Detections
Analytics
OS10-RTR-001020 - The Dell OS10 Router must be configured to advertise a hop limit of at least 32 in Router Advertisement messages for IPv6 stateless auto-configuration deployments.
Information
The Neighbor Discovery protocol allows a hop limit value to be advertised by routers in a Router Advertisement message being used by hosts instead of the standardized default value. If a very small value was configured and advertised to hosts on the LAN segment, communications would fail due to the hop limit reaching zero before the packets sent by a host reached its destination.Solution
Configure each IPv6 interface to advertise a hop limit of at least 32 in Router Advertisement messages as in the example below.OS10(config)# interface ethernet 1/1/4
OS10(conf-if-eth1/1/4)# ipv6 nd send-ra
OS10(conf-if-eth1/1/4)# ipv6 nd hop-limit 32
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Dell_OS10_Switch_Y24M12_STIG.zip
Item Details
Audit Name: DISA Dell OS10 Switch Router STIG v1r1
Category: CONFIGURATION MANAGEMENT
References: 800-53|CM-6b., CAT|III, CCI|CCI-000366, Rule-ID|SV-269902r1052091_rule, STIG-ID|OS10-RTR-001020, Vuln-ID|V-269902
Plugin: Dell_OS10
Control ID: 542bc1d1299ae403ff7c0f4a90db6519e9284dd69c80fb59f473cbff7067e019