This requirement is not applicable for the DoDIN Backbone. Review the network topology diagram to determine connectivity between the managed network and the NOC. Review the OOBM gateway router configuration to validate the path that the management traffic traverses. Verify that only management traffic is forwarded through the OOBM interface or IPsec tunnel. If an OOBM link is used, verify that the only authorized management traffic is transported to the NOC by reviewing the outbound filter applied to the OOBM interface as shown in the example below. interfaces { description "OOBM Net"; ge-1/1/0 { unit 0 { family inet { filter { output MGMT_TRAFFIC; } address 10.2.22.2/24; } } } … … … firewall { family inet { … … … filter MGMT_TRAFFIC { term ALLOW_SNMP { from { protocol udp; port [ snmp snmptrap ]; } then accept; } term ALLOW_TACACS { from { protocol tcp; port tacacs; } then accept; } term ALLOW_NETFLOW { from { protocol udp; port [ 2055 9995 9996 ]; } then accept; } term DENY_OTHER { then { syslog; discard; } } } } If an IPsec tunnel is used, verify that the only authorized management traffic is transported to the NOC by reviewing the filter referencing the applicable security association as shown int example below. firewall { family inet { … … … filter MGMT_TRAFFIC { term ALLOW_SNMP { from { protocol udp; port [ snmp snmptrap ]; } then ipsec-sa IPSEC_SA_MGMT; } term ALLOW_TACACS { from { protocol tcp; port tacacs; } then ipsec-sa IPSEC_SA_MGMT; } term ALLOW_NETFLOW { from { protocol udp; port [ 2055 9995 9996 ]; } then ipsec-sa IPSEC_SA_MGMT; } term OTHER { then accept; } } } If traffic other than authorized management traffic is permitted through the OOBM interface or IPsec tunnel, this is a finding.