IPSec and packet loss: Question

Hello, hopefully a simple Question :-)

Can someone tell me what happens when an IPSec packet is lost.

He get fired?

are just the TCP packets inside IPSec resentment tunnel?

I hope someone can help!

Background: VoIP.

We have Home office users.

Some have a quality of voice some terrible have a perfect quality, even if they all use the same hardware and configurations (name of user/passwords different and IP addresses of course)

Fraser

There isn't anything in IPSec that would retransmit a lost package. It is the native protocol and terminal stations that communicate in order to determine if there is packet loss and whether or not to broadcast.

If I understand your comment correctly that you are dealing with individual users do VOIP, then more things you mention, which is different (name of user and password and addresses) almost certainly dealing with various different service providers / Internet connectivity. It would be interesting to do a ping extended with a large number of ping packets to a user who experiences problems and one that does not. I suspect that you will see a significant difference in packet loss.

HTH

Rick

Tags: Cisco Security

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    Here are other minor problems that may or may be linked, because they seemed too much to start with.

    Switching away applications full screen takes more time: Windows 7 on my machine, switching off games full screen takes more time than he did in the past. It was a minor issue in autumn 2010 and became much worse early 2011.

    Some windows lost focus while being re-size: if I take the corner of some windows for re - size, sometimes the re-size operation stops until I release the mouse button, as if he has lost the focus. Color of the window indicates usually focus however is still there, and grabbing the corner once again we will move me a little more. It may take several tries to get the window size as I want, as the re-size operation closes several times before I release the mouse button. This affects only 2 of the 4 people I talk so much that I can tell from our conversations and shared between Vista and 7. Both of us have Logitech mouse it might even be a driver problem, but using a mouse cheap test has not fixed the problem with me.

    Firefox: Firefox repeatedly will "dim", where Aero makes the window lose color to indicate that the application is not responding. It didn't happen before January 2011 for any version of Firefox.

    Concrete results to track down the problem:

    I ran programs like WhatHang and others who are trying to catch the programs that are suspended, stealing focus, etc.. Hours of testing found no results except that Firefox crashes frequently. Disable Firefox doesn't solve all the issues however, so I guess that its not related.

    I tried booting safe and clean, and they have had no effect. Secure boot is rather useless since I can not usually run programs that show the problem more easily. I also tried turning off everything except what comes with Windows 7, and it had no significant effect.

    I tried to use a different mouse. While it helped a bit with one of my friends, it only helped me so far. Different mouse drivers do not seem to help either. I also tried various nVidia without significant information acquired or corrective drivers.

    I also ran through various other ideas here as the race of the file system scanner and so on and not found any problems with my system, and where I could help my friends do and they also found nothing of note with maintenance and verification tools.

    My friends and co-workers: most of them are not local to me, so my focus of their issue has been rather limited. The main thing that we all have in common is that we had some minor problems in the past, as in 2010, and they've all got a lot worse in early 2011. Unfortunately none of us kept of records accurate enough to indicate any special updates that might have caused it.

    In any case, I apologize for the log message, but this issue emphasis is maddening. Its become a frustration serious then I thought to post information on the problems which seem related would be the more useful approach.

    I am a graduate of comp-sci systems and a companion systems programmer, and I have tried everything I can think of to debug and isolate problems, symptoms, etc. and had no chance. My friends are usually illiterate computer so that they are even more perplexed and frustrated by this problem. In my reading the forums, I see a lot of Windows Vista and 7 discussion questions, but rarely a lot of details, and when a problem is identified, it this far does not apply to me or my friends.

    I am happy to provide any other details I can.

    Updates:

    I forgot to mention that I have a Setup dual monitor. Aero seems unhappy with it, a lot of flicker when switching to full screen in games and other applications. I guess its because a single display off Aero while the other has it we or maybe not accelerated. Remove the second screen does not solve the problems I see, but I mention it in the interest of further development.

    I want to just chime in that I see similar (but not exactly the same) behavior and time seems to match as well. Among the updates must have messed something up. I forgot my Cardinal never update rule anything :/

    In any case, I have a few specific questions all problems related to full screen/window/input. When you play the Witcher, when you look at, if the mouse touches the edge of the screen, it stops, thus giving a very narrow range of angles I can watch from. Baldurs gate, as soon as I hit any key, I can't click on anything whether (and what I typed does not appear). Looking for police 3 (dosbox) it works fine until I hit a key, and then the mouse bounces oddly around the screen. If I alt - tab, in these 2 cases to last and go back, the problem is solved until I have a button again. In the case of the Witcher, if I alt tab and click the icon to the taskbar, it seems this problem, until I have a press.

    And I'm sure I had none of these problems a few months ago. I have tried everything I can think :( I tried the registry settings, but they do not seem to help.

    Edit: Oh, almost forgot. Whenever I click on full screen on an online video, like youtube, it appears in the background behind other windows, and then I have to click on it in the background to bring it forward. Very weird. Not sure if it's related. I'll try to change my video drivers... So boring when everything was working fine a few months ago.

    Edit 2: Do not take into account my post, I had a program called synergy race (usually use a mouse on multiple computers at the same time). Apparently, he was the problem.

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