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Mubasher_Sultan's avatar
Mubasher_Sultan
Icon for Nimbostratus rankNimbostratus
Dec 19, 2013

How Packet filters works in F5?

Hi Folks,

 

Need to understand the Packet Filter.

 

1) Is it bi-directional? I mean stateful. The return traffic will be allowed. 2) What do you mean by Filter established connections? (Default value is disabled)

 

Please refer with links or example.

 

Regrds, Mubasher Sultan

 

5 Replies

  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Dec 19, 2013

    Hi Mubasher,

     

    Yes packet filters are stateful.

     

    You can apply a new packet filter to existing connections if you enable that option.

     

    Aaron

     

  • mikehouse_35079's avatar
    mikehouse_35079
    Icon for Nimbostratus rankNimbostratus
    Dec 21, 2013

    Packet filters enforce an access policy on incoming traffic. They apply to incoming traffic only.

     

    http://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/bigip_tmos_concepts_11_0_0/tmos_packet_filters.html?sr=34042402