Pedro Fernandes Macedo wrote:
Gonna take a long shot here... Check on /proc/sys/net/ipv4 if tcp_ecn is enabled. Some routers silently drop packets if the ECN bit is set... maybe your router is one of those...
I should have mentioned, that I added : net.ipv4.tcp_ecn=0 net.ipv4.tcp_window_scaling=0 to the stock /etc/sysctl.conf and did a sysctl -p
Also , do a tcpdump when trying to connect from bigboy to an external webserver. This way you will know if the data is going through the firewall.. if it is , the next step is trying to check the router , as it is the most probable cause...
I used one of my web servers as a target and did a tcpdump on my end looking for traffic from the clients entire network and got nothing from bigboy, but got traffic from mail1. It appears that the traffic isn't leaving their site when bigboy is involved.
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