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Sonicwall Pro 300 - 'Public LAN Server'

I just want to verify an assumption.  I see in the ACCESS section that the list of services has a LAN out checkbox which obviously allows outbound traffic on those ports.  I am interested in the 'Public LAN Server' setting.  My assumption is that if there is an IP specified, that means only that IP can take inbound traffic on that port.  Correct?  If so, does the 0.0.0.0 setting mean any IP can accept traffic provided there is a rule set?

I am specifically interested in this as I have two mail servers behind the same firewall and after setting up the new rules I had problems with the first mail server.

Thanks for any info and tips you can provide!
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kenhale
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kenhale
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jasonpaineCommented:
In the public lan server you put the IP address of your server and you then can receive inbound traffic on the service to the server. If you do not have a public lan server then you use 0.0.0.0.
so you would add the ip of your mail server so you can receive inbound traffic on port 25...you can also create an access rule to allow this traffic.
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kenhaleAuthor Commented:
I have two mail servers behind the same firewall and after setting up the new rules I had problems with the first mail server.  If there is an IP specified in the 'Public LAN Server' setting, does that means only that IP can take inbound traffic on that port?  If so, does the 0.0.0.0 setting mean any IP can accept traffic provided there is a rule set?
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jasonpaineCommented:
If you use 0.0.0.0 I don't believe any IP can accept traffic provided there is a rule set since the sonicwall is configured if you you use 0.0.0.0
see top of page 129  http://www.sonicwall.com/support/pdfs/InternetSecurityApplianceFamilyManual.pdf
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