OpenBGPD non prefix receive on other side

  • Hello

    I currently have a problem with two of my Pfsense routers with OpenBGPD.

    When I world a BGP session between a Cisco router and a Pfsense with an announcement of a / 22 or / 23 ad goes perfectly and the Cisco router is receiving 1 prefix.

    However when I do the same operation with a / 24 specifically I receives no prefix.

    I find no filtering the side of my Cisco router that could cause such problems.

    Do you have an idea ?