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I CANNOT ACCESS INTERNAL PORT WITH BRIDGE MODE.

Barnabas Amiolemen

My appologies. Ii have CISCO Router facing the ISP, I configured NAT and port forwarding on the CISCO ROUTER. All the staff can access the internet and also i am able to access the port that i opened for the external users. When I scanned, it shows port opened.

But, i now decided to introduce Sophos firewall in between the CISCO ROUTER and CISCO SWITCH so that i can do web and application filtering on my internal network. But now i cannot longer access the port that was opened before when the sophos was not introduced to the network. I try to do port scanning using nmap, but the result is that port filtered. 

What should i do?



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  • 0

    Hi,

    please edit this post it does  not make sense to me.

    Ian

  • 0 in reply to rfcat_vk

    My appologies. Ii have CISCO Router facing the ISP, I configured NAT and port forwarding on the CISCO ROUTER. All the staff can access the internet and also i am able to access the port that i opened for the external users. When I scanned, it shows port opened.

    But, i now decided to introduce Sophos firewall in between the CISCO ROUTER and CISCO SWITCH so that i can do web and application filtering on my internal network. But now i cannot longer access the port that was opened before when the sophos was not introduced to the network. I try to do port scanning using nmap, but the result is that port filtered. 

    What should i do?

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  • 0 in reply to rfcat_vk

    My appologies. Ii have CISCO Router facing the ISP, I configured NAT and port forwarding on the CISCO ROUTER. All the staff can access the internet and also i am able to access the port that i opened for the external users. When I scanned, it shows port opened.

    But, i now decided to introduce Sophos firewall in between the CISCO ROUTER and CISCO SWITCH so that i can do web and application filtering on my internal network. But now i cannot longer access the port that was opened before when the sophos was not introduced to the network. I try to do port scanning using nmap, but the result is that port filtered. 

    What should i do?

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