Special Forums IP Networking Nat and packet limits with iptables Post 302836689 by DGPickett on Wednesday 24th of July 2013 01:52:31 PM
Seems possible:
Man Page for iptables (all Section 8) - The UNIX and Linux Forums
Code:
   limit
       This  module  matches at a limited rate using a token bucket filter.  A
       rule using this extension  will	match  until  this  limit  is  reached
       (unless	the `!' flag is used).	It can be used in combination with the
       LOG target to give limited logging, for example.

       --limit rate[/second|/minute|/hour|/day]
	      Maximum average matching rate: specified as a  number,  with  an
	      optional	`/second',  `/minute',	`/hour', or `/day' suffix; the
	      default is 3/hour.

 
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IPTABLES-SAVE(8)                                                  iptables 1.6.1                                                  IPTABLES-SAVE(8)

NAME
iptables-save -- dump iptables rules to stdout ip6tables-save -- dump iptables rules to stdout SYNOPSIS
iptables-save [-M modprobe] [-c] [-t table] ip6tables-save [-M modprobe] [-c] [-t table] DESCRIPTION
iptables-save and ip6tables-save are used to dump the contents of IP or IPv6 Table in easily parseable format to STDOUT. Use I/O-redirect- ion provided by your shell to write to a file. -M, --modprobe modprobe_program Specify the path to the modprobe program. By default, iptables-save will inspect /proc/sys/kernel/modprobe to determine the exe- cutable's path. -c, --counters include the current values of all packet and byte counters in the output -t, --table tablename restrict output to only one table. If not specified, output includes all available tables. BUGS
None known as of iptables-1.2.1 release AUTHORS
Harald Welte <laforge@gnumonks.org> Rusty Russell <rusty@rustcorp.com.au> Andras Kis-Szabo <kisza@sch.bme.hu> contributed ip6tables-save. SEE ALSO
iptables-apply(8),iptables-restore(8), iptables(8) The iptables-HOWTO, which details more iptables usage, the NAT-HOWTO, which details NAT, and the netfilter-hacking-HOWTO which details the internals. iptables 1.6.1 IPTABLES-SAVE(8)

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