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My network has 2 subnets /25 and Linux server in each subnet. One of the subnets contains a Windows computer which is used for managing Linux servers via SSH; but there is problem with firewall on this computer.The firewall allows communication within the same subnet but blocks communication into (or response coming back?) the second subnet.
I have tried to set inbound and outgoing rule, allowing PuTTY by wizard in main firewall control panel and nothing has worked me. Please tell me what I have done wrong or how to set up it correctly.
I have tested that when firewall is completely disabled, communication works.
I have tested that Windows blocks all ports. I can't use FTP or Remote Desktop Protocol either.
Wireshark shows black lines with TCP Retransmissions
, TCP Surious Retransmission
and TCP Dup ACK
. Between these lines are black ICMP redirects.
I enabled logging DROPed packets in Widows firewall and no entry is written when firewall block the communication. – Misaz – 2016-06-17T20:48:14.313
Are you sure you applied the rules to the correct profile (i.e. private/public/domain)? What happens if you temporarily set inbound connections to be allowed by default? – Ben N – 2016-07-11T20:07:23.760
Relus are set to all profiles. If I set allowing inboud connection by default it works. – Misaz – 2016-07-11T20:52:46.600