Symptom
+ IPv6 source-route knob default behavior of Nexus 7000 and how to disable is missing from Nexus 7000 Configuration Guides
Conditions
+ All Nexus 7000s in any NXOS version
Further Problem Description
The following will be added to the N7K IPv6 Unicast Routing Guides:
IPv6 source routing is enabled by default on the Nexus 7000 series. Additionally, per RFC5095, processing of routing header with type 0 (rh0) is disabled by default. To disable IPv6 source routing, issue the hidden CLI `[ no ] ipv6 source-route [ rh0 ]`
The impacted links are:
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/6_x/nx-os/unicast/configuration/guide/b-7k-Cisco-Nexus-7000-Series-NX-OS-Unicast-Routing-Configuration-Guide-Release-6x/n7k_unicast_config_ipv6.html
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/nx-os/unicast/configuration/guide/b-7k-Cisco-Nexus-7000-Series-NX-OS-Unicast-Routing-Configuration-Guide-Release/n7k_unicast_config_ipv6.html
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus7000/sw/unicast/config/cisco_nexus7000_unicast_routing_config_guide_8x/configuring_ipv6.html