Re: [ANNOUNCE] ipset-5.0 released

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On Thu, 23 Dec 2010, Mr Dash Four wrote:

> > Just to illustrate:
> > 
> > # ipset create test hash:ip,port                          # ipset add test
> > 192.168.0.0/30,tcp:80-82                 # ipset list test
> > Name: test
> > Type: hash:ip,port
> > Header: family inet hashsize 1024 maxelem 65536
> > Size in memory: 16888
> > References: 0
> > Members:
> > 192.168.0.3,tcp:81
> > 192.168.0.0,tcp:82
> > 192.168.0.1,tcp:81
> > 192.168.0.1,tcp:82
> > 192.168.0.3,tcp:82
> > 192.168.0.0,tcp:80
> > 192.168.0.2,tcp:80
> > 192.168.0.0,tcp:81
> > 192.168.0.1,tcp:80
> > 192.168.0.2,tcp:82
> > 192.168.0.2,tcp:81
> > 192.168.0.3,tcp:80                                                                
> Wow! telepathy must be my forte!!! That's just the example I emailed you to
> see if I understand you correctly!
>
> OK, does that differ if I have hash:net,port set (I presume when listing with
> ipset -L you will show the net ranges - 192.168.0.0-192.168.0.0,tcp:80-82), is
> that right?

For net types the networks are not exploded, of course:

# ipset create test hash:net,port 
# ipset add test 192.168.0.0/30,tcp:80-82
# ipset list test
Name: test                                                                      
Type: hash:net,port                                                             
Header: family inet hashsize 1024 maxelem 65536                                 
Size in memory: 16856                                                           
References: 0                                                                   
Members:                                                                        
192.168.0.0/30,tcp:80                                                           
192.168.0.0/30,tcp:82                                                           
192.168.0.0/30,tcp:81                                                           

However please note, the "net" types slow down linearly with the number of 
different network prefixes in the set.

Best regards,
Jozsef
-
E-mail  : kadlec@xxxxxxxxxxxxxxxxx, kadlec@xxxxxxxxxxxx
PGP key : http://www.kfki.hu/~kadlec/pgp_public_key.txt
Address : KFKI Research Institute for Particle and Nuclear Physics
          H-1525 Budapest 114, POB. 49, Hungary
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