Reference Guide
• When you congure encryption at the area level, both IPsec encryption and authentication are enabled. You
cannot congure encryption if you have already congured an IPsec area authentication (area ospf
authentication ipsec). To congure encryption, you must rst delete the authentication policy.
• All OSPFv3 routers in the area must share the same encryption key to decrypt information. Only a non-
encrypted key is supported. Required lengths of the non-encrypted key are: 3DES — 48 hex digits; DES — 16
hex digits; AES-CBC — 32 hex digits for AES-128 and 48 hex digits for AES-192.
• All OSPFv3 routers in the area must share the same authentication key to exchange information. Only a non-
encrypted key is supported. For MD5 authentication, the non-encrypted key must be 32 plain hex digits. For
SHA-1 authentication, the non-encrypted key must be 40 hex digits. An encrypted key is not supported.
Example
OS10(config-router-ospfv3-100)# area 1 encryption ipsec spi 401 esp des
1234567812345678 md5
12345678123456781234567812345678
Supported Releases 10.4.0E(R1) or later
area stub
Denes an area as the OSPF stub area.
Syntax
area area-id stub [no-summary]
Parameters
• area-id—Set the OSPFv3 area ID as an IP address (A.B.C.D) or number (1 to 65535).
• no-summary—(Optional) Prevents an area border router from sending summary link advertisements into the
stub area.
Default Not congured
Command Mode ROUTER-OSPFv3
Usage Information The no version of this command deletes a stub area.
Example
OS10(config)# router ospfv3 10
OS10(conf-router-ospfv3-10)# area 10.10.1.5 stub
Supported Releases 10.3.0E or later
auto-cost reference-bandwidth
Calculates default metrics for the interface based on the congured auto-cost reference bandwidth value.
Syntax
auto-cost reference-bandwidth value
Parameters value — Enter the reference bandwidth value to calculate the OSPFv3 interface cost in megabits per second (1
to 4294967).
Default 100000
Command Mode ROUTER-OSPFv3
Usage Information The value set by the ipv6 ospf cost command in INTERFACE mode overrides the cost resulting from the
auto-cost command. The no version of this command resets the value to the default.
Example
OS10(config)# router ospfv3 100
OS10(config-router-ospfv3-100)# auto-cost reference-bandwidth 150
Supported Releases 10.3.0E or later
386 Layer 3