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 :: ASA5510 HTTPS Filtering On CSC SSM-10

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 :: 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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Cisco Firewall :: ASA 5510 / Certain HTTPS Website Timing Out

Sep 12, 2011

Running ASA 5510 with code 8.3 in it.We have our few https portal and OWA websites in HO.We access these sites from the network behind the ASA.All works perfectly fine.
 
In order to have control on internal network traffic we placed a web-filtering device (Fortigate) in transparent mode.To start with of we haven't blocked anything via new box but https portal and OWA stopped working from certain computers.At the same time other https sites were reachable from the same computer/s.We checked that website was tracable using traceroute from ASA,Fortigate and even from interal computer(from the one which it is not opening).This behaviour is random.

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Cisco Firewall :: ASA 5510 Filters URLs In HTTPS?

Nov 22, 2011

My company uses a pair of 5510 ASAs as the gateway to Internet. I once configured policy-map to filter certain webpages (facebook, twitter, ...etc) and they work fine. However nowdays those websites all support HTTPS. In the https the URL seems encrypted so can't do regex match... Is there anyway that I can still block those webpages?
 
Another two ways I can think of are

1. Block IPs (don't really want do this unless absolutely necessary)

2. Block DNS for the URL (however they can work around by setting static DNS entries)

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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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Cisco Firewall :: ASA 5510 Can't Inspect And Intercept For HTTPS Traffic

Feb 23, 2011

I want to block some social networking sites using ASA 5510-CSC-SSM, As I searched and come to know that ASA 5510 can't inspect and intercept for https traffic because it is encrypted while traversing throught the ASA. I want the ASA to make functioning for https too, not only http. Can i perform this task by updating any software on existing device?

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Cisco Firewall :: 5510 Block HTTPS Website Using CLI Or ASDM

May 17, 2013

I have purchased a Cisco ASA 5510 & want to block all social networking websites (https) either using CLI or ASDM.

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Cisco Firewall :: Asa 5510 Blocks HTTPS Access To Internet Websites

Jan 20, 2013

I have installed a new ASA5510 with CSC, and everything is working properly except the access to websites using https. All sites/access to them seem to be blocked by the ASA. I have read that this access is by default enabled and I have tried to add configuration to allow https access to the firewall but without success. [code]

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Cisco Firewall :: Asa 5510 / Unable To Launch And Access HTTPS To Run ASDM

Jan 17, 2013

i am unable to launch ASDM, and access https:// to run Asdm..everything worked find yesterday but now for some reason it wont work?When i am trying to log in with the asdm it just hangs on the connecting to device... please wait...When i am tryng access the https://... i get the ssl do you want to trust.. and i press proceed anyway and i get an error
 
Asa 5510
Device manager version 6.1
System image file is "disk0:/asa804-k8.bin
 
Also i am accessing the asa with ssh without any issues

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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 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 :: ASA 5505 Firewall To Filter HTTPS Websites?

May 28, 2012

I have a cisco asa 5505 firewall. Is it possible to block secure websites in it like [URL]? I have already tried regular expression filtering but it filters only http traffic.

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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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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 :: 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 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 :: 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 :: 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
 
The router has 12.4 (20) T4, which is supposed to be supported, the only other way of configuring is using CCP which is not compatible with SR-520's you recieve hardware not supported message's.

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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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Gateway To Internet With Firewall And Filtering?

Jun 29, 2011

I was just wondering if it possable if I could make a server with URL Filtering, Firewall, and a login system.So, when users want to use the internet they are required to login before they do. Is there a program out there?

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Jan 6, 2011

I'm trying to access my ASA 5505 by https://192.168.1.1 but I can't. I'm using Windows 7.  I already have installed ASDM and I can enter in the box by ASDM.  I am preparing to reformat my PC and I'm afraid that I won't be able to access my ASA if I do.
 
The Mozilla show the message: An error occurred during a connection to 192.168.1.1.Cannot communicate securely with peer: no common encryption algorithm(s).(Error code: ssl_error_no_cypher_overlap)

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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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Dec 21, 2011

Windows IIS server configured behind a Cisco ASA 5540 listening on port 443 currently. Access-list and static translation configured. I have been ask to redirect all port 80 calls to port 443 for this web site only at the firewall. I have suggested moving it behind our content switch with negative results. Can we do this at the firewall level? how to accomplish the redirect for a single site. 8.2.4 is current code

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Cisco Firewall :: ASA 5550 Port Forwarding For HTTPs

Nov 27, 2012

I am setting up an ASA 5550 8.4 and asdm 6.4. Last thing I am missing is to get the static nat rule done for https. Done it with asdm and cli and always end up with "error: nat unable to reserve the port". Looked around the Net so far and changed the http enable port to 4433. ASDM access is only configured for inside and mgmt port. Disabled under RA VPN all checkboxes in clientless ssl and any connection profiles since IKEv1 is used for vpn access.

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