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Re: [FW-1] too many ip address



The less granular you make your rules, the less overhead your fw will
require, but you are trading off it's security by doing so.

To answer your question, a way to limit your work in defining these hosts
would be to define networks which include them.  I would strongly recommend
_against_ doing that as it's very poor fw practice.

By defining each of these IPs as it's own workstation, you will increase the
amount of time it will require to compile the policy (mailing list, please
correct me if I am mistaken here), and each rule you add will add to the
amount of time for checking rules.  Of course the entire point of the
firewall is to allow you to have near omnipotent control over the traffic
that traverses your network, so take advantage of that ability.

HTH,
Alex

-----Original Message-----
From: liu [mailto:[email protected]]
Sent: Wednesday, May 22, 2002 11:28 PM
To: [email protected]
Subject: [FW-1] too many ip address


Hello

I am setting up a rule base for Checkpoint 4.1 on Nokia platform.Now I meet
a problem that I get a lot of ip addresses to be set.Here are some examples.

        Allow from 61.206.32.210
        Allow from 61.206.32.211
        Allow from 210.134.83.49
        Allow from 210.134.83.50
        Allow from 210.134.83.51
        Allow from 210.134.83.62
        Allow from 210.146.60.197
        Allow from 210.146.60.198
        Allow from 210.146.60.199
        Allow from 210.146.60.204
        Allow from 210.146.60.205
        Allow from 210.146.60.206
        Allow from 210.146.60.207
        Allow from 210.146.60.208
        Allow from 210.146.60.209
        Allow from 210.146.60.210
        Allow from 210.151.9.173
        Allow from 210.151.9.174
        Allow from 210.151.9.175
        Allow from 210.151.9.179
        Allow from 210.151.9.180
        Allow from 210.169.193.224
        Allow from 210.169.193.225
        Allow from 210.169.193.230
        Allow from 210.169.193.231
        Allow from 211.8.49.161
        Allow from 211.8.49.162
        Allow from 211.8.49.163
        Allow from 211.8.49.164
        Allow from 211.8.49.165
        Allow from 211.8.49.166
        Allow from 211.8.159.129
        Allow from 211.8.159.130
        Allow from 211.8.159.131
        Allow from 211.8.159.132
        Allow from 211.8.159.133
        Allow from 211.8.159.134
        Allow from 211.8.159.135
        Allow from 211.8.159.136
        Allow from 211.8.159.185
        Allow from 211.8.159.186
        Allow from 211.8.159.187
        Allow from 211.8.159.188
        Allow from 211.127.183.50
        Allow from 211.127.183.51
        Allow from 211.127.183.52
        Allow from 211.127.183.53
        Allow from 210.151.9.50
        Allow from 210.151.9.137

You see ,some of them are consequent and some are not.
For those listed above are only a part of them ,create workstations(object)
for all the ip(about 400) is reallyhard work and it is difficult for
maintenance in the future.Do someone know whether there is other better ways
to avoid this.

And will this have some affection to the running speed of Firewall module ?

Thanks in advance!

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