Hi,
There is no list available on the SRX.
Here is the configuration to block the IPs using firewall filters :-
set firewall filter test2 term 1 from source-address 31.13.81.5/32 set firewall filter test2 term 1 from source-address 31.13.81.34/32 set firewall filter test2 term 1 from protocol tcp set firewall filter test2 term 1 then reject set firewall filter test2 term 2 then accept
Then apply this filter as input on your interface :-
set interfaces <name> family inet filter input test2
More details in the following link :-
https://kb.juniper.net/InfoCenter/index?page=content&id=KB21872
Regards,
Sahil Sharma
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Please mark my solution as accepted if it helped, Kudos are appreciated as well.