Cisco IOS XR Router RTR Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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The Cisco multicast Rendezvous Point (RP) must be configured to rate limit the number of Protocol Independent Multicast (PIM) Register messages.
<VulnDiscussion>When a new source starts transmitting in a PIM Sparse Mode network, the Designated Router (DR) will encapsulate the multicast...Rule Medium Severity -
SRG-NET-000364-RTR-000114
<GroupDescription></GroupDescription>Group -
The Cisco multicast Designated Router (DR) must be configured to filter the Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) Report messages to allow hosts to join only multicast groups that have been approved by the organization.
<VulnDiscussion>Real-time multicast traffic can entail multiple large flows of data. Large unicast flows tend to be fairly isolated (i.e., so...Rule Low Severity -
SRG-NET-000364-RTR-000115
<GroupDescription></GroupDescription>Group -
The Cisco multicast Designated Router (DR) must be configured to filter the Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) Report messages to allow hosts to join a multicast group only from sources that have been approved by the organization.
<VulnDiscussion>Real-time multicast traffic can entail multiple large flows of data. Large unicast flows tend to be fairly isolated (i.e., so...Rule Medium Severity -
SRG-NET-000362-RTR-000122
<GroupDescription></GroupDescription>Group -
The Cisco multicast Designated Router (DR) must be configured to limit the number of mroute states resulting from Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) Host Membership Reports.
<VulnDiscussion>The current multicast paradigm can let any host join any multicast group at any time by sending an IGMP or MLD membership rep...Rule Medium Severity -
SRG-NET-000362-RTR-000123
<GroupDescription></GroupDescription>Group -
The Cisco multicast Designated Router (DR) must be configured to set the shortest-path tree (SPT) threshold to infinity to minimalize source-group (S, G) state within the multicast topology where Any Source Multicast (ASM) is deployed.
<VulnDiscussion>ASM can have many sources for the same groups (many-to-many). For many receivers, the path via the RP may not be ideal compar...Rule Medium Severity -
SRG-NET-000364-RTR-000116
<GroupDescription></GroupDescription>Group
Node 2
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