Cisco Security :: C3800 / Filter Traffic By Mac Address?
Jan 23, 2011
Is it possible to configure cisco router like C3800 or catalyst switches like C4500 or C2960 to filter traffic based on allowable mac addresses only? I would like only to allow those devices that belongs to the domain, meaning if a user connects a computer or any devices that concerns network which I have not allowed the mac addresses, it will be denied access to the network. However, any of the allowable devices could able to use any port of the switch, meaning I dont want to associate an allowable Mac Address to a physical port on the switch.
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Nov 15, 2011
How does a firewall block or filter traffic on a specific port or IP address?
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Dec 19, 2012
We want to filter IP traffic by MAC address on Catalyst 4500. Since we are using bonding (active-backup mode) we need those mac addresses appear on different ports. Below are solutions that we have tried: ACL but it does not work since mac acls only match non ip traffic (We CAN NOT use ip acl). Use a static mac address-table entry to ALLOW specific mac addresses. It does not work either since the same MAC address needs to be seen on a different port. Catalyst 4500 does not support auto-learn option (as e.g. Nexus 5000).
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Jul 31, 2011
I have a Linksys WRT54G router.I am trying to set up my internet connection so only my approved MAC Addresses can connect.I set everything up. I purposely excluded my laptop from the list to see if I did it right and I guess I didn't because my laptop is still able to connect to my network.
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Apr 11, 2011
why I would be getting traffic on my outside interface that has a destination address which is not my assigned outside address? I recently set up my ASA 5505 on the network and gave it an available outside address of say 192.x.x.250 on interface vlan 100. When I assign vlan 100 to e0/0 and bring the port up, I start seeing lots of traffic pour into the ASDM Syslog with various destinations belonging to my subnet but that are not actually destined for my specific outside address of 192.x.x.250.They are showing a destination of say 192.x.x.85 or 192.x.x.29.
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May 29, 2013
Most of our VPN connections are done with our Cisco 3030 and the internet goes out the ASA. We are able to filter all web traffic by doing a a span port for web traffic.
When we move VPN connections to the ASA we will loose the ability to span web traffic becuase its coming in and going out the same interface on the ASA. We will loose the ability to filter web traffic when this happens.
How we can filter web traffic on VPN connections on the ASA. We are using websense. I know there is some integration that can be done with the ASA and websense but it doesn't have all the capabilities as doing a span port for websense to monitor.
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Feb 6, 2013
I've got a PIX running 7.2(4) with its outside interface on the Internet. The only thing this PIX is doing is acting as the endpoint for an IPSEC LAN-to-LAN tunnel with an Internet-connected ASA on another network.
I'd like to filter inbound Internet traffic to this PIX so that only the designated ASA can attempt to establish an IPSEC connection -- in other words, I want to prevent any other device on the Internet from even being able to attempt to establish an IPSEC connection to the PIX. As far as I know (and have seen), this can't be done with an access-list on the outside interface, since that access-list doesn't apply to traffic to the PIX itself.
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Mar 20, 2012
Is it possible to filter remote access VPN traffic on a PIX 501 (like you can on an ASA?)
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Sep 20, 2012
I have a site to site VPN setup between a 5510 and 5505. All traffic is sent ovet the VPN from the remote site to the home office. Everything is working fine but the remote site "www" traffic is not going to the Barracuda. ISP -> CISCO ASA -> Barracuda -> Internal Switch.The Barracuda is setup "inline" with the internal network.
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Jun 28, 2011
When I try to configure the Botnet Traffic filter with the commad "dynamic-filter use database" through the ASDM I get the following error message.
[ERROR] dynamic-filter use-database Dynamic Filter: New data file not terminated with newline
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Feb 23, 2013
We have a lot of IPX traffic flowing through a switched network and we are being asked to filter it from a network standpoint. At one point they were using IPX in their network, but no longer need to, so they still have a lot of machines spewing out IPX traffic. We have removed the IPX routing commands from our distribution switches, (Cisco 6500), but after running a short 10 minute Wireshark capture I'm still getting a good bit of IPX traffic from a lot of different devices.
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Apr 9, 2013
I have a ASA 5585 and a Nexus 5596, and i need a sugestion to configure this cenário:
My users in the Vlan 10 need access on the network in the Vlan 20, but this traffic must be filtered for firewall. In the firewall a received a trunk port for Nexus 5596, and i created subinterfaces to receive the Vlans for this trunk.
The gateway for my users is the address for the ASA subinterfaces.
What i do to filter the traffic between the Vlans?
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Jan 31, 2013
Using ACS 5.2, under Network Resources>Network Devices and AAA Clients>, I can only filter by:
Name
NDG:Location
NDG:Device Type
Description
How can I find a device by its IP Address? or how can I enable this option?
On this link:[URL] I read the following: ''Network Device Filters—Based on the AAA client that processes the request. A network device can be identified by its IP address, by the device name that is defined in the network device repository, or by the NDG'.....
How could I do this on my ACS server?
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Oct 16, 2012
I am looking for recommendations on a device to put at the forefront of our network, mainly for web content filtering. Our network is currently setup as this:We have two Internet providers. One for each network that are physically separate except a a Cisco 3560 which is used for failover. In the event one ISP goes down, one network can use the others ISP, however, it has no access to the other network beyond that switch.Currently, each network has a web content filter (SmartFilter) server which is going end of life in a year. We would like to replace each server with a single box at the front of the network for filtering. Other bonuses would be things such as bandwidth control, virus protection, etc.Perhaps the most important thing is to make sure our ISP bandwidth download speed does not get hampered by the device we choose to put at the front. We have 50mb download on one and 30mb on the other. If the device throttles the download at 10mb then it's useless to us.
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Nov 16, 2011
Can the SRP547W be configured to allow traffic on port 25 from an external ip range to an internal address?
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Mar 18, 2013
Im currently doing a project, and building a machine/ bastion host with DHCP and a content filter.Its running XP. Any recommendations for the content filter that will run on XP and is also free and popular?
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Dec 18, 2011
I'm decommissioning my SonicWall PRO 3060 and upgrading to an ASA5550 (we're increasing our WAN link speed to 1Gig and need the 5550). In any case, I want to copy over the configuration from the PRO to the ASA. I have everything documented and I've started doing the changeover, but in looking at some other network diagrams on the net I'm seeing router symbols between the LAN switches and the ASA and I'm beginning to worry that I might need routers to do this which, of course, would increase cost quite a bit.
So my question is this: If I have a core switch carved into multiple VLANs and I connect each VLAN to a port on the ASA, will I be able to route and filter traffic from VLAN to VLAN through the ASA? If so how, in general, is this accomplished (I'm betting ACLs). I think that the ASA will be able to do this easily, but I just want to be sure before I get too far into the configuration of this unit,.
ASA
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
GigE0/0 GigE0/1 GigE0/2 GigE0/3 GigE1/0 GigE1/1 GigE1/2 GigE1/3
| | | | | | | |
| | | | | | | |
WAN BackupWAN VLAN400 VLAN500 VLAN600 VLAN700
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May 25, 2011
I am having a setup with a 2851 router & websense url filtering server where I need to forward the traffic to websense server for all the internet requests. The http traffic is getting filtered properly, but the https traffic is not getting filtered. The two commands I ahev given for http & http are as follows: ip inspect name test http urlfilter ip inspect name test https.
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Jun 29, 2012
I have upgraded to the new RV042G to take advantage of the gigabit Ethernet speeds and to prepare for when our ISP upgrades our bandwidth. I currently use the RV042 with Protect Link enabled to filter out various categories from our network traffic. I noticed that this feature is not included with the RV042G.
Is this something Cisco will decide to add back in later? In the meantime, how to block content on the network? The basic URL and keyword filter will not meet our needs, since it is much easier to let a service such as Trend Micro manage what is blocked in the categories they offer.
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Mar 3, 2013
I am using an ASA 5510 firewall in routed mode.How can I filter incoming traffic by mac address on the AS 5510 ? I have already setup a static access rule for rdp users on the outside to access a terminal server on the inside.Now, i would like to further limit access from specific computers only.
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Sep 17, 2011
Im using my upstairs neighbors wifi with permission. It has no protection whatsoever but recently i havent been able to use it anymore, and they both just went on vacation yesterday. Their dad was there for a day or two before they all left, my assumption is he thought i didnt have permission and did something to prevent me from connecting without mentioning it before they left.Its full bars (its directly above me) but the router almost instantly doesn't respond when i try to connect. Did he mac filter my wireless adapters adress? I tried changing my mac address on my wireless adapter (aka, desktop, as it doesn't have a nic) but Tmac cant change it successfully. Tmac is able to change my laptops mac though, but even after doing so i still cant connect to the network.
Other issue - right now im using a crappy 2 bar connection called ddrtvap on my laptop. The laptop sitting right where my wireless adapter for the desktop would be and it connects fine, but my desktop cant connect to this network (it connects to the network, but no internet) while the laptop does just fine. Windows repair is super usefull as it tells me something is wrong with my adapters settings but gives no clue as to what.
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Jan 22, 2012
I found anod secruity network filter driver for D-Link router to install on my pc , I don't use d-link router so it shouldn't be there, and also someone around my area is using my wireless internet connection, this how they must of got in. Now should this be deleted .
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Jun 22, 2012
I have couple C2960G and C3750. Is there any way to filter (on ingress port) type of traffic? I would like to allow IP only, and discard (i.e.) IPX, or other garbage, that any device can produce.I have tried to find something about this, but only thing I have found is feature : protocol filter, which doesn't seems to be working on my hardware.
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Feb 5, 2013
We have a wifi router RV220W and we need to filter the mac address. The problem is that the number of the "allowed" devices is around 50 (not all connected at the same time), but the maximum number of mac address which can be listed in this router for each VLAN is 20, so for the moment we set 3 VLAN, each one with a different mac adderss list. This is very awkward because the area to be covered by the wifi network is large and we need repeaters, but having 3 VLAN we should put 3 repeaters for each point. Is there any way to configure this router in order to have a single VLAN but with a mac address filter list of 3 x 20 mac address?
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Apr 12, 2012
I have gone through the data sheet of WAP4410N,bu have got nothing about the scalability of MAC address filter on WAP4410N?
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Oct 7, 2012
i need to add a lot of mac addresses in mac addr filter table. many routers do not allow me to add a note for each mac address. that makes management a bit difficult.
eg.
field 1, field 2, enable
xx:xx:xx:xx:xx:xx , peter pc, y
xx:xx:xx:xx:xx:xx, mary pc, n
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Jul 4, 2012
I installed the 2.06NA on my DIR-655 router and now I'm having problems adding mac addresses to the network filter. The message is "Invalid MAC address". Of course, it doesn't tell me which entry is invalid and I have a number of them. After further checking.. I noticed that one of the MAC addresses is indeed invalid and when I remove it I still get the error message?
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Dec 29, 2009
I had no problem running both 2.4 and 5.0 Bandwidth. With WiFi password and without. It does it's job. The 2.4Ghz Range Plus works. I have set up the router on the 2nd floor at the highest it can go. And everyone get's full bars all over the house. I even get 4-5 bars outside in my car on my phone.
The only issue I have with this thing is a damn new netbook I got for Christmas with a Mac Address starting with 0C-EE-E6-XX-XX-XX. The Router finds the Mac Address invalid. In which I can come to understand cause seeing a Mac Address starting like that is completely new to me. Every Mac Address I have, started with 00 except the netbook. So now, I spent days trying to find firmware updates, patches, anything! I even attempted to spoof the Mac Address on the netbook but Microsoft has a bug on Windows 7. (I have the Starter Edition that came with the netbook)
Windows 7 Mac Spoofing works with WIRED Connection. But it does not work with WIRELESS Connection. I used 3rd Party Tools: SMAC and etc... I attempted Registry Edits, I changed even the value key to the "Orginal Mac Address" and it just wont change [New Strings/Network Address Edits included]. I have been banging my head about this for a week now. The Internets has many answers but they did not work. So Spoofing the Mac Address is out of the question. Until Microsoft fixes this bug.
Anyway: Did D-Link release any sort of beta update/driver/firmware or anything to resolve this at all? Is there a modded firmware to force the Router to take this stupid paradox of a Mac Address?
Currently: I have the Router's WiFi Password-ed with Default Factory Settings
{Hardware Version: B1
Firmware Version: 2.02NA}.
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Aug 21, 2012
The wireless client can't get the DHCP address when I enable the On-MAC-Filter-failure, MAC Filtering and Web Auth. Client can get the DHCP address when I only enable the Web Auth in the same WLAN SSID. The WiSM verion is v7.0.235.0. [code]
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Apr 6, 2011
I tried to configure my wifi router recently to secure my internet connection. I wanted to add a MAC adress filter, but I had to leave before I could enter them all. I thought that I wouldn't have to enter my own MAC adress since I'm directly connected to the router with a wire, but it looks like I should have entered my MAC adress, because now I can't get access to my router by typing the IP adress, as usual. I tried to reset it, but it doesn't work.
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Jul 11, 2011
I want to add more than 40 mac address filter into my WRT54GL with firm version V4.30.7 but the form to enter the mac address list just limited to 40 mac address register. How do I can add more than 40 mac address list in my WRT54GL ? perhaps we can add the list into WRT54GL like XML file or somehow that can make me add more than 40 mac address register list.
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Apr 10, 2011
Using Cisco ASA5510 Security Plus (Post May 2010) with 8.2(1)
I was trying to limit the number of internet IP Address that can initiate Remote Access VPN connection to the firewall. I have plan to only allow internet IP Address from few ISPs for control.
However, blocking AHP, ESP, ISAKMP, NON500-ISAKMP, and IPSec Over TCP Port Assigned in the firewall outside interface doesn't work. But it works by putting the ACL in the router before the firewall. It seems that the firewall have a "hidden" process VPN first before user entered ACL (or explicit rule), similar to Checkpoint FW's implied rule. How to get around it?
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Nov 26, 2011
I have noticed that changes in MAC address filter list are applied only after reboot of router. It is inconvenient.
Router Linksys E4200
Firmware Version: 1.0.03
Operation system on client computer is Windows 7.Can it be resolved in the next version of firmware?
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