Patent ID: 7720995
Filing Date: 2010-05-18
Classification: H04L

Abstract:
1. A method, performed by a first host to determine if communication with a second host is allowed within a group of at least two hosts, comprising: determining, at the first host, if the host includes a group security policy for secure communication between the hosts within the group, wherein: advertising routing information from the first host to a second host within the group if the first host includes the group security policy, wherein advertising routing information includes: refraining from advertising routing information from the first host to the second host if the first host does not include the group security policy; receiving, at the first host, a routing announcement from the second host, including routing information; if the routing announcement from the second host includes a second group reference identifying the group security policy, placing the routing information within a routing table contained in the first host; and if the routing announcement from the second host does not include the second group reference identifying the group security policy, refraining from placing the routing information within the routing table for the first host.