Hello,
We deployed a zeroshell in a Datacenter and one on premisies.
The Zeroshell on premises has two XDSL and two VPN tunnels to the datacenter zeroshell.
Both Tunnels are aggregated in a BOND00-Interface.
We also set the MTU of the BOND00 at both sides to 1472.
If we wireshark, we see much TCP out of order and TCP Dup ACK messages.
It seems, that tcp reordering is not working. We increased the value of /proc/sys/net/ipv4/tcp_reordering to 30, but doesn’t solved it.