I am using a CISCO 2621-XM Router running IOS 12.2. I am trying to block a particular mac address using. Access-list 701 deny 000b.cda7.c8f3. I tried applying the following to router's interface. Interface fastethernet 0/0. Bridge-group 1 input-address-list 701. Did not work! Access-expression input smac(701) Did not work either! Have I missed.
. Make sure you're using the right IP. Use ipconfig or a similar command to find out your Gateway address, and use that IP to access your router's page. Make sure you're connected directly. Some routers can be configured to not allow administration over Wi-Fi, or any other link not directly connected to the router.
So, make sure your connection is via a cable run directly from your computer to the router with nothing else in between. Also, disable Wi-Fi on your computer to ensure that your machine is actually using the hard-line connection to reach the router. Make sure you can reach the router. Use ping to verify connectivity to the IP address, and tracert to confirm there's nothing between you and the router. Make sure you're using the right protocol.
Some routers can be configured to only permit administration over HTTPS, and may not have an appropriate HTTP-HTTPS redirect in place. So, if doesn't work, try. Try a different browser. Some routers don't play nice with all browsers or browser extensions.
![Block Block](http://www.downloads.netgear.com/files/answer_media/images/n101675_image003.jpg)
The most universally-compatible is usually IE. RTFM Just to make sure you didn't miss something obvious, or maybe something not-so-obvious which is specific to your router model. Factory Reset If all else fails, just push the little red button and hold it for about 30 seconds. Bear in mind that this will of course erase any custom configuration you've done to the router, including administrator passwords and IP ranges. There are few reasons causing the router page to NOT to open in the browser. Since your internet is working that means there are no issues of connectivity between PC and router.
If IP address of Network card are configured to obtain automatically, Change it to fill the IP address manually. For example if the router IP is 192.168.1.1, Fill the IP address of PC's LAN as 192.168.1.x and similarly if the router IP is 192.168.0.1, fill-in the IP as 192.168.0.x.Now fill the default gateway as 192.168.1.1 or 192.168.0.1. If above method fails, try connect router directly to your PC/Laptop with a ethernet cable. And now try to open the router page. Turn off firewall.
![Router Router](/uploads/1/2/5/4/125492594/628390426.png)
I hope one of the above steps works or you can follow this link for detailed instructions.