RelatedCommandsarea encryption – configures an IPsec encryption policy for an OSPFv3 area.show crypto ipsec policy – displays the configuration of IPsec encryption policies.show crypto ipsec sa ipv6 – displays the security associations set up for OSPFv3interfaces in encryption policies.ipv6 ospf graceful-restart helper-rejectConfigure an OSPFv3 interface to not act upon the Grace LSAs that it receives from a restarting OSPFv3neighbor.S4810Syntax ipv6 ospf graceful-restart helper-rejectTo disable the helper-reject role, enter no ipv6 ospf graceful-restarthelper-reject.Defaults The helper-reject role is not configured.CommandModesINTERFACECommandHistoryThis guide is platform-specific. For command information about other platforms,refer to the relevant Dell Networking OS Command Line Reference Guide.The following is a list of the Dell Networking OS version history for this command.Version 9.1.(0.0)Introduced on the S4810 and Z9000.Version 8.4.2.2 Introduced on E-Series TeraScale.Version8.3.19.0Introduced on the S4820T.UsageInformationBy default, OSPFv3 graceful restart is disabled and functions only in a helper role tohelp restarting neighbor routers in their graceful restarts when it receives a GraceLSA.When configured in a helper-reject role, an OSPFv3 router ignores the Grace LSAsthat it receives from a restarting OSPFv3 neighbor.The graceful-restart role command is not supported in OSPFv3. When you enablethe helper-reject role on an interface, you reconfigure an OSPFv3 router tofunction in a “restarting-only” role.Open Shortest Path First (OSPFv2 and OSPFv3) 1243
