The ping of death Protection options

Hello

I want to secure my network against ping of death attack. The IOS IDS allow the detection of this type of traffic, but it drops the ICMP packet? If I have any FW IOS, what are my options to protect my router, is this ACL enough:

access-list 101 deny icmp any any fragment

Thanks for your help and your comments!

François

Hello Francois,.

You asked "could someone confirm me that the IOS IDS is also able to prevent these reach by Ping ICMP 'abandonment' of the death packages? Response will be displayed. By configuration Cisco IOS Firewall Intrusion Detection System

http://www.Cisco.com/univercd/CC/TD/doc/product/software/ios122/122cgcr/fsecur_c/ftrafwl/scfids.htm

2154 Ping of death attack, Atomic

Triggers when an IP datagram is received with the Protocol field in the header set to 1 (ICMP), IP the last Fragment is defined, and

(Offset IP * 8) + (length of IP data) > 65535

In other words, the offset of the intellectual property (which represents the starting position of this fragment in the original packet, and which is in units of 8 bytes) and the rest of the package exceeds the maximum size of an IP packet.

Hope that helps! If Yes, please rate.

Thank you

Tags: Cisco Security

Similar Questions

  • What is the purpose to remove the Protection Option in SRM?

    Hi all

    We are setting up SRM using 5300 EMC & replication of recovery point. To make it simple on Production site, we introduced 1 TB x 2 LUNS to ESXi host and even 2 LUN is replicated for storage of DR. These LUN contains also 2 T & D VMs that don't require us to DR while that on failover.

    For failover, we created 1 protection group using three data warehouses and it shows the State of the Group of protection as 'Good', but as soon as we take the protection of 2 T & D VM status changes in Protection Group unprotected (attached are the screenshot). With this alert message that we tried to do a test switch, but it gave some error snapshot.

    My colleague said that need by moving these two VM in some other store of data that is not replicated. Can you please guide what happens if we want to keep those two VMS in the replicated data store but don't want to protect. Consequently, what is the purpose of delete protection protection SRM option group?

    Kind regards

    Khurram Shahzad

    Yes, recovery will fail when your protection is not configured. By default when you perform a failover of 'Test' that the virtual machine is recovered on a private vSwitch which has no rising physical so your VM production is safe. This means that you will not be able to do a level test of applications without some additional manual steps because the virtual machine will be able to communicate with other virtual machines recovered on this host even.

  • The request for VP protection failed. What can I do?

    Hello

    When I opened my computer appears a message indicating that the application for VP protection failed. First appeared this message, I went to see the resolution of this error, I think it was this number: 0 x 80070020, and he says that the first windows must be updated, and then if that failed there was another of the options that I have didn t have to do because I just updated my windows xp. Then after a day or two, appeared again the same message and I Don t know why. Ever since I can´t use internet explore and open can´t the window updated via internet to run windows update again. In the meantime, I used ccleaner and runned superantispyware and then tried to throw the disc difragmenter and it just take so many days to put an end to this task that I have Don t think it is normal at all. Please, is - anyone has an explanation for this? Also, I realize that it affects me the speed of my computer and some programs like Skype that takes a long time to open and doesn´t allow me to add new contacts, ex, and other negative thing is that when I open mozilla firefox, it doesn´t open with the home page that I put in place! I Don t understand whyThanks.Thanks

    Hi Anarim,

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

    ·         What is the full error message?

    Follow these methods.

    Method 1: Follow these steps:

    Step 1: Start the computer in safe mode with network and check if the problem persists.

    A description of the options to start in Windows XP Mode

    http://support.Microsoft.com/kb/315222

    Step 2: If the problem does not persist in SafeMode with network, perform a clean boot to see if there is no conflict of software like clean boot helps you eliminate software conflicts.

    How to configure Windows XP to start in a "clean boot" State

    http://support.Microsoft.com/kb/310353

    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 on restart to restart the computer.

    Method 2: Run the disk check to check for possible errors.

    How to perform disk error checking in Windows XP

    http://support.Microsoft.com/kb/315265

    Note: If bad sectors are found in the hard drive, then it could try to fix this particular sector. If you have any data on that, it can get lost.

    For reference:

    How to make a computer faster: 6 ways to speed up your PC

    Slow PC? Optimize your computer for peak performance

  • SFC/scannow stuck at 70 percent and I get the message "Windows Resource Protection could not perform the requested operation".

    Original title: whenever I run SFC/scannow I get to 70 percent and I get the message "Windows Resource Protection could not perform the requested operation". How can I fix this problem and complete the scan?

    Please answer with repair options and details on where to go to get there.

    If safe mode can't complete, it can be continuous malware (run malwarebytes) so clean, you will probably have to run a repair installation.

    Please download the free version of Malwarebytes.
    Update immediately.
    Do a full scan of the system
    Let us know the results at the end.

    http://www.Malwarebytes.org/products

  • How to disable the PING response to 8132F

    Hello

    As the title, how to disable the PING response to 8132F to protect some guys ping the switch during its use as a gateway.

    Thank you!

    Use the ip to answering icmp echo command to enable or disable the generation of

    Response to ICMP echo messages. No form of this command to prevent the

    generation of ICMP echo responses.

    Console (config) # no ip icmp echo-reply

    Page 1512 cli Guide.

    http://bit.LY/1LxWT9o

    See you soon

  • Hi, I'm Amir Ahmad Amiri 16 years of Afghanistan, my windows is Win 7 home Premium, and I have a usrer of the admin who is protected by myself.

    Hi, I'm Amir Ahmad Amiri 16 years of Afghanistan, my windows is Win 7 home Premium and I have a usrer of the admin who is protected by myself and I forgot the password of the user account of the said. The guest account is disabled and I have no CD to repair. Please help me!

    There are a lot of options built into Windows to help you out of this situation:
    • Restart the computer with your Windows repair CD, then use system restore to set Windows in a few days (only works if you have recently changed the password).
    • Log on to your account admin to spare, and then reset the password for your existing account (works only if you set up an alternative admin account).
    • Log in as administrator mode without failure, then reset the password for your existing account (the password is usually empty).
    • Insert your flash drive USB with the password key file (only works if you have taken the time to create such a key file).
    • Use the password indicator (works only if you have created a hint and if it's good enough to allow you to guess the password)
    • Check your paper files (works only if you threw down the password somewhere)
    A Windows repair CD is absolutely essential if you decide to do maintenance on your own PC. It takes only three minutes to burn a via the control panel / backup and restore. You have these options:
    • Burn it on another computer.
    • Borrow one from a friend.
    • Purchase one here: http://systemdiscs.com/

  • When I try to convert a pdf to Word, it says that the document is password protected.  What should I do?

    When I try to convert a pdf to Word, it is said the document is password protected and the Word option is gray.

    Probably, give up. But

    * If you HAVE the password you can remove it with Acrobat Pro

    * You can ask the creator of the document for a file unprotected

    Sometimes passwords are automatically added and doesn't know not, for example, some banks. There is no solution.

  • Instructions to set the master password - where is Options?

    I want to set a master password (Thunderbird on MacBook OS X Yosemite 10.10.5).)

    Instructions to begin with 'at the top of the Thunderbird window, click the Tools menu, and select Options.
    but I do not get an Options I can select (see screenshot).

    Clearly I must be misunderstanding something simple enough (I'm new to Mac after using Windows for years). Help please

    _Linux, http://KB.mozillazine.org/Menu_differences_in_Windows, _and_Mac

  • Don't want the large white area with 'options, etc.' at the bottom of page, I already at the top of the page.

    The menu bar has file, edit, view, tools, bookmark, etc., I don't need this measure up to an inch or MORE thoroughly below my tiles, they are already too closely together. Thank you.

    Looks like you got the extension new tab Tools installed. Click on the "device" in the upper right to open the options of this extension and disable Launcher in the right-hand column under Options.

  • Firefox allows the printing of files PROTECTED on my server. WHY?

    All other browsers RESPECT the fact that a PDF is password protected and does NOT allow this file to be printed. Fire Fox violates this rule, and let's users simply of pass protection and print the files. It really SUCKS! He should fix it to conform to current practices. Is this corrected?

    John, your response to:
    "Basically if the image is published it is likely to be copied in one way or another." Perhaps consider tattoo and or only provide copies low-resolution images in these pdf's.

    I will finish this issue. Anyone who wants to give you detailed perhaps advice do in your original thread

    Firefox allows the printing of files PROTECTED on my server. WHY? / issues/992183
    change Link to previous post ~ J99
    I could certainly copy an image from a pdf file posted or downloaded by browsers other than Firefox. »

    WON'T. I speak NOT of the IMAGE being copied from a screen. This, of course, can be done by anyone. What I'm talking about you, is that FIREFOX, unlike all other browsers, ALLOWS you to print a PROTECTED PDF FILE complete. This should NOT be and this issue should NOT be closed and just brushed side because Mozilla has a MAJOR BUG in their software. Your program should be corrected in order to RESPECT the protection of a file and NOT allow it to be printed in its ENTIRETY.

    NO SATISFACTORY SOLUTION HAS BEEN POSTED. FIRE FOX IS BROKEN AND NEEDS TO BE REPAIRED. PURE AND SIMPLE. DO NOT WHITE WASHING A CONCERN MOST OF YOUR USERS!
    Richard plant

  • My email on my iPad (version 8.4.1) application froze on a white page. I tried to power down and restart. I know I get emails that I can hear the ping and see numbers on the app. It has been frozen for a day and I have no way to display

    My email on my iPad 2 (IOS 8.4.1) froze last night on a blank page I was trying to send a few photos. I know I get emails that I can hear the ping and my email application shows that I have two new. I tried to put this off, then restart, but nothing changes. When I type my email application it goes to the blank page and after a few seconds goes back to my home page. I'm leaving on a trip to Europe at the moment I'm in a bit of panic. Any help will be greatly appreciated.

    You tried to close the Mail application via the taskbar of the iPad: force an app to close on your iPhone, iPad or iPod touch - Apple Support ?

  • Can't see the cover and apple pay option?

    I restored my iPhone 6s of iphone6, after that I cannot see the option pay apple in my wallet but also can not see in the portfolio and apple pay option in the settings. But when I am trying to reset as a new iPhone I see these option as well as I can add debit card or credit card to pay for apple... Can help you with this question as soon as POSSIBLE please... ?... Looking forward to your help in this matter...

    Hello

    Tap the application portfolio and then slide up and down on your screen. You should see a circle with a higher right.

    Tap here then click Next and follow the instructions.

    Please click here > http://www.apple.com/apple-pay/

    Then scroll down to: Setup is simple with portfolio.

    You will see the circle with a sign + on the right.

  • I store some sensitive information in my Notes app. The password can I protect the Notes application?

    I store sensitive information in my Notes app. The password can I protect the app?

    N ° may not be password protected.

    Do not share your password.

  • Satellite R830: How do the BIOS settings password protected?

    Hi all

    I installed a software protection against theft in my Satellite R830, but he suggested that I adjust the settings in the BIOS so that it will start only from the hard drive, and to make sure that no one else can modify it (if it is stolen), the BIOS settings are protected by Word.

    Can someone tell me how to access the BIOS at startup settings upward?

    Hello

    You can set the BIOS settings by setting the BIOS password.
    If someone would like to change the BIOS settings, the password of the BIOS would be necessary.

  • Satellite Pro M70-132: excellent WiFi connection but the pings are slow

    Hi all...
    My Satellite Pro M70-132 have problems with Wi - Fi connections (WiFi built in)... Generally, when the connection is excellent (indicator of windows), the pings are slow - very long time: 1212ms, 325ms, 645ms, 2112ms, 91ms, s 168ms... etc 'demand time limit has expired' (or sth like this).
    I have updated with the latest version of the Intel WiFi driver - it does not work...
    I installed new system - it does not work...

    Is it possible, that LAN WiFi is dead on my M70-132? How can I check before sending my 'Toshi' to the service?

    (BTW - built-in Bluetooth has been switched off...)

    I was tempted to access with several AP and also ad hoc. Every time, same results... connection strong-great but pings are slow... and often ping timeout...

    The IP address has been set manually and automatically - it does not work... too multidimensional :-(

    It's not metter WEP encryption is enabled, 'on' or 'off' and no authentication method does not change the situation with WLAN...

    Post edited by: maxgoldie

    Hello

    If the work of WLan connection and you are connected to the router so I guess everything's ok.
    Time to ping depends on not always the strength of the signal.

    If you ping other ip on the net if the time depends on the provider and type of connection.
    But if you ping your WLan router and it s very slow so it s a bit strange.

    If you think there could be something wrong with the Wlan card then you can try asking for help ASP.

Maybe you are looking for