Adding IPv6 addresses to IPAM
IPAM lets you add IPv6 (Internet Protocol version 6) sites to subnets to be monitored. Use the Discover IPs functionality to automatically add existing IP addresses to subnets.
IPv6 addresses can be grouped to assist with network organization. To leverage the amount of addresses available, as well as the organizational features inherent with the implementation, create a logical address plan. For example, designate two nibbles (a nibble is 4 bits or 1 hex character) for your country code. This is 2^8, or 256, possibilities for unique countries. Next, designate another nibble for state or location. Finally, designate bits for site, building, and floor.
- Go to My Dashboards > IP Addresses > Manage Subnets & IP Addresses.
- Click Add and select IPv6 Global Prefix.
- Create an IPv6 Global site. For this you require a name and a global prefix address.
- Select this site, click Add, and select IPv6 Site.
- Add your IPv6 sites.
- Add a building and floors.
IPAM IPv6 address discovery uses Neighborhood Discovery Protocol (NDP). Information is obtained from routers based on the following MIBs and OIDs:
- IPv6 MIB, OID 188.8.131.52.184.108.40.206.12.1.2 (ipv6NetToMediaTablePhysicalAddress)
- IP MIB, OID 220.127.116.11.18.104.22.168 (ipNetToPhysicalTable)
- ipv6NetToMediaValid - 22.214.171.124.126.96.36.199.12.1.6
- Cisco proprietary CISCO-IETF-IP-MIB , OID 188.8.131.52.184.108.40.206.220.127.116.11 (cInetNetToMediaTable)
For troubleshooting, verify with these device OIDs.
- Click Discover IPs to access this functionality from the IPv6 subnet(s) or IPv6 Global prefix menus.
- Select the routers to scan.
The discovery populates all discovered IPs under their IPv6 subnet(s) in the selection. All found IPs that do not belong to a selected subnet are discarded. IPAM uses your SNMP credentials to access the selected routers.