On 22/04/13 11:50 AM, hannah commodore wrote:
On 22/04/2013, at 10:48, Tony Langdon <vk3jed@gmail.com> wrote:
Hmm, having both interfaces up is probably not an option, thanks to NAT and the need for port forwarding (wouldn't changing interfaces mean changing IPs? it shouldn't. arp in Linux will respond to any IP assigned on the machine, not just that interface. configurable via sysctl of course. you could put the one IP on a loopback and none on the other interfaces, and it should still work with NAT as long as those interfaces are up, at least
I think I've found a possible solution to my needs. I'll try running BOTH links at the same time. A closer analysis of the situation revealed that only one machine (a Windows box) needs the consistent bandwidth of the powerline adapters, but it also doesn't need network access when the power is off. The Linux devices that will be running 24x7 don't need much bandwidth. As long as the latency is reasonably consistent (something a good wifi signal can easily manage), then they will work well. So the Linux devices will be on the far end of the wifi link. In the event of an actual link failure (a low probability event), then manual cable swapping will get everything going again, but under normal conditions, the critical systems will be protected from those annoying brownouts and the like.
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