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Discussions Server access : port to port won't work

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Server access : port to port won't work

helmut willems 5 months ago

hello ,

i'll try a simple port forwarding

when i setup this like below , it works

when i change the source port to 7887 then it dont forward.

why o why ?

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Top Replies

Mayur Makvana 5 months ago +1 suggested

Hello, Thank you for contacting Sophos Community! You need to create the DNAT rule with the help of below KBA: docs.sophos.com/.../index.html

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0 emmosophos 5 months ago

Hello there,

You shouldn't change the Source Port, as the application/endpoint will always randomly pick a Port between 1 and 65:535 to start the connection, which is the source port the Firewall will see; that is why when you change to 7887, the rule doesn’t apply to the traffic.

Regards,

Emmanuel (EmmoSophos)

Technical Team Lead, Global Community Support
Sophos Support Videos | Product Documentation | @SophosSupport | Sign up for SMS Alerts
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0 emmosophos 5 months ago

Hello there,

You shouldn't change the Source Port, as the application/endpoint will always randomly pick a Port between 1 and 65:535 to start the connection, which is the source port the Firewall will see; that is why when you change to 7887, the rule doesn’t apply to the traffic.

Regards,

Emmanuel (EmmoSophos)

Technical Team Lead, Global Community Support
Sophos Support Videos | Product Documentation | @SophosSupport | Sign up for SMS Alerts
If a post solves your question use the 'Verify Answer' link.
Cancel
Vote Up +1 Vote Down

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