No, i do not have an IPIP(v4) tunnel to try that. My provider is IPv6 native, with an IPIP6 Tunnel for IPv4 Internet access.Were you able to test IPIP(v4) usage scenario where there is Fast Path allow-fast-path=yes to increase the performance?
Nevertheless i did test the underlying native IPv6 speed that carry the IPv4 Tunnel, the speed here is around 600 Mb/s download. Without the RB3011, if i use the provider Internet Box, i get around 940 mb/s. This IPv6 slow down is probably caused by the VLAN interface on top of the SFP. The tagging / untagging on the RB3011 SFP port is using the CPU too unfortunately.
No, this provider is using only the Ethernet MAC address for authentication and native Ethernet IPv6 with an MTU slightly higher than 1500 to allow for an IPIP6 tunnel with an internal MTU of 1500. A simple spoof of the provider box MAC address gives access.Is the resource hog PPPoE used for authentication by your ISP?
Eventually from here we can get the IPv6 prefix and default IPV6 route through a DHCPv6 client request. It's working i did try it. But as there is only a single /60 to get and a default route, and because that never change, i did the same setup manually. A global IPv6 address on the router is not even necessary to get IPv6 Internet access, the FE80 link local address is enough. But an IPv6 global address on the router WAN port is necessary to mount the IPIP6 tunnel. This address is forged from from the /60 prefix, adding 0:ffff:ffff:0 to it at the end. It is the same method for all clients of this provider.
The setup is really simple : VLAN 836, native IPv6 on it with a /60 that can be split in /64 prefixes (allow to make 15 IPv6 LAN sub networks), then an IPIP6 tunnel on VLAN 836 interface for IPv4 access giving a /32 public IPv4 address, then client IPv4 NAT for client LANs.
Would have been even simpler if this provider would have given native IPv4 too, but unfortunately it is not the case. I suppose that they decided to remove IPv4 from their distribution infrastructure to reduce costs and management.
Statistics: Posted by FIPTech — Fri Jan 12, 2024 12:36 pm