PIX does not allow packets loarge
I can ping with l - 992, but fail with-l 993.
Ping 172.16.17.1 with 992 bytes of data:
Reply from 172.16.17.1: bytes = 992 time = 1ms TTL = 254
Reply from 172.16.17.1: bytes = 992 time = 1ms TTL = 254
Reply from 172.16.17.1: bytes = 992 time = 1ms TTL = 254
Reply from 172.16.17.1: bytes = 992 time = 1ms TTL = 254
Ping statistics for 172.16.17.1:
Packets: Sent = 4, received = 4, lost = 0 (0% loss),
Time approximate round trip in milli-seconds:
Minimum = 1ms, Maximum = 1ms, average = 1ms
Ping 172.16.17.1 with 993 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 172.16.17.1:
Packets: Sent = 4, received = 0, lost = 4 (100% loss),
I also see that attached to the devices in the DMZ are taken excessively long time.
The MTU size on all interfaces is always the default value of 1500.
Hi Jimmysturn:
Which is likely happened here is that you have ID political attack linked to your external interface with the action 'drop' or 'reset' all packages that match the signature in the category of the attack.
Signature 2151 (large ICMP) will drop packets hit the PIX off interface or those who pass through the PIX outside interface when you ping with large packet size (+ 993 bytes):
From your post, you must have had the following policy of IDS on your PIX:
IP audit name attackpolicy attack action fall
(or
IP audit name attackpolicy action fall attack alarm
or
attack IP audit name attackpolicy raz action alarm
or both)
If you want to ping with big package, there are several things you can do:
(1) remove the policy of "attackpolicy" completely from your external interface. It will turn off all of the IDS signatures in the category of the attack.
Carefully look at this and see if it's what you want to do.
To achieve the above, issue the following command:
"no interface verification ip outside of attackpolicy"
(2) turn off the signature 2151 by running the command:
"disable signature verification ip 2151.
That would disable only the big signing of ICMP attack while leaving the other signatures of attacks in the category of GIS attack ON.
(3) set signature action to open a session (a syslog server or the internal buffer) large ICMP packets instead of dropping. Again, this should be determined carefully as option 1.
To achieve the above goal, issue the following command:
IP audit alarm action name attackpolicy attack
It will be useful.
Please indicate the position accordingly if you find it useful.
Sincerely,
Binh
Tags: Cisco Security
Similar Questions
-
PIX of VPN to Pix does not allow navigation from one end.
Hello
We went an office of a router to connect to the internet (do Nat) our Pix VNP company. Now from this office, I can go through all our corporate network, but I can't browse them from our corporate network. I read a few cisco docs and I installed WINS, still no luck.
Technicians from the isp for this office recommended disable Nat on this router (its doubly from). I have to change this Office Ip address external PIX and the default gateway to match any Ip subnet, they give me.
This change will affect our current VPN IKE and IPSEC policies and connection to that office?
Thank you
Mario Cabrejo
Network engineer
You will need to use an external (visible ip internet) on the external interface of the PIX and disable the NAT on the router. You have to re-create the tunnels they will point to a new ip address and not the router.
Hope this helps
Richard
-
Satellite L100-120: Wlan does not allow the transmission of large data packets
Satellite L100-120, Intel 3945ABG.
Router Wi - fi is 3COM OfficeConnect Wireless, same problem with Dlink DI-524.By default my wi - fi card does not allow the transmission of packets of data.
I use ping-f-l 1464 192.168.1.1 to check if it is possible to send a large package. All packages more then 600 large fail to be sent.
It is tragically wireless performance and I almost cannot use internet at all. I solved the problem partially by setting the MTU to map wi - fi at 548. Connection is now stable, although I can not yet send massive emails. Anyway, it is not a good situation to have such a low MTU value.
Everybody respected this problem?
I think you will find the solution in this announcement:
http://forums.computers.Toshiba-Europe.com/forums/thread.jspa?threadID=15101I think the secret is the update of the BIOS!
-
my iphone does not allow me to use, because it asks me to insert aSim card
I never use Sim Card in my iphoe 4 s and now my iphone does not allow me to use, because it asks me to insert aSim card then what can I do to make my iphone working properly again
< object edited by host >
You must use a sims card to set up your phone and continue to make calls. If you just want to use the Wi - Fi you can exit the sims, but you will need initially. Contact your operator for more details.
Remove or change the SIM card in your iPhone or iPad - Apple Support
-
38.0.1 updated to does not allow me to log into G-mail. I know that my user name and password, cookies are enabled and clear history information. I am able to Safari.
Thank you. I could sign G-mail in Mode safe, so I "refreshed" Firefox and that took care of him. Appreciate your quick response and helpful instructions.
-
Apple does not allow me to check the status of the guarantee from my iphone
How can I check if my iPhone 6s has a valid warranty since apple does not allow me to do?
What do you mean that they do not check it out?
You can check it out here: https://checkcoverage.apple.com
-
Can I allow an application for one person on my family share but does not allow for each other?
You can't delegate who has access and who doesn't have access to the applications. You can lock devices with age restrictions, so only items appropriate age are at their disposal. Or you can hide your list purchases. The purchased app can then be displayed when you want to share with someone else, then be hidden again once the application is downloaded on their device.
I hope this helps.
SI10
-
Keychain password does not allow me to download and publish on IProducer
I keep getting a message that my keychain does not allow me to continue with IProducer to download my book on ITune Connect.
I currently have four books in my account.
Help, please!
I tried everything that I was on demand at Apple, systems preferably, ICloud and keychain.
Any other suggestions?
Thank you
Paula
You have turned on two-factor authentication? If so, try turning it off? A bit of a nuisance, but it could allow you to go further until they fixed it.
-
Unresponsive script warning froze firefox, does not allow me to stop smoking.
nor it will let me turn it back on, no matter what to type in the address bar. in fact, firefox screen went black. Firefox does not allow me to stop or restart my computer. I even unplugged it but frozen firefox page opens again on restart. operating system is mac mavericks.
One of the methods to call Force Quit work at all? http://support.Apple.com/kb/ht3411
-
Firefox bookmarks bar does not allow me to drag-and - drop Web site icons. I went into the display and click on "bookmarks bar". bookmarks bar but her but its not allowing me to drag and drop the icon on the toolbar. I tried everything it is supposed to do, but his does not work. his frustration.
Stef. /. \
Make sure the toolbars like the toolbar 'Navigation' and the 'personal bar' are visible.
- View > toolbars
- Right click on empty toolbar space
Use the toolbar (Customize) to open the Customize and set the toolbar to display items.
- Make sure the "bookmarks toolbar items" are on the personal bar
- If "Bookmarks Toolbar items" is not on the bookmarks toolbar, then FRY it in the palette of the toolbar in the window the bookmarks toolbar Customize
- If the missing elements are in the toolbar palette then drag them from the window, customize the toolbar
- If you do not see an item on a toolbar in the toolbar palette and then click the button "Restore default" to restore the default toolbar configuration
- https://support.Mozilla.org/KB/how+to+customize+the+toolbar
- https://support.Mozilla.org/KB/back+and+forward+or+other+toolbar+items+are+missing
You can check the problems caused by a corrupt localstore.rdf file if the above didn't help.
-
my address bar does not allow me to enter information, how to access?
before that I could go directly to the address bar. Now he has a magnifying glass at the beginning of the bar and does not allow me to type in it. What should I do to be able to search in the bar of monzilla?
Sometimes a problem with Firefox can be a result of malware installed on your computer, you may not be aware of.
You can try these free programs to search for malicious software that work with your existing anti-virus software:
- Microsoft safety scanner
- MalwareBytes' Anti-Malware
- TDSSKiller - AntiRootkit utility
- Hitman Pro
- ESET Online Scanner
Microsoft Security Essentials is a good permanent antivirus for Windows 7/Vista/XP, if you do not already have one.
More information can be found in the article troubleshooting Firefox problems caused by malware .
This solve your problems? Please report to us!
_______________________________________________________________________________Hello
The reset Firefox feature can solve a lot of problems in restaurant Firefox to its factory default condition while saving your vital information.
Note: This will make you lose all the Extensions, open Web sites and preferences.To reset Firefox, perform the following steps:
- Go to Firefox > help > troubleshooting information.
- Click on the button 'Reset Firefox'.
- Firefox will close and reset. After Firefox is finished, it will display a window with the imported information. Click Finish.
- Firefox opens with all the default settings applied.
Information can be found in the article Firefox Refresh - reset the settings and Add-ons .
This solve your problems? Please report to us!
Thank you.
-
I do a fileupload page and it seems that FFv.12 does not allow for Scandinavian letters in the names of downloaded files, given that the browser gets stuck trying to communicate with the local host. Fix? This behavior differs from that of other browsers (IE, Chrome, Opera and Safari).
That are Unicode characters in the name of the file or the characters in the top 0 x 80-0xFF range?
-
I play games that allows me to send gifts to your facebook friends and when I click on send gift, a screen with the names of my friends will be displayed so that I can select the ones to send to... but since yesterday morning, the pop up screen using firefox became so weak that it allows only one line and it does not allow me scroll more than 5 times... While the IE pop-up window shows 27 lines at once, and I can scroll the following 27 and so on... I have pictures of the screen if you need...
You should be able to resize the window pop - up to enlarge.
You allow sites resize the popup window?
-
FireFox does not allow this.
Please advise on how to fix!
Much Appreicated!
Note: I have already followed and repeated the instructions as to the time the problem fixed, but obviously it is not allow me access to the home page of my choice!What page is coming as your home page now?
-
I am trying to record an mp3 file, but firefox does not allow me to save... it allows me to read the file but not download and asave to my computer. How can I activate the Firefox save MP3s on my computer?
Go to Options > Applications tab > MPEG Layer 3 audio(audio/mpeg) image search > use the "Save file" option on the menu drop down.
Maybe you are looking for
-
BearShare does not... BearShare is stopped correctly.
My operating system is Windows Vista - Home Premium... Problem event name: AppHangB1... BearShare has stopped properly... BearShare does not.
-
Original title: RST My cell phone message says RST service does not work - I does not recognize so I uninstalled Rapid Storage Technology completely and I can't restart. Startup Repair is on-screen and worked for always.
-
Original title: product key I'm having the worst luck! I spent the last 3 weeks trying to find my lost product key. I recently bought a Compact Hp Presario Cq60 Notebook suddenly pawn and they had scratched off the coast product key. So I went throug
-
Is this possible using calendar (Windows Live Mail) on Dell Streak 7 Tablet?
I am using Windows 7 on my laptop and my email is Windows Live Mail. I use the calendar with Windows Live Mail. I would use this calendar on my Dell Streak 7 Tablet instead of keeping two different calendars. Is it possible or can suggest you some
-
Quick to sign you place and take your money but never answer the phone within a reasonable time to resolve billing errorsCharged for things orderly and double spout and nobody will not answer the phoneOMG