US 12,452,213 B2
Update of firewall tables using ethernet virtual private network (EVPN) route type
Nitya Prabha Somayaji, San Jose, CA (US)
Assigned to Hewlett Packard Enterprise Development LP, Spring, TX (US)
Filed by Hewlett Packard Enterprise Development LP, Spring, TX (US)
Filed on Dec. 14, 2022, as Appl. No. 18/065,852.
Prior Publication US 2024/0205190 A1, Jun. 20, 2024
Int. Cl. H04L 29/06 (2006.01); H04L 9/40 (2022.01)
CPC H04L 63/0263 (2013.01) [H04L 63/0272 (2013.01); H04L 63/029 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A first network device comprising:
a first virtual extensible local area network (VXLAN) tunnel endpoint (VTEP) comprising:
a processing resource; and
a non-transitory machine-readable medium storing instructions executable by the processing resource to:
detect that a first firewall table at the first VTEP is updated, wherein the detected update is a change of a firewall rule in the first firewall table;
generate a control packet based on an Ethernet Virtual Private Network (EVPN) route type, wherein the EVPN route type is a format comprising a field specifying the update of the first firewall table; and
advertise the control packet to a second VTEP in a second network device to update a second firewall table at the second VTEP with the update of the first firewall table specified in the field included in the control packet.