Open port on firewall to allow access file sharing

Open port on firewall to allow access file sharing



Open port on firewall to allow access file sharing

1. Prepare

– DC21 : Domain Controller (pns.vn), IP 10.0.0.21 | DC22 : Terminal Server , IP 10.0.0.22

– ASA : Cisco ASA 8.42 , IP management 10.0.0.100

– DC23 : File Server , IP 10.0.0.23 | WIN1091 : Client , IP 10.0.2.92 ( LAN2 )

2. Step by step : Open port on firewall to allow WIN1091 access to file sharing on DC23 ( Port 445 )

– DC23 : Create and share a folder named DATA

– DC22 : Access \10.0.0.23DATA – OK

– WIN1091 : Test access File Server

+ Start – run – \10.0.0.23 === cannot access

+ Start – cmd – ping 10.0.0.23 === OK

+ Telnet 10.0.0.23 445 === Connect failed

– DC22 : Open port 445 on firewall

+ Access the Cisco ASA using ASDM :

+ Configuration tab – Firewall – Right-click LAN2 – Add Access Rule…

+ Action : Permit

+ Source : 10.0.2.91

+ Destination : 10.0.0.23

+ Service : – tcp-udp/445 – OK

+ Description : Access File === OK – Apply

– WIN1091 : Test access File Server

+ Start – run – cmd – Telnet 10.0.0.23 445 === OK

+ Start – run -\10.0.0.23 === OK

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