• The IPv4 routing is supported only on BDI interfaces, and not supported on physical interfaces (1G, 10G) and port channel interfaces.

• IP addresses cannot be configured on the physical and the port channel interface.

• The maximum number of IPv4 routes that can be learnt is 12,000.

• BDI level IP ACLs are not supported.

• VRRP and HSRP protocols are not supported.

  Note	Effective Cisco IOS XE Gibraltar 16.12.1 and later, VRRP and HSRP protocols are supported on the Cisco NCS 520 router.

• The maximum number of VRF lite sessions supported are 128.

• BDI statistics is supported only for CPU bounded traffic, for data traffic going over BDI interface will be shown on respective underlying EFP statistics.

• For adding static ARP, it is mandatory that you specify the static MAC address. For example, to configure static ARP, specify the following commands:

  • arp<ip-add> <mac-add> arpa under the config mode.

    mac static address <mac> under the config-if-srv mode.

• The router sends Gratuitous ARP only whenb the BDI interface is brought up, and processes the Gratuitous ARP if it is of the request type.

• IPv6 is not supported.

  Note	Effective Cisco IOS XE Dublin 17.11.1, IPv6 configurations are supported on the management interface.

  Starting from Cisco IOS XE Dublin 17.12.1, the IPv6 configuration for access-list, neighbor, route, and unicast routing are supported in the global configuration mode.

• IPv4 multicast is not supported.

• IPv4 MIBs are not supported.

• IP-FRR, LFA, segment routing, and policy-based routing are not supported.

• BFD is not supported.

• IP unnumbered is not supported.

• MPLS is not supported.

To configure IP address on BDI interface, enter the following commands:

interface BDI10
ip address 192.0.2.0 255.255.255.0
end

Use the show ip route and show ip route summary commands to verify IP address on BDI interface:

router#show ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2, m - OMP
       n - NAT, Ni - NAT inside, No - NAT outside, Nd - NAT DIA
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       H - NHRP, G - NHRP registered, g - NHRP registration summary
       o - ODR, P - periodic downloaded static route, l - LISP
       a - application route
       + - replicated route, % - next hop override, p - overrides from PfR

Gateway of last resort is not set

      10.0.0.0/32 is subnetted, 1 subnets
O        10.0.0.1 [110/2] via 192.168.13.4, 1d01h, BDI210
                 [110/2] via 192.0.2.4, 1d01h, BDI111
      10.0.0.1/32 is subnetted, 1 subnets
C        10.6.6.6 is directly connected, Loopback0
      10.0.0.2/32 is subnetted, 1 subnets
O        10.8.8.8 [110/2] via 192.168.13.1, 1d01h, BDI210
                 [110/2] via 192.0.2.1, 1d00h, BDI111
      10.0.0.0/32 is subnetted, 1 subnets
O        192.0.2.0 [110/2] via 192.168.13.2, 03:20:31, BDI210
                     [110/2] via 192.0.2.2, 03:20:29, BDI111
      192.0.2.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.0.2.0/24 is directly connected, BDI111
L        192.0.2.3/32 is directly connected, BDI111
      192.168.13.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.13.0/24 is directly connected, BDI210
L        192.168.13.3/32 is directly connected, BDI210

router#show ip route summary
IP routing table name is default (0x0)
IP routing table maximum-paths is 32
Route Source    Networks    Subnets     Replicates  Overhead    Memory (bytes)
application     0           0           0           0           0
connected       0           5           0           560         1560
static          0           0           0           0           0
ospf 30         0           3           0           576         948
  Intra-area: 3 Inter-area: 0 External-1: 0 External-2: 0
  NSSA External-1: 0 NSSA External-2: 0
isis 1          0           0           0           0           0
  Level 1: 0 Level 2: 0 Inter-area: 0
bgp 1           0           0           0           0           0
  External: 0 Internal: 0 Local: 0
internal        6                                               2792
Total           6           8           0           1136        5300