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    Introducing Netgate Nexus: Multi-Instance Management at Your Fingertips.

    IPSEC traffic become unidirectional and works fine when disabling firewall at pfsense

    Scheduled Pinned Locked Moved IPsec
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    • A Offline
      antonyms
      last edited by

      We have several IPSEC tunnel connecting to pfsense gateway, version used is 2.8.1-RELEASE (amd64), built on Tue Sep 9 16:29:00 UTC 2025, FreeBSD 15.0-CURRENT. We reinstall tunnels quite often, once in a while, one of the tunnel we see traffic going only in one direction which means, from remote endpoint traffic reached at pfsense but no traffic back. We are not added any explicit firewall rules, but initially when we reboot pfsense the problem disappear, later we found that disabling firewall could work. Can you please help me to understand more on this problem. Please let me know what more details needed.

      Thanks,
      Antony

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