Adding ipnat to FreeBSD 3.* See also IP Filter – an alternative firewall and NAT to ipfw/natd. If you are planning on doing Network Address Translation (NAT) or IP Masquerade (the Linux term for it), then under FreeBSD 3.*, you can easily use ipnat. This is a great little tool provided by Darren Reed as part of …
ADSL – changing the modem Tonight my modem was changed from an NEC to a Nokia M10. In the process, my firewall went from having a public address (e.g. 210.55.210.87) to having a private address (e.g. 192.168.0.59). This makes it very difficult to provide http, telnet, dns, mail, and other services. I’m in the process …
Getting DCC to work with natd DCC is and IRC Protocol and is an acroynm for Direct Client to Client protocol. DCC allows two IRC users to chat and/or send files directly with each other instead of passing the data through the server. It is a more efficient use of resources than a normal …
NAT rules – for IP Filter NAT, or Network Address Translation, is also referred to as IP Aliasing and IP Masquerading. NAT is a method for translating internal intranet (private) address to external (public) Internet addresses. In order for NAT to work, your box needs to be set up as a gateway. This allows your …
Adding a second network card (and compiling a kernel) My FreeBSD box will act as a gateway. It will do this using two network cards. One card (ed0) will talk to the outside world. The other card (ed1) will talk to my subnet.. The system needs to know about the new device. There are two …
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getting natd to run again See also, natd. At this point, I had both network cards running. From the FreeBSD machine I could ping the outside world via ed0 and my subnet via ed1. The next step was to ping the outside world from elsewhere on my subnet. I’ve modified my system to start …
The DNS problem which was an natd problem By this time, I’d been down and now I was getting up again. After nearly trashing the entire system, only to have placed gently back into my hands by a total stranger, I was ready to tackle the other problem. That was my DNS problem. Or what …
natd Network Address Translation (IP masquerading, IP aliasing) Please note: if you are running PPP, then you don’t want natd. PPP has aliasing built in. Unfortunately, I’ve never used PPP, so I suggest you follow the Pedantic PPP Primer of the FreeBSD Handbook or perhaps just see the man pages for information on -alias. That …
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