The following information describes router configuration guidelines:
A system interface and associated IP address should be specified.
Boot options file (BOF) parameters must be configured before configuring router parameters.
On 7210 SAS-D and 7210 SAS-Dxp IPv4 and IPv6 route table lookup entries are shared. Before adding routes for IPv6 destinations, route entries in the routed lookup table needs to be allocated for IPv6 addresses. This can be done using the CLI command config>system>resource-profile>max-ipv6-routes. This command allocates route entries for /64 IPv6 prefix route lookups. The system does not allocate any IPv6 route entries by default and user needs to allocate some resources before using IPv6. For the command to take effect the node must be rebooted after making the change. Please see the following example and the 7210 SAS-D, Dxp, K 2F1C2T, K 2F6C4T, K 3SFP+ 8C Basic System Configuration Guide for more information.
On 7210 SAS-D, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C, a separate route table (or a block in the route table) is used for IPv6 /128-bit prefix route lookup. A limited amount of IPv6 /128 prefixes route lookup entries is supported. The software enables lookups in this table by default (that is, no user configuration is required to enable IPv6 /128-bit route lookup).
On 7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C, IPv6 interfaces are allowed to be created without allocating IPv6 route entries. With this only IPv6 hosts on the same subnet are reachable.