Doing this exposes your MAC address and in turn can be used to identify your computer and the user. You can change your MAC address by Technitium MAC Address Changer. You should keep in mind that changing your MAC address is by no means enough to make you completely anonymous. Check out the tools section for tips on how to do this. Filtering by MAC address wouldn't really work, anyway, because MAC addresses can be easily spoofed (changed). I can give my computer the same MAC address yours has, and as long as they're not on the same network segment, everything continues working just fine, except that if there was a way to look at the MAC address of a request in a routed. If you need it to be really secure, just get your IT department to install a VPN and route over private IP address space. Set up your IP address restrictions for those private addresses. IP address restrictions where the routing is via a host-based VPN are still secure. This tool is an easy way to find the MAC address of a local or remote computer on the network. Select the target and method and find the MAC address of a remote computer on the network. The software can not only find the MAC address of a computer. Mandatory access control (MAC) filtering or sandboxing protect vulnerable services by allowing or denying access based on the MAC address of specific devices allowed to connect to a specific network. Proxy servers or services can run on dedicated hardware devices or as software on a general-purpose machine, responding to input packets such as.
The following steps are recommendation how to protect your router. We strongly suggest to keep default firewall, it can be patched by other rules that fullfils your setup requirements. Other tweaks and configuration options to harden your router's security are described later.To learn what security methods are used by RouterOS internally, read the security article.
- 2Access to a router
- 3Router services
- 3.2RouterOS MAC-access
- 4Router interface
- 5Firewall
- 6IPv6
RouterOS version
Start by upgrading your RouterOS version. Some older releases have had certain weaknesses or vulnerabilities, that have been fixed. Keep your device up to date, to be sure it is secure. Click 'check for updates' in Winbox or Webfig, to upgrade. We suggest you to follow announcements on our security announcement blog to be informed about any new security issues.
Access to a router
Access username
Change default username admin to different name, custom name helps to protect access to your rotuer, if anybody got direct access to your router.
Warning: Use secure password and different name for your router's username.
Access password
MikroTik routers requires password configuration, we suggest to use pwgen or other password generator tool to create secure and non-repeating passwords,
Another option to set a password,
We strongly suggest to use second method or Winbox interface to apply new password for your router, just to keep it safe from other unauthorised access.
Access by IP address
Besides the fact that default firewall protects your router from unauthorized access from outer networks, it is possible to restrict username access for the specific IP address
x.x.x.x/yy - your IP or network subnet that is allowed to access your router.
Note: login to router with new credentials to check that username/password are working.
Router services
All production routers have to be administred by SSH, secured Winbox or HTTPs services. Use the latest Winbox version for secure access. Note, that in newest Winbox versions, 'Secure mode' is ON by default, and can't be turned off anymore.
RouterOS services
Most of RouterOS administrative tools are configured at
Keep only secure ones,
and also change the default port, this will immediately stop most of the random SSH bruteforce login attempts:
Additionaly each /ip service entity might be secured by allowed IP address (the address service will reply to)
RouterOS MAC-access
RouterOS has built-in options for easy management access to network devices. The particular services should be shutdown on production networks.
MAC-Telnet
Disable mac-telnet services,
MAC-Winbox
Disable mac-winbox services,
MAC-Ping
Disable mac-ping service,
Neighbor Discovery
MikroTik Neighbor discovery protocol is used to show and recognize other MikroTik routers in the network, disable neighbor discovery on all interfaces,
Bandwidth server
Bandwidth server is used to test throughput between two MikroTik routers. Disable it in production enironment.
DNS cache
Router might have DNS cache enabled, that decreases resolving time for DNS requests from clients to remote servers. In case DNS cache is not required on your router or another router is used for such purposes, disable it.
Other clients services
RouterOS might have other services enabled (they are disabled by default RouterOS configuration).MikroTik caching proxy,
MikroTik socks proxy,
MikroTik UPNP service,
MikroTik dynamic name service or ip cloud,
More Secure SSH access
RouterOS utilises stronger crypto for SSH, most newer programs use it, to turn on SSH strong crypto:
Router interface
Ethernet/SFP interfaces
It is good practice to disable all unused interfaces on your router, in order to decrease unauthorised access to your router.
- x numbers of the unused interfaces.
LCD
Some RouterBOARDs have LCD module for informational purpose, set pin or disable it.
Firewall
We strongly suggest to keep default firewall on. Here are few adjustment to make it more secure, make sure to apply the rules, when you understand what are they doing.
IPv4 firewall to a router
- work with new connections to decrease load on a router;
- create address-list for IP addresses, that are allowed to access your router;
- enable ICMP access (optionally);
- drop everything else, log=yes might be added to log packets that hit the specific rule;
IPv4 firewall for clients
- Established/related packets are added to fasttrack for faster data throughput, firewall will work with new connections only;
- drop invalid connection and log them with prefix invalid;
- drop attempts to reach not public addresses from your local network, apply address-list=not_in_internet before, bridge1 is local network interface, log attempts with !public_from_LAN;
- drop incoming packets that are not NATed, ether1 is public interface, log attempts with !NAT prefix;
- drop incoming packets from Internet, which are not public IP addresses, ether1 is public interface, log attempts with prefix !public;
- drop packets from LAN that does not have LAN IP, 192.168.88.0/24 is local network used subnet;
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IPv6
Currently IPv6 package is disabled by default. Please enable package with care, as RouterOS will not create any default firewall rules for IPv6 at the moment.
IPv6 ND
Disable IPv6 Neighbour Discovery
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IPv6 firewall to a router
- work with new packets, accept established/related packets;
- drop link-local addresses from Internet interface;
- accept access to a router from link-local addresses, accept multicast addresses for management purposes, accept your address for router access;
- drop anything else;
IPv6 firewall for clients
Enabled IPv6 puts your clients available for public networks, set proper firewall to protect your customers.
- accept established/related and work with new packets;
- drop invalid packets and put prefix for rules;
- accept ICMP packets;
- accept new connection from your clients to the Internet;
- drop everything else.
Hey Friends, Welcome to Hackingloops. Today we will learn how to bypass MAC Address Filtering on Wireless Networks. MAC Filtering or MAC Whitelist or Blacklist is an security option provided in most routers to allow or restrict particular MAC Address to allow access or restrict the Internet. If this setting is enabled then only the Machines which are allowed by MAC Filtering can use a particular Access Point. Today we will learn how to bypass MAC Filtering on Wireless Network Routers.
Most of people are aware what MAC Address is but let me brief all to revise basics. MAC Address stands for Media Access Control Address and is a unique identifier assigned to all network interfaces. With MAC filtering you can specify MAC addresses which are allowed or not allowed to connect to the network. For many occasions this might be sufficient as a security measure which makes it a little harder to use the network when the password is even known to users. So let’s start our tutorial on how to bypass MAC Address Filtering by spoofing MAC Address.
Hacking Wireless Networks bypassing MAC Address Filtering
Steps to Bypass MAC Address Filtering on Wireless Routers :
Step 1 : Consider that we have router which has MAC Filtering Configured. Say AA-BB-00-11-22 is an MAC Address which is white listed in MAC Filtering to use the Wireless Network.
Step 2 : Let’s login into our KALI Linux Machine and Put the Particular WIFI Adapter into Monitoring mode using AIRMON-ng, this can be done by typing below command at terminal:
airmon-ng start wlan0
Step 3 : Now it may happen some KALI Linux Process is showing some error. If yes then kill the process which KALI Linux is reporting having issues, it can be done using below command:
kill [pid]
Step 4 : Now launch Airodump-ng to locate the wireless network and the connected client(s) using the following command:
Using Mac Address To Get Ip
airodump-ng –c [channel] –bssid [target router MAC Address] –i wlan0mon
Airodump-ng now shows us a list of all connected clients at the bottom of the terminal. The second column lists the MAC Addresses of the connected client which we will be spoofing in order to authenticate with the wireless network.
Note: You will get above list only when someone is connected to that Wireless Network already, else you will get a empty list.
Step 5 : Now we have the MAC Address, Let’s use the MacChanger to Spoof the MAC Address :
Let’s spoof the MAC address of your wireless adapter but first we take need to take down the monitoring interface wlan0mon and the wlan0 interface in order to change the MAC address. We can do this by using the following command:
Airmon-ng stop wlan0mon
Is My Ip Address Secure
Step 6 : Now we take down the wireless interface who’s MAC address we want to spoof with the following command:
ifconfig wlan0 down
List Ip Address Software
Step 7 : Now we can use Macchanger to change the MAC address:
macchanger -m [New MAC Address] wlan0
And bring it up again:
ifconfig wlan0 up
Now that we have changed the MAC address of our wireless adapter to a white listed MAC address in the router we can try to authenticate with the network and see if we’re able to connect.
That’s it Guys! Now You are able to connect to network. Now in most cases Wireless Networks are also password protected, to hack that you can use earlier methods that i have explained in earlier tutorials.
Keep Learning!! Keep Connected!!