I was led to believe that the Hex S (RB760IGS) achieves full gigabit throughput. This is not the case with IPv6. Due to the lack of IPv6 fasttrack support, IPv6 throughput maxes out at roughly 500 Mbit/s. That alone is bad enough, but on a DS-Lite connection, IPv4 is tunneled via IPv6, so even IPv4 throughput is limited by the lack of IPv6 fasttrack support. To test that this is indeed the cause of the low throughput, I disabled all IPv6 firewall rules. This allows the router to use fastpath acceleration even in absence of fasttrack support, and indeed then routing IPv6 at full gigabit speed is possible. But what good is that without any firewall capability?
They don’t support DS-Lite. But DS-Lite is just native IPv6 with an IPIPv6 tunnel to a CGNAT gateway for IPv4. Mikrotik routers can do the tunneling, but lack the automatic configuration and the necessary DHCPv6 features to script the setup. If you know the domain name of the CGNAT gateway (the “AFTR”), you can set up the tunnel manually. See RFC 6333 for details. Be warned though, the throughput will be limited due to the lack of IPv6 fast tracking support. The router can use fast path acceleration only if there are no IPv6 firewall rules.
Can you explain it a little bit more?
nat64 gw / xlat464 & dns64 resolver in the clients.
Best case will be a config example to get my ISP Provider connection in a Mikrotik RB433 OS 6.44.6 configured.
My ISP provides a 56bit IPv6 Prefix Pool and a IPv6 address per DHCP.
IPv4 is connected thrue a DS-LITE-Tunnel with a AFTR Gateway.
Tested with a AVM Fritz Box everything fine!
But I’m not able to configure it at the mikrotik router
Especially the AFTR Gateway, Ive tried with the ipipv6 tunnel but it dosen’t work
How can support in this case i guess I#m not the first one who needs the config in detail.
Would be nice if it atleast scaled right on cpus somehow.
With a simple test using fast.com with more than 2 parallel connections, on a hAP ac2, cpu3 goes up to 100% and the rest of them sit idle, tested with with ROS 7 Beta 2, same thing.
Bandwidth capped because of this under 400mbps out of ~900.
LE: Might be because of PPPoE as my ISP uses IPv6 PD over PPPoE.
With a ccr1036, I hit approx 2gb/sec per connection, while I can hit more than 9gb/s with ipv4 and fastrack. Of course, if you multiply the connections, you can be at full speed overall, but, it’s not ideal.
unfortunately it seems impossible for now. they said that they should add route cache first:
Hello
FastPath depends on route cache and there is no route cache in v7.
FastTrack cannot work if there is no FastPath support. Since IPv6 currently does not support FastPath, you cannot run FastTrack. Currently, there is no ETA for such functionality.
Best regards
Mārtiņš S.
I can only get 600mbps± without firewall, with firewall it maxed at 350mbps, what did you do with hAP ac2 to get it run at 1gbps in ipv6? Can share to us?
