Netgear XCM8806 Chassis User Manual - Page 765
Peer Authentication, Policy Filters, SA Request Processing
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NETGEAR 8800 User Manual Peer Authentication MSDP supports TCP MD5 authentication (RFC 2385) to secure control messages between MSDP peers. You must configure a secret password for an MSDP peer session to enable TCP MD5 authentication. When a password is configured, MSDP receives only authenticated MSDP messages from its peers. All MSDP messages that fail TCP MD5 authentication are dropped. To configure TCP MD5 authentication on an MSDP peer, use the following command: configure msdp peer [ | all] password [none | {encrypted} ] {vr } To remove the password, use the following command: configure msdp peer {all | } password none The password displays in encrypted format and cannot be seen as simple text. Additionally, the password is saved in encrypted format. To display the password in encrypted format, use the following command: show msdp [peer {detail} | {peer} ] {vr } Policy Filters You can configure a policy filter to control the flow of SA messages going to or coming from an MSDP peer. For example, policy filters can help mitigate state explosion during denial of service (DoS) or other attacks by limiting what is propagated to other domains using MSDP. To configure an incoming or outgoing policy filter for SA messages, use the following command: configure msdp peer [ | all] sa-filter [in | out] [ | none] {vr } To remove a policy filter for SA messages, use the none keyword: configure msdp [{peer} | peer all] sa-filter [in | out] none To verify that a policy filter is configured on an MSDP peer, use the following command: show msdp [peer {detail} | {peer} ] {vr } SA Request Processing You can configure the router to accept or reject SA request messages from a specified MSDP peer or all peers. If an SA request filter is specified, only SA request messages from those groups permitted are accepted. All others are ignored. To configure the router to accept SA request messages from a specified MSDP peer or all peers, use the following command: enable msdp [{peer} | peer all] process-sa-request {sa-request-filter } {vr } Chapter 29. MSDP | 765
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