Date: Tue, 4 Oct 2005 13:16:04 +0800 From: "Foo Ji-Haw" <jhfoo@nexlabs.com> To: "K Anderson" <freebsduser@comcast.net>, <freebsd-questions@freebsd.org> Subject: Re: Need help: fwd on ipfw Message-ID: <013b01c5c8a2$b8f57b80$c801a8c0@nexpc> References: <010a01c5c89a$f4234c80$c801a8c0@nexpc> <004b01c5c8a0$59001f70$0c64a8c0@opteron>
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Hello Mr Anderson, So, the story is that the newer versions of 5.x comes with forwarding disabled, hence the inability to to ipfw add fwd? Ok, will definately give it a try. Thanks for being a better Googler than me! ----- Original Message ----- From: "K Anderson" <freebsduser@comcast.net> To: "Foo Ji-Haw" <jhfoo@nexlabs.com>; <freebsd-questions@freebsd.org> Sent: Tuesday, October 04, 2005 12:59 PM Subject: Re: Need help: fwd on ipfw > > ----- Original Message ----- > From: "Foo Ji-Haw" <jhfoo@nexlabs.com> > To: <freebsd-questions@freebsd.org> > Sent: Monday, October 03, 2005 9:20 PM > Subject: Need help: fwd on ipfw > > > Hi all, I really need your help on this if you can... > > I am trying to put set up port forwarding on my machine. So far the usual > 'add allow' and 'add deny' rules work perfectly. The most important rule > which bugs me is the 'add fwd' rule, which the snippet below shows: > ipfw add fwd 192.168.0.4,80 tcp from 10.10.10.0 to any 80 > > When I try to enter this on the command line, I get the following error: > ipfw: getsockopt(IP_FW_ADD): Invalid Argument > > I tried researching the web. Some mention the error only upon recompiling > kernels. But I am using the standard 5.4 product release as-is. My firewall > rules in rc.conf are as follows: > firewall_enable="YES" > firewall_logging="YES" > > I also have this line in dmesg: > ipfw2 initialized, divert disabled, rule-based forwarding disabled, default > to deny, logging disabled > > I see that 'rule-based forwarding' is disabled. Is this what caused the > error? How can I enable it? I can't find the details on the Handbook. > ----------------- > > I did a google search on your message and found something. Here's a snip of > it. > > options IPFIREWALL > options IPFIREWALL_DEFAULT_TO_ACCEPT > options IPFIREWALL_VERBOSE > options IPFIREWALL_FORWARD > > if you don't add them to your kernel, forwarding in ipfw will be disabled. > > Here's the URL. > http://archives.neohapsis.com/archives/freebsd/2005-01/0089.html > > Hope that helps. > > ~Mr. Anderson > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"
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