Thanks for your suggestions Karl. I see what you mean about the static routing etc. I was stuck in the mindset that another router meant another NAT. Assuming I can port forward correctly from the Telstra device that might work although there's a perfectionist part of me that balks at having essentially an "extra" device. Could this increase latency to the WAN? I have also been exploring other options and initial tests suggest that the Ubiquiti Edgerouter may work. I have also tested the interface queue (default-ethernet) change on a mates Mikrotik (he has cable internet - I don't) and so far it's looking good but as you all know this problem takes a while to eventuate. Cheers, Ben On 14 Aug 2015 9:01 am, "Karl Auer" <kauer@nullarbor.com.au> wrote:
On Fri, 2015-08-14 at 08:43 +1000, Ben Jackson wrote:
I think throttling is a red herring.
Yes.
Having essentially three routers in the mix is no go due to port forwarding complexity problems apart from just seemingly inherently "wrong".
No big additional complexity - the inner two are routing properly, not NATting. Only the first has to port forward. Except for a simple link network between RouterX and the MikroTik (and a static route on RouterX to the downstream network) it's no more complex than with the MikroTik handing the link.
modem+bridge <-> NAT+RouterX <-> MikroTik <-> network
I think the "similar bad" situation with dual NAT could well be to do with the performance hit of dual NAT rather than recreating the exact same issue.
Not unless the slowdown was immediate. The difference is the delay. If it were a NAT performance issue, the slowdown would be immediate. If it started well and dropped after a week or so, then it's not NAT; it's the same problem.
Regards, K.
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