Re: Limiting icmp unreach response fron 348 to 200 packets/sec

Erol Akarsu wrote:
> Hi,
> 
> Thanks for helping this.
> 
> Now, I am getting "Limiting icmp unreach response fron 348 to 200 packets/sec"
> 
> In which conditions can we get this? does this effect functionality of the system?
> How can I solve this issue?
> 

It means something in your network is not working well and the
system is being tempted to send lots of ICMP packets in complaint,
but it is only sending200 complaints per second because it has been
told to limit itself to that number.

Using tcpdump to see what ICMP packets ARE being sent would be a good 
place ot start.
Also FreeBSD has a good set of man pages unlike many Linux
distributions. So try the man pages and google when you hit a problem..
e.g. man -k icmp will give you a list of man pages that hace something 
to do with icmp
man -k sysctl

man 1 intro
man 2 intro
man 3 intro
man 4 intro
man 9 intro
are also good starting places.
man man is worth a look too.







> Thanks
> 
> Erol Akarsu
> 
> 
> 
> 
> ----- Original Message ----
> From: cpghost <cpghost_at_cordula.ws>
> To: Erol Akarsu <eakarsu_33_at_yahoo.com>
> Cc: freebsd-current_at_freebsd.org
> Sent: Friday, August 15, 2008 7:42:05 PM
> Subject: Re: Freeswitch on latest FBSD
> 
> On Fri, Aug 15, 2008 at 04:23:39PM -0700, Erol Akarsu wrote:
>> Can you help me on setting other limits? I did the following but it
>> did not change.  I would like this like I do in linux:
>>
>> ulimit -c unlimited
>>
>> Could you please tell me how I will do it on FreeBSD?
> 
> Which shell are your using?
> 
> With csh/tcsh:
> 
> # limit
> cputime      unlimited
> filesize     unlimited
> datasize     524288 kbytes
> stacksize    65536 kbytes
> coredumpsize unlimited
> memoryuse    unlimited
> vmemoryuse   unlimited
> descriptors  7092
> memorylocked unlimited
> maxproc      3546
> sbsize       unlimited
> 
> # limit stacksize
> stacksize    65536 kbytes
> 
> # limit stacksize 32000
> # limit stacksize
> stacksize    32000 kbytes
> 
> # limit stacksize unlimited
> # limit stacksize
> stacksize    65536 kbytes
> 
> With /bin/sh:
> 
> # ulimit -a
> cpu time               (seconds, -t)  unlimited
> file size           (512-blocks, -f)  unlimited
> data seg size           (kbytes, -d)  524288
> stack size              (kbytes, -s)  65536
> core file size      (512-blocks, -c)  unlimited
> max memory size         (kbytes, -m)  unlimited
> locked memory           (kbytes, -l)  unlimited
> max user processes              (-u)  3546
> open files                      (-n)  7092
> virtual mem size        (kbytes, -v)  unlimited
> sbsize                   (bytes, -b)  unlimited
> 
> # ulimit -s 32200
> # ulimit -s
> 32200
> 
> # ulimit -s unlimited
> # ulimit -s
> 65536
> 
> If you need to rise other limits (say, open files, etc...), you'll
> need to crank up the sysctl value. You can get a list of all sysctl
> values like this:
> 
> # sysctl -a | more
> 
>> Thanks
> 
> -cpghost.
>