Choosing IP Address For Firefox

On my server I have 2 static IP addresses. I would like to set Firefox to use one IP address exclusively. Does anyone have any good ideas on achieving this?

J.Miller

Posted 2013-04-04T13:39:36.987

Reputation: 57

This is not going to do you any favours. Almost no sites on the internet currently use IPv6. And even if they did, that's not really how this works - it will use IPv6 if and only if the target host address is an IPv6 address. Instead you should be looking for options to prefer AAAA DNS records over A records. – DaveRandom – 2013-04-04T13:44:42.547

So what your saying is even if the site supports IPv6 its default is probably IPv4 and will always go to that one? – J.Miller – 2013-04-04T13:52:16.430

Am I correct that IP addresses only belong to systems, not software? With appropriate exception for virtualization, but you're still only getting an IP for a system, even if it is a virtual one? – music2myear – 2013-04-04T13:54:38.253

possible duplicate of How can I get Firefox/Chrome to reach IPv6 websites?

– DaveRandom – 2013-04-04T14:04:39.520

You claim 'The IPv4 address is set as my main address'. Can you please explain that? Choosing addresses is usually done (by default) according to RFC6724 or RFC3484. – Sander Steffann – 2013-04-04T14:17:38.103

@SanderSteffann - After going back and looking it appears your right the IPv4 is not as said the "default". It appears to switch between the 2. Ill go back and rephrase – J.Miller – 2013-04-04T15:10:31.110

@DaveRandom - I think you've focused on the 4 vs 6 part of my question. Your link appears to go to someone trying to get a 4to6 tunnel up and running. I already have a IPv6 address so I don't need a tunnel... at least I don't think I do. – J.Miller – 2013-04-04T15:30:29.973

Answers

Firefox does not support explicitly binding it to a certain IP address. It uses the address selection mechanisms (for source address and destination address) provided by the operating system. Depending on your platform there are ways to change that, but you'll change it for the whole OS, not just Firefox.

Linux based systems use /etc/gai.conf for the destination address selection. Setting a fixed source address can be done in the routing table. Take a look at the ip route add ... via ... src ... command syntax.

Sander Steffann

Posted 2013-04-04T13:39:36.987

Reputation: 4 169

The solution to your problem is available here. This is what you needed http://old.r1ch.net/stuff/forcebindip/

Rod Dines

Posted 2013-04-04T13:39:36.987

Reputation: 1

Please read How do I recommend software for some tips as to how you should go about recommending software. You should provide more than just a link, for example some additional information about the software itself, and how it can be used to solve the problem in the question.

– DavidPostill – 2015-11-28T17:08:37.583