> and insert some custom made entries into the NAT table. > Now, I am attempting to play around with the connections created by the NAT > iptables -t nat -A POSTROUTING -s 192.168.0.0/24 -o wan0 -j MASQUERADE. > Router has the ip_forwarding and MASQUERADE enabled for doing NAT, i.e. > The Host-A uses the router's IP as default gateway i.e. I am running a VM with Ubuntu 14.04, kernel 3.19.0-33 and > I'm facing problems when trying to insert a custom made connection with On Tuesday 09 February 2016 13:07, Llorente Santos Jesus wrote: If you make progress let me know, as I sure would like a better understandingĪnd perhaps a simpler solution that I am trying.
Having said all that I could be wrong as I don't have it working and thus lackĮvidence for my understanding. The NAT translating, so the internal IP is not on the WAN. Will look like it is coming/going to the NAT and the outside machine, with Tracking and DNS to make entries so it can connect inside, but the traffic WAN connects to the NAT with a DNS name inside, and the NAT uses connection Have a look at the hacking document, especially the section on tracking/nat:įor a complete example the TFTP modules are pretty small:Īnyhow, what I am trying to do is reverse NAT traversal, ie a machine on the See examples for FTP and TFTP in the kernel modules sources and docs. IP translation of the following traffic, the modules are 'helpers'. This in some experiments to understand application level gateways.įor the 'expectation' and the ALG there needs to be kernel modules that do the Later traffic and when they do they become regular connections. I have been looking at 'expectation's which allow creating entries that match Never recognized as having anything to do with the traffic that follows.
I have been looking at a similar problem without success, at least so far.īut I believe part of the problem is the connections you have created are Subject: Re: Problem inserting a new connection with conntrack
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