Cisco Firewall :: ASA5505 URL Filtering / Blocking?

Jul 7, 2012

I have ASA 5505 running 7.2.4, I want to prevent users accessing some web sites such as facebook , youtube and hotmail etc.

Which ASA 5505 IOS version should I use to block web access?
 
I don't want to isntall a dedicated filtering server ( websense etc) , I just want to block web sites statically on ASA 5505 via ASDM as I only have few sites to block.
 
know if ASA 5505 can do URL filtering, and what IOS is required ?

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Cisco Firewall :: ASA5505 Use Web Filtering Feature

Nov 16, 2011

i am going to implement a ASA5505 in one of my offices. I would like to use web filtering feature on it. Will it cause any performance degradation in ASA? will it utilized more memory?

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Cisco Firewall :: ASA5505 Firewall Rule Not Blocking

Apr 1, 2013

I'm trying to troubleshoot an ASA5505.
 
The original goal was to block "Mumble/Murmur" (a voip app) traffic, which runs on TCP/UDP 64738, both inbound and outbound, except to a certain host (63.223.117.170).
 
However, when nothing I tried seemed to make a difference, just to troubleshoot, I decided to try blocking all inbound traffic.  I first disconnected ethernet port 0/0 to ensure that it was cabled correctly and the outside interface went down when I did.  That worked as expected, so I confirmed I had the right interface and it was cabled correctly.
 
I then applied a "any any deny ip" rule as the first element in the outside interface access_list, as you can see below.  However, it appears to have had no real effect and the hit count is very low (it should be astronomical).
  
show ver 
Cisco Adaptive Security Appliance Software Version 9.0(2)
Device Manager Version 7.1(2) 
Compiled on Thu 21-Feb-13 13:10 by builders
System image file is "disk0:/asa902-k8.bin"

[Code].....

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Cisco Firewall :: ASA5505 Blocking LAN Domain Queries

Dec 6, 2012

data centre hosted system with 4 servers connected to a CISCO ASA5505, everything was working fine with 4x windows server 2003 machines but since pulling 2 out and replacing them with windows server 2008 machines i get a flood of the error below and it blocks communications back to the IP listed which is the domain controller so naturally this makes the 2 new servers unusable.
 
1: they are all connected to the inside VLAN directly via the ASA's switch ports.
2: the are all in the same 255.255.255.0 subnet including the ASA inside interface
3: removing the gateway on the affected machines makes no difference the ASA continues to block it which indicates whether or not the machines use the asa as a gateway its inspecting the traffic and blocking. [code]

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Cisco Firewall :: ASA5505 - Blocking Internal Traffic Between 2 Servers

Oct 25, 2012

I have a cisco ASA5505, it runs a wide site to site VPN network and has 4 servers connected to it
 
10.50.15.4 > fileserver
10.50.15.5 > domain controller (exchange)
10.50.15.6 > terminal server
10.50.15.7 > terminal server
 
Now yesterday i removed 10.50.15.6 and replaced it with a new terminal server with the same ip address, ever since the ASA is blocking traffic between it and the domain controller (example)
 
2Oct 27 201214:51:0510600710.50.15.655978DNSDeny inbound UDP from 10.50.15.6/55978 to 10.50.15.5/53 due to DNS Query What has me baffled is the only thing different between today and yesterday is the new server is windows server 2008 and the old one was windows server 2003. The new server has the same LAN ip address as the old one to make the changeover seamless for the users.
 
why all the sudden my ASA has decided to block the traffic between those machines? all the other machines can talk to it fine just not the domain controller, and seeing that this is a terminal server naturally you can see the problem i face!
 
this router has worked flawlessly for 2 years now without any config changes and i cant work out why its blocking traffic between those 2 machines.

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Cisco Firewall :: ASA5505 Blocking Outbound IPSec VPN Client?

Jun 20, 2011

I have a XP workstation behind my ASA that can not connect to a client's network via Cisco VPN Client using IPSec...
 
In the logs it shows the translation is working on 500 but the VPN Client has the error 412, that the client is not responding.
 
Config below
 
ASA Version 8.2(1)!hostname RWFW1enable password encryptedpasswd encryptednames!interface Vlan1nameif insidesecurity-level 100ip address 192.168.1.1 255.255.255.0!interface Vlan2nameif outsidesecurity-level 0ip address x.x.x.x

[Code].....

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Cisco Firewall :: ASA5505 Blocking Port 3101 For Blackberry Server

Oct 31, 2012

I thought I had the configuration to allow bi-directional traffic for my Blackberry server.  I have a second fw with the same config and it worked on that one.  But right now, my blackberry server is down, and all the users are upset.
 
ASA Version 8.2(2)
 !
 hostname asa5505

[Code]......

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Cisco Firewall :: ASA 5505 URL Filtering Using URL Filtering Server?

Feb 7, 2012

I have come across articles mentioning that URL  Filtering can be implemented by using ASA 5505 with URL Filtering  Servers. But Websense and other Web Filtering Servers are paid ones ?  Are there any free solutions available ? What exactly is N2H2 ? The  reason is I don 't want to increase the CPU utilization of ASA by  implementing URL filtering within the device. If I have around 30 nodes  which connects to the internet via a 2Mbps line through ASA 5505 and if I  want to block around say 10 or 15 URLs , will it increase CU  utilization beyond permissible limits ? Currently the CPU Utilization is  around 10 - 15 . Here's the infrastructure setup .

------------------------------------------------------------
Nodes -->Switches-->ASA 5505-->Internet
-------------------------------------------------------------

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Cisco VPN :: ASA5505 Blocking Remote Network / Site-to-site Vpn

Jun 28, 2011

I have a site-to-site VPN already established, everything is working as it should.  I'm trying to block the remote network from accessing our network since we only need to access theirs.  I'm sure this is something very easy to implement with an ACL but I'm not sure where this rule needs to go. The VPN is on ASA 5505. 

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Cisco Firewall :: IOS Zone Based Firewall Websense URL Filtering Feature On 881G

Jul 27, 2011

I've been trying to configured Websense urlfiltering using ZFW feature on my Cisco 881G router. The router is running on IOS 15.0(1)M with Advanced IP Services. And I have confirmed it supports urlfilter feature.
 
This is what I tried to accomplish but IOS version 15.0x seems to have different command set.
-----------------------
class-map type inspect httptraffic
match protocol http
parameter-map type urlfilter param
server vendor websense 10.20.30.40
[Code]...

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Cisco Firewall :: Could URL Filtering Be Done On ASA 5505 BUN-K9

May 16, 2013

Could URL FIltering be implemented on Cisco ASA 5505-BUN-k9?i mean to block certain websites, like facebook, youtube, to block certain download files like .exe, .com .bat etc....Is there any extra license needed for this, or it could be done with the simple IOS ASA5505-bun-k9?

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Cisco Firewall :: 2811 ZBF URL Filtering

Apr 18, 2012

I try to implement the url filtering feature on a cisco 2811 router and whenever i enable the parameter map patterns the router retuns (after some time)

%Unable to compile obj regex.[code] The result is that the router blocks ALL webpages without giving a block page message.

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Cisco Firewall :: ASA 5505 URL Filtering?

Mar 7, 2011

I have a problem configuring url filtering on ASA 5505 rel 8.3.1: I have to block the web navigation to facebook and, with my configuration, it works fine.The problem is when I try to access on other sites where there are a links to facebook, I cannot see that site and not only the button of facebook.
 
regex urllist1 ".*.([Ee][Xx][Ee]|[Cc][Oo][Mm]|[Bb][Aa][Tt]) HTTP/1.[01]"
regex urllist2 ".*.([Pp][Ii][Ff]|[Vv][Bb][Ss]|[Ww][Ss][Hh]) HTTP/1.[01]"
regex urllist3 ".*.([Dd][Oo][Cc]|[Xx][Ll][Ss]|[Pp][Pp][Tt]) HTTP/1.[01]"
regex urllist4 ".*.([Zz][Ii][Pp]|[Tt][Aa][Rr]|[Tt][Gg][Zz]) HTTP/1.[01]"

[code]....

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Mar 18, 2013

One of our customers has an ASA5510 with CSC SSM-10 security module. The software version of the module is 6.6.1125.0.Is it possible to do https filtering with this module ? The customer is complaining that this is not possible...from Cisco I've read the following:

• HTTPS Filtering
– Able to allow or block HTTPS traffic.
– Supports group-based and user-based HTTPS policies.
– Includes URL blocking/URL exception list support for HTTPS domains.

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Cisco Firewall :: MAC Address Filtering In ASA 5520?

Jul 25, 2008

CAn we filter MAC address in LAN using ASA 5520 , whats the method ?

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Cisco Firewall :: ASA 5510 HTTPS Filtering Bog Down

Feb 15, 2012

I am running a Cisco ASA 5510 with Trend Micro Interscan. We have it set up to filter https except for a handful of sites. It is filtering the ones we don't want ie: facebook, and youtube. Though it is causing all other https to slow to a crawl. Therefore some sites it times out on us. What should we be looking for to change so it isn't slowing the allowed sites down?
 
Version numbers 
ASA - 8.4(3)
ASDM - 6.4(3)
Trend - 6.6.1125

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Cisco Firewall :: ASA 5550 - URL Filtering Using Web Sense?

May 10, 2013

i have Cisco ASA 5550 and i want to do URL filtering using Web sense,can i use Micorsoft Forefront TMG2010 as websense server to do that?
 
the idea is to filter the HTTP & HTTPS URLs,if the  Micorsoft Forefront TMG2010 is not suitable,refer to suitable Websense URL filtering server?

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Cisco Firewall :: Does ASA 8.3 Support MAC Address Filtering

Nov 4, 2012

Does ASA 8.3 support MAC address filtering, I want to allow a single specific laptop to login to the ASA 8.3 firewall (for management) from anywhere on the internet, I know I can do it through VPN but I want a simple MAC address access list or something......

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Cisco Firewall :: 891w - Web Filtering For IP Ranges?

Feb 24, 2011

Alright, well I have a Cisco 891w router and have just about everything up and ready to deploy. I'm primarily using Cisco CP 2.4 to provision the router with minor tweaks being done in the CLI. I want to set up a filter to allow access to roughly 20 websites for the majority of my network which is all on the same VLAN. The ip ranges are x.x.x.10 - x.x.x.169 which I have set into a Network Object group called limitac. The second group ranges at x.x.x.170 - x.x.x.199 and is called allowac. I have set up DHCP bindings for all the devices that will connect to the network but I want to set up a web filter for only the first group. I cannot seem to find anything in the Cisco CP manual or the IOS manual for setting up filtering for a range of IPs only. Primarily there are a few computers that need full access to the web while the others should only have access to the sites I set up in the filter.

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Cisco Firewall :: IOS Content Filtering On SR-520 Router

May 17, 2010

I have a Cisco SR-520 router which I am trying to configure and install the IOS content filter. I have read many of the documents on this but some of the lines do not work, from using the pages belowURL
you are supposed to enter parameter maps as follows:-
 
parameter-map type trend-global global-param-map
server trps.trendmicro.com
cache-size maximum-memory 256
cache-entry-lifetime 1
 
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Cisco Firewall :: ASA 8.4.1 EasyVpn Clients Filtering

May 3, 2011

I have big trouble with easyvpn clients access filtering on asaos 8.4.1. I have couple of remote offices with hardware clients (cisco 87x, 88x) configured as easyvpn clients to Asa. Default route in it's routing table pointing to the Virtaul-Access interface (easyvpn connection to ASA), so there is no split tunneling or any kind of nat on the clients. I have ip-telephony deployed across remote offices. This remote offices should be able to call to each other.

On the ASA i have configuration for this purpose:
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface

But as soon as I configured it, remote users obtain an ability to access Internet without any restrictions although there is couple of access-lists configured on the outside interface pointing to easyvpn clients. Then there is no same-security-traffic commands i can filter out access to internal and external resources correctly, but remote offices can't communicate with each other

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Jun 27, 2012

I know the 5510 & 5520s support the CSC-SSM module for Content Filtering (Anti-Phishing, Anti Spam, URL filtering, Anti-Spyware & Antivirus), but what about content filtering for the ASA5525-K9.The problem that I have is that I need a firewall that supports up to 1 Gbps Maximum Firewall Throughput and to support 250 users with Content Filtering described above.I'm using the following doc for sizing and came across the ASA5525-K9 for 1 Gbps, but not sure about the Content filtering: url...

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May 18, 2011

I have an FWSM running in multiple context mode running 3.2(18) code.  I have 3 urls that I would like to block so I can't justify the cost of an external URL filtering server.  I have found a way to filter individual URLs on the ASA but the same configuration does not seem to be available on the FWSM.  At least not on my code. Any way to do this other than resolving the hostnames and blocking the current IP addresses?

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Cisco Firewall :: PIX515 URL Filtering Doesn't Work

Nov 14, 2011

I have one outside interface with global IP address 1.1.1.1 and two inside.Both inside interfaces restrict and non_restrict have private IP addresses.I tried to filter some URLs on PIX515 IOS 7.2, only on restrict interface but my filter does not work.I can access prohibited URL from restrict interface. What's wrong in my URL filtering?
 
Here is my config:
 
PIX Version 7.2(2)
!
hostname pixfirewall
enable password 8Ry2YjIyt7RRXU24 encrypted
names

[code]....

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Cisco Firewall :: HTTPS Filtering In Internet Explorer With CSC-SSM-10

Jun 28, 2011

I upgraded MY ASA IOS with 8.4.2 and CSC IOS with 6.6.1125.0 .
 
Then after HTTPS filtering fine with Firefox broswer but not with IE.
 
In URL blocking window i configured Public IPs of some https web sites then URL blocking working with IE.

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Aug 20, 2011

Im notice after configure the trend micro url filtering on a Cisco 2821 high latency on Http navigation, the latency on the ping for the requests shows a 245ms latency, but if i disable this feature on the router, returns to normal navigation and decrease the latency up to 70ms.

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Cisco Firewall :: ASA 5585X URL Filtering / Unable To Support CSC Module?

Aug 22, 2011

Because ASA5585X doesn't support CSC module, how can do URL filtering on ASA5585X

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Cisco Firewall :: 2821 Router - Can't Configure URL Filtering Using Classic Way

Aug 16, 2012

I have Zone Based Firewall running on a 2821 router and would like to configure Url Filtering with Websence . IOS running on that device is c2800nm-adverterprisek9-mz.150-1.M7.bin . Once you have ZBF config you cant configure url-filtering using classic way ( ip inspect ) and this has to be done using class , policy maps .For this to to happen it is required to have match protocol http command under the class map , it wont work using the match access-group command.[code]
 
Once I put match protocol http command browsing becomes dead slow , also without using match protocol command I cant continue to configure Url Filtering . Is this a problem related to IOS where match protocol command isnt working fine . I have checked CPU utlization of Router and it was roughly near 7 percent .

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Jan 8, 2012

I am trying to get layer 7 application protocol to work in a simple test setup, I need to get this working to filter roommate traffric . Simple configuration with two interface(inside and outside). With layer application configured, everything works fine, but when applied layer 7 it does not block the web site i want... URL filter  and parameter map don't work either...
 
Cisco IOS Software, 2800 Software (C2800NM-ADVENTERPRISEK9-M), Version 12.4(24)T1, RELEASE SOFTWARE (fc3)
 
parameter-map type urlfilter URL-FILTERaudit-trail onparameter-map type regex humoronpattern [Hh][Uu][Mm][Oo][Rr][Oo][Nn][.][Cc][Oo][Mm]
parameter-map type regex LAPOSTE1pattern LAPOSTE.NET(code)

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Cisco Firewall :: URL Filtering On ASA 5510 With RegEx But Getting Unexpected Results

Feb 28, 2013

I'm trying to block access to dropbox.com on our ASA5510. I have it setup and it blocks dropbox.com just fine. But it is also blocking google.com. I can't figure out why.
 
Here's my config. When it blocks google, it blocks it with the terminated by inspection engine, reason - disconnected, dropped packet.
             
regex Block_Dropbox ".dropbox.com"
access-list URL_Filtering extended permit tcp any any eq www
access-list URL_Filtering extended permit tcp any any eq https

[Code]......

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