With the help of a PIX501 to secure and share an internet connection by cable

Hi all

I bought a PIX501 to secure my home cable modem connection and share it around my house. The PIX will act as a DHCP client (my ISP uses dynamic IP addressing) and use nat and DHCP break with my small number of inside customers.

The default setting (set using the set up of PIX) seems ok - but I did a little "do-it-yourself" after some negative PIX customers I've read here in the United Kingdom.

Specifically, I: -.

-A refused requests incoming icmp (to make the "invisible" PIX to the outside world)

-Created an access list to allow answers to my outgoing ping (something every geek network must be able to do)

-The value "string fragment 1 outside" to drop incoming fragmented packets

-Limit the number of connections to 200 and embroyonic at 50

-Activated floodguard (although I don't think this should be necessary on such a lightly loaded network)

-Compatible console logging so I have at least a bit of history of all attacks

-Reduced some of the delays of the connection of their default values

As I have a relatively new to this kind of thing anyone have specific advice or tips for a pix used this way?

Thanks in advance,

Andrew.

When you work with ICMP, remember that [icmp] command to assign ICMP messages for the pix as the host, while the [access-list] command is used to assign ICMP messages that pass through the Pix.

If you are using IPSec tunnels through the Pix, you can consider letting in string fragment of 2 sizes. IPSec creates broad enough to cause a lot of packets to be fragmented. Path MTU discovery would prevent, but many networks prevent incoming requests that allow the discovery to work. For this same reason, you can also consider allowing the Pix to get unreachable inside your host name if you the Pix end VPN tunnels. [icmp outside any unreachable towing]

Floodguard is enabled by default and does not need to be enabled. It should not be necessary on a little loaded network, but it would be necessary at the time of a DoS attack if you are Pix does authentication "uauth" of traffic entering or leaving the network.

If you are interested, the Pix can authenticate users inside before allowing the traffic leaving using RADIUS. This is useful in situations like a web server inside is attacked from outside. By the application of authentication for other traffic to leave for offending guests options are very limited. A timeout is used to trigger authentication again after some time. The [floodguard] is used to protect this feature "uauth' of the Pix.

The Pix has signatures VERY BASIC integrated IDS that you can activate by using the set of commands [assessment of intellectual property].

Enable SSH for authentication and encryption by generating an RSA key and saving it to Flash. [AC product key 1024 rsa] and [ca save all] disable telnet by removing all orders [telnet] and replace them with [ssh]. [http] should also be limited as much as possible for the administration.

Tags: Cisco Security

Similar Questions

  • With the help of Yosemite 10.10.5 and safari will not leave for me to restart. Have you tried all the option force quit I know? Any suggestions?

    I can't open or close safari when I try to quit he said its opening, but when I try to use it - it is not opening or answer. Safari is not rich in the dock as it should be when opened can not restart normally as safari is open. Force quit won't go beyond that. I'm stuck. Help!

    If forced to leave in the Apple menu doesn't do nothing I guess you will have to hard reboot: press and hold the power switch up to the farm of Mac down, gives him a minute or two for the disc to spin down and then starts normally with the power button.

    Do you think day as Backup just in case the problem is a sign of something bigger than just a glitch in Safari?

  • Security to share an internet connection by power line

    I changed my wireless router to wired home network via the electric lines of the House. How secure is it? The network administrator sees my internet traffic?

    The reason why I ask this is that my Bank Web site would not show me my statement. When I called the Bank, they reported that there was no problem.

    I can't find information on the safety of the power line networking on the internet.

    Any guidance or help would be appreciated.

    Lyonhair

    you use an Extender ethernet via the sockets in your home?

    This threshold has to go through a router, it is "too safe" because it is the same network. Power line offers no extra or any security less security, just another method to connect to the same router.

  • Is it possible to set up the fax on (HP 5610 all in one) for an internet connection by cable?

    I am using Windows XP Pro. 32-bit.

    I am trying to configure the fax machine part. I don't have a wired connection only Wired internet access.

    I've never had the machine connected to the internet before fax.

    I'd appreciate any help or information. Thank you!

    {Information}

    Check the linked document below for more information on Fax over VOIP

    http://support.HP.com/us-en/document/c00302247

  • With the help of transmitter USB for keyboard and wireless mouse 3000 in Vista

    a friend already has the Wireless Mobile Mouse 3000

    and just purchased the Wireless Keyboard 3000 .

    They both work w / USB 2.4 GHz transceivers, and they do not work OK using both of the receivers that accompanies the individual purchases.

    I was wondering if it is possible to use a single USB transceiver for both devices instead of two... hoped that this would be the case because they are the two series "3000" operating in the same band.

    Some hoped it would all just automatically connect, but no luck.  I can force it to use a two-way radio?

    Thanks for any help / suggestions

    * original title - use Transceiver even for (2.4 GHz) wireless KB & mouse that were purchased separately? *

    Hi moonstruck67,

    We cannot have the same transmitter/receiver for two wireless devices because it is not supported.

    You need to do the same with wireless Bluetooth technology.

    However, if you want to force the installation, try the following steps:

    i. Click Start

    II. Type in devices and printers

    III. right-click on the transmitter/receiver

    IV. If you have the opportunity to connect or sweeping, try the option and check if that helps.

    Link, please refer to:http://www.microsoft.com/hardware/mouseandkeyboard/features/bluetooth.mspx

    With regard to:

    Samhrutha G S - Microsoft technical support.

    Visit ourMicrosoft answers feedback Forum and let us know what you think.

  • With the help of Windows Vista Edition family and unable to connect to the Netgear router.

    No matter what patches I try, I still, I get a message error "settings saved on this computer for the network do not match the requirements of the network. Two other latops under Xp and Windows 7 connect perfectly.  The user called Geeksquad who told him it was the router. Replaced the router and the same issue. This default laptopp local only access point. Fix regedit for broadcast and Fixit file downloaded here have not solved the problem. Have you tried to push the direct connection button on the router, change the network connections settings... everything. Nothing works. Help, please! The user of this laptop is uber frustrated. I don't know what else to do.

    Geek Squad - use if you do not want necessarily fixed it - but you like overspending for no reason.

    Sounds like a bad driver/software.

    What is the wireless network device in the system in question (I hope that something like Intel...?)

    Is the latest software and drivers from the manufacturer of the device (don't not relying on Microsoft)?

    May need to remove all network components, reset it and install the latest drivers - and if you think Geek Squad would do that...  They could - if you get a child who loves really networking of their own things at home - but the odds are against it.

  • With the help of test even contained main and test-out option

    First Captivate doesn't let me use the same test in the test-out section and in the main content section. I tried to rename the test 9 Captivate and download the renowned test but CP said that I had already downloaded the test. How can I use the same test in the two sections?

    Hi Helen,

    We are aware of the issue of Cp and to work fixing it. At the same time, as a work-around, you can publish your project on computer and the first browser upload. Then download the same file again, like any other module. After that, you can add a Test module and a module in the "content" section.

    Hope this will help you.

    Kind regards

    RUCHI Roulin

  • With the help of a mixed environment Winsows and Mac

    I have a creative cloud subscription, and I use it on a MacPro and MacBook Pro. I want to use only hearing or Indesign on a Windows 8.1 system, since this system has several 4K screens. Is that possible without turning off all the components of the CC on one of the Macs and can enable CC on one Mac once again when I finished on the Windows system? In other words, is the CC license a floating license that records using active CC on systems?

    Yes.  You should be able to connect on a system and use no matter what you prefer applications.  You can be signed in on 2 systems simultaneously, with an option to reset all of the activations if you need to connect to a third-party system do not have access to others for now.

  • With the help of professionals to win 7 and win xp virtual my cahged screen. How to return to the original screen?

    When I started my screen today using win 7 professional and win xp virtual mode my screen changed colors and icons display in different colors. How can I change the original settings screen?

    Hello

    Thank you for contacting Microsoft Community.

    Go to control panel-> display control-> in the left pane, click screen resolution.  Now, Act resolution and change to a lower value, click on apply. Yet once, after a few seconds, change back to the normal resolution / by default, click on apply. It will be corrected.

  • With the help of APEX_JSON translated by JavaScript and escape the quotes

    I am currently generation JSON using the APEX_JSON package.  It works fine, but I got out the JavaScript code on the loading of the page and can not find a way to escape the double quotes.

    function drawChart() {
    
    
            var jsonData = &P9_JSON.;
    
    
            var data = google.visualization.DataTable(jsonData);
    
    
            var options = {
              title: 'Test Chart',
              pieSliceText: 'value'
            };
    
    
            var chart = new google.visualization.PieChart(document.getElementById('piechart'));
    
    
            chart.draw(data, options);
          }
    

    I'm getting errors because "is replaced by & quot;" in the javascript code generated.  Any ideas how to replace these?  I tried to use to replace them, but it doesn't seem to work...

    Thank you!

    Hi LSDev

    Replace this line--> var jsonData = & P9_JSON. ;

    To--> var jsonData = & P9_JSON! RAW. ;

    This work for me...

    Best regards

    Eduardo

  • With the help of a button to load and unload the external SWF in AS3?

    How can I use a button to load and unload a sequence of external SWF files, as a Next button and previous?

    I don't know if it will work because apparently you are trying to load a swf AS1/2, but try

    change the line to be...

    _swfTempClip = MovieClip (event.target.content);

    If this does not work, then you will need to create _swfTempClip as a new MovieClip and add the event.target.content to this MovieClip using addChild().

  • With the help of Photoshop CS5 64-bit and use raw images from Canon 6 d.    What I do to upgrade or is there a fix option?

    ISSA

    Read these two pages of Adobe's Web:

    Adobe Camera Raw Photoshop Lightroom compatibility troubleshooting

    Update information for older versions of Adobe Photoshop

    Upgrade to PS CC is only $9.99 per month!

  • With the help of pst on kindle fire and cannot find the drawing selection tool Freehand?

    It is not available or am I just not see?

    Please see image attached:

    Thank you!

  • I'd like to edit a PDF secure document did not change the text, or the layout at all I would do is highlight the text.  How can I do this?  With the help of Adobe Acrobat DC 15.9.20077.160923

    I'd like to edit a PDF secure document did not change the text, or the layout at all I would do is highlight the text.  How can I do this?  With the help of Adobe Acrobat DC 15.9.20077.160923

    You know the password? Otherwise, the security policy does not allow adding comments in the file, then there is nothing you can do about it.

  • With the help of an operating system older Compaq is professional Windows. Internet Explorer connected very slowly. .

    With the help of an operating system older Compaq is professional Windows. Internet Explorer connected very slowly. SO I've reworded in safe mode with network and IE has worked very well. I installed Mozilla Firefox and then restarted in normal mode. Then Internet explorer would not connect. How to diagnose in safe mode. What does safe mode or safe mode with network do to help diagnose? Can someone help me solve this problem? Any help would be appreciated thanks in advance.

    Hi, Raymond J,.

    ·         Did you do changes on the computer before the show?

    ·         You get the error message?

    ·         What type of internet connection do you use?

    ·         What security software do you use?

    Follow these methods.

    Method 1: As the problem does not persist in SafeMode with network, perform a clean boot to see if there is a software conflict as the clean boot helps eliminate software conflicts.

    Note: After completing the steps in the clean boot troubleshooting, follow the section How to configure Windows to use a Normal startup state of the link to return the computer to a Normal startupmode.

    After the clean boot used to resolve the problem, you can follow these steps to configure Windows XP to start normally.

    (a) click Start, run.

    (b) type msconfigand click OK.

    (c) the System Configuration Utility dialog box appears.

    (d) click the general tab, click Normal startup - load all services and device drivers and then click OK.

    (e) when you are prompted, click restart to restart the computer.

    Method 2: Follow the steps in the article.

    How to troubleshoot possible causes of Internet connection problems in Windows XP

    How to reset the Protocol Internet (TCP/IP)

Maybe you are looking for

  • It is there no window or icon of a new message on my mail page?

    When you use the e-mail system, there is no way I can generate "mail". There is no window or whatever it is to choose to generate a new message. I have done everything I know and tried to find hidden somewhere on the page without success... any help

  • Printer officejet HP 6830: print envelope on all office hp6830

    How to print an envelope on an officejet printer model 6830 using an iMac 10.11 system.     Correction, I'm now up to system 10.11

  • Satellite L300-13s: issue of WiFi Draft N

    Hello I would like to know why this http://www.amazon.co.uk/Belkin-N-Wir...0490986&sr=1-7 seems to be more expensive than everywhere http://www.amazon.co.uk/Belkin-F5D80...0491017&sr=1-6 But I thought that N1 was better? or is this model N express a

  • USB port

    I have a HP Pavilion p7 - 1298c and I can't find the usb port.

  • USB - MP3 and Cam do not work on my Satellite A100-507

    I have problems with USB, 10 days ago everything was ok, but now does not work! I'm trying to connect my mp3 or dig.camera but it says it's problem, as there is no good driver for my mp3 or cam. I try to reinstall the driver CD (mp3, cam), but it can