Re: Max outbound connections to different servers limited to 65k

[ML]

On Tue, Dec 23, 2008 at 1:06 AM, ArcosCom Linux User <linux@xxxxxxxxxxxx> wrote:
> Don't remember fine, but:
>
> For the conntrack table allow more entries, put the value here:
>
> /proc/sys/net/ipv4/ip_conntrack_max
>
> And (I don't remember this) there are another one for the kernel routes
> table size.
>

I dont think this is related to conntracks.

> Perhaps taking a view into kernel documentation installed in your system
> or in www.lartc.org you can find those.
>
> Regards
>
>
> El Vie, 19 de Diciembre de 2008, 8:17, ML escribió:
>> Hi,
>>
>> I am trying to make a large number of connections to multiple servers
>> from a simple tcp client. My ephemeral port range is
>> net.ipv4.ip_local_port_range = 3000     64000
>>
>> but it seems like after the number of connections reaches the allowed
>> port_range, I get:
>> bind(): Address already in use
>> I am connecting to 3 different servers.
>>
>> So does that mean that I can only have a max of 65535-1024
>> connections, even if I am connecting to different servers.
>>
>> I was assuming that the kernel will use the entire tuple to store the
>> information and would allow reusing the ephemeral port if the dst is
>> different.
>>
>>  Is there any option/patch to enable more that 65k connections.
>>
>> Thanks for your time.
>>
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>
>
>
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