Netgate SG-1000 microFirewall

Author Topic: Great work and a small finding: illegal IP configuration possible  (Read 1661 times)

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Offline aferret

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Hello there

I just gave pfsense (1.2.2) a try and am very happy with the product. Great work!

While playing around trying this and that, I noticed it is possible to configure the interfaces with an illegal IP address, e.g. network address (, et cetera). And box does - with an according rule - answer to ICMP echo requests to this configured IP address as well, when it receives such.

Would be nice, if IP address / subnetmask are checked for being legitimate, warn and/or prevent configuration accordingly.
« Last Edit: March 31, 2009, 11:34:20 am by aferret »