have a Linksys router connected to it. The only phone jack is in her room so I have no way of stopping her from plugging her computer straight into the modem and/or router. I've configured the wireless so that she would be unable to access the, wirelessly but I'd like to know how to prevent her accessing the internet when she plugs her computer directly into either component.
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Apr 11, 2011how the address stops at 31 in the second octet. I'm not even completely sure how it starts at 16 for the first address (172.16.0.0). are we dealing with subnets?
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Dec 16, 2012How to block a mac address from my home network?
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May 10, 2011what would be the easiest way of blocking a mac address from LAN not wireless, the router is Linksys E2000 and the reason isnt important, just that i want to do it, i have full access to router
View 7 Replies View RelatedBlock Iphone / Devices From Getting IP Address From DHCP?
Feb 23, 2012 I've came across IP address that aren't enough for some users in the company. The IP addresses are more than enough to cater to the user's notebook or PC. However, some users does not know that there are actually limits to the IP we have, so quite a number of them actually uses their mobile / pads to tap the company's wireless.
I was wondering if i could restrict that particular user from tapping onto the network. I know it sounds a bit impossible because DHCP doesnt have that smart function to block whoever we sees deemed as a "nuisance".
D-Link DIR-655 :: Need To Block Certain IP Address To Be Accessed By All Computers
Dec 3, 2011Bought DIR-655 from Amazon. Rev. B. Come with 2.00NA firmware. Updated to latest one, and there are a lot of problems, to most of them, I was not able find any solution. Here they start:
1. WIFI SPEED PROBLEMS.No matter what speed, parameters, channel, mode, etc I select, router keeps working on 20mhz channel width. So I never get speeds above 65 mbit. In absolutely same conditions, my DIR-300 B1 (with DD-WRT firmware) gives me stable 150mbit. SO I KINDLY ASK, MAYBE THERE IS A WAY TO FORCE "40 MHZ ONLY" OPTION?
2. PASSWORD PROBLEMS.Router came with no admin password, I enter new password, hit "update" it says - wait 20 sec, after that, login page is displayed, but, new pasword does not works! since it asks again for empty password!
3. FILTERING PROBLEMS.I need to block certain IP address to be accesed by all my computers. Say this is 111.111.111.111 . So I added inbound filter rule, to block access to that IP. It does not works - IP is still accesible.
4. MORE FILTERING PROBLEMS.Since above mentioned method does not works, I have to use "ACCESS CONTROL" feature. It does works, but it causes another problem, with access control enabled, all webpages with form submit stop to work. For example, if I'll have that feature enabled, when I press "post" on this webpage, it instantly will go to "this page cannot be displayed".
I bought this router solely for one purpose - I was happy with speed of my DIR-300, but I needed gigabit for my computers. So I thought, instead of buying separate switch, I'd better buy a router with gigabit. I was suggested to get TP-LINK 1043, since it's quite popular, alternate firmwares available and so on, but I refused to buy it, since I thought that some chinese company does not worth my attention. So I bought this D-Link (for almost 2x price of TP-Link) and having huge problems as you can see.
D-Link DIR-655 :: Access Control - Block All Computers Instead Of Specified MAC Address
Aug 8, 2012I want to do what I thought would have been a simple enough task - block my kids phone/computer after certain hours. Instead of blocking the specified MAC address(es), all my computers does not have internet access. As soon as I disable the policy, internet access is on again. Here's what I did:
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Linksys Wireless Router :: Block An IP Address With WRVS4400N?
Nov 8, 2009I've been keeping an eye on my IPS report tab lately and have been watching a large number of ICMP_SMURF and DOS attacks originating from chinese ip address's. I know I can probably block the offending ip's through the ip based acl tab in the firewall settings, but I'm kind of a newbie how I can block certain ip's from touching my router?
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Jul 8, 2011I have a WAG160Nv2 and I want to block specific external ip addresses from trying to get at our server that uses the WAG160Nv2 as an internet gateway. It's not immediately obvious if this can be done from looking through the config pages.
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Apr 2, 2013So if the PPTP server is enabled, and "Block MAC address not on the list" is enabled under the DHCP settings, will the PPTP client get an IP address?Similarly, if the PPTP server is enabled and the range of IP addresses configured on the PPTP server screen is outside the IP range of the router due to a subnet mask (like 255.255.225.248 for example), will the IP still be assigned to the PPTP client? If assigned, will that IP have any connectivity to the LAN?
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Oct 14, 2012I just purchased an ASA 5555 and started to configure. I was successful in natting all the IPs that are on the same subnet as the ASA eth0. I could not get the nat working for the 2nd address block.
Ex:
interface GigabitEthernet0/0
nameif outside
security-level 0
ip address 192.168.1.33 255.255.255.224
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Cisco Switching/Routing :: How To Block Single Mac Address In 3550 Switch
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View 24 Replies View RelatedProtocols / Routing :: Partition Departmental IP Network Address Block To Create Staff / Student Subnet?
Sep 28, 2011partition the departmental IP network address block to create a staff and a student subnet. Each of these will be identified by its own network address and netmask. It is university policy that you must be economical with the IP addresses. That is, the subnets must be as small as possible, but they must be large enough to accommodate the maximum number of hosts you were given. Also, it is university policy that the respective gateway router to the outside world should always be given the highest possible host IP address in the subnet. The student subnet should have a higher IP network address than the staff subnet. The network must be able to support up to 60 machines on the staff subnet (not counting the router) and up to 120 machines on the student subnet (also not counting the router).
IP address/netmask
University network address127.158.128.0
University network mask255.255.192.0
University internet gateway IP address127.158.191.254
Department network mask255.255.254.0
Department router address127.158.129.254
Suppose that the network address of the departmental network is 127.158.128.0 (calculated by AND between Dep network mask and Dep router address)I know that 60 machines would use 6 bits for the staff subnet.the netmask of staff would be 255.255.255.192.how can I figure out the the IP network address of the staff subnet.I have worked out the range for the staff subnetwork.
127.158.128.0 - 127.158.128.63
127.158.128.1 = Gateway address
127.158.128.63 = Broadcast address
Now how can I calculate the IP network address of the staff subnet?
Linksys Wireless Router :: EA4500 - Block Specific Site Based On Keywords In Webpage Address?
Apr 2, 2013I have an EA4500. I am trying to block a specific site based on keywords in the webpage address. how to get the EA4500 to block sites with based on keywords.
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Aug 5, 2011when i was on the computer last night, i noticed someone else's address at the upper right hand corner nest to "sign in". The person's address was Jaydogwalker45@yahoo.com. I also noticed a green circle next to the address, so i clicked it and i had the option of signing him out, so i did.
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