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Discussions Ignore IPSEC repeating sequence numbers

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Ignore IPSEC repeating sequence numbers

Mark Percival over 2 years ago

we have an IPSEC tunnel and the XG Firewall is dropping packets where the IPSEC sequence number is repeated.

- are the dropped packets logged ?

- Can we disable this behaviour (e.g. set replay window to zero to disable).

Advice welcome.

This thread was automatically locked due to age.

0 Erick Jan over 2 years ago

Hi Mark,

Logs can be turned on or turned off based on the Firewall rule

You can do a packet capture and droppacket command further check what is causing this issue.

Drop packet :https://support.sophos.com/support/s/article/KB-000036858?language=en_US

Diagnostic tool: www.youtube.com/watch

Can you elaborate more on the IPSec sequence number being repeated? Thanks

Erick Jan
Community Support Engineer | Sophos Technical Support
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