https://community.extremenetworks.com/t5/general-network-management/trying-to-create-antispoofing-bcp-38/m-p/81886#M143 I am looking for the same, did you found any solution? Tue, 12 Jul 2022 12:10:36 GMT FreyaF 2022-07-12T12:10:36Z https://community.extremenetworks.com/t5/general-network-management/trying-to-create-antispoofing-bcp-38/m-p/81884#M141 Hi,<BR /><BR />I'm trying to create a antispoofing rule like for BCP&nbsp; 38 but it's not working, could someone help me?<BR /><BR />Police: ipcorpantispoof.pol<BR /><BR />entry IPcorporativo { if { source-address x.x.x.x/22; } then {permit;}}<BR />entry IPcorporativo1 { if { source-address x.x.x.x/22; } then {permit;}}<BR />entry IPcorporativo2 { if { source-address x.x.x.x/24; } then {permit;}}<BR />Entry Deny-TheRest { If {source-address 0.0.0.0/0;} then {deny;}}<BR /><BR />1 - configure access-list ipcorpantispoof ports 4:18 ingress&nbsp;<BR />2 - port 4:18 is a LAG<BR />3 - I already tried to create the rule in the CPE and at CP (changing do ingress and egress but no success).<BR /><BR />Regards,<BR />Alexandre Mon, 28 Mar 2022 15:12:35 GMT https://community.extremenetworks.com/t5/general-network-management/trying-to-create-antispoofing-bcp-38/m-p/81884#M141 alexandreb 2022-03-28T15:12:35Z https://community.extremenetworks.com/t5/general-network-management/trying-to-create-antispoofing-bcp-38/m-p/81885#M142 Anyone can help? Thu, 31 Mar 2022 23:19:11 GMT https://community.extremenetworks.com/t5/general-network-management/trying-to-create-antispoofing-bcp-38/m-p/81885#M142 alexandreb 2022-03-31T23:19:11Z https://community.extremenetworks.com/t5/general-network-management/trying-to-create-antispoofing-bcp-38/m-p/81886#M143 I am looking for the same, did you found any solution? Tue, 12 Jul 2022 12:10:36 GMT https://community.extremenetworks.com/t5/general-network-management/trying-to-create-antispoofing-bcp-38/m-p/81886#M143 FreyaF 2022-07-12T12:10:36Z