It would probably to see all of your iptables configuration with the
firewall on, as well as to better-understand your networking setup on the
client and server sides. I presume you are using openSUSE on both ends,
but I do not know that for sure. Run the following commands to get some
helpful data for us from both the client and server systems (labeled
appropriately):
sudo /usr/sbin/iptables -nvL
sudo /usr/sbin/iptables-save
ip a
ip r
If nothing else the first two should let us see all of your running
firewall rules, and that may help us see, combined with the latter two,
where a mismatch may exist, particularly if you can share some of the
messages from /var/log/firewall where you see the dropped packets.
–
Good luck.
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