OSPF Version 2, as defined by IEEE RFC 2328 for IPv4, is broadly implemented in enterprise routers. IPv6 revisions to this standard are captured in the newer OSPF Version 3 (as defined in IEEE RFC 5340).

Configuration :

R2#sh ip int bri

Interface                  IP-Address      OK? Method Status                Protocol

FastEthernet0/0            ۱۹۲٫۱۶۸٫۳٫۱     YES manual up                    up

Serial1/0                  ۱۹۲٫۱۶۸٫۲٫۲     YES manual up                    up

Serial1/1                  unassigned      YES unset  administratively down down

Serial1/2                  unassigned      YES unset  administratively down down

Serial1/3                  unassigned      YES unset  administratively down down

R2#sh cdp nei

Capability Codes: R – Router, T – Trans Bridge, B – Source Route Bridge

                  S – Switch, H – Host, I – IGMP, r – Repeater

Device ID        Local Intrfce     Holdtme    Capability  Platform  Port ID

R1               Ser 1/0            ۱۴۸          R        ۷۲۰۶VXR   Ser 1/0

R2#sh cdp entry R1

————————-

Device ID: R1

Entry address(es):

  IP address: 192.168.2.1

Platform: Cisco 7206VXR,  Capabilities: Router

Interface: Serial1/0,  Port ID (outgoing port): Serial1/0

Holdtime : 138 sec

Version :

Cisco IOS Software, 7200 Software (C7200-JK9O3S-M), Version 12.4(19), RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2008 by Cisco Systems, Inc.

Compiled Sat 01-Mar-08 04:40 by prod_rel_team

advertisement version: 2

R2#ping 192.168.2.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.2.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 16/1

R2#sh ip route

Codes: 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

       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

       o – ODR, P – periodic downloaded static route

Gateway of last resort is not set

     ۱۹۲٫۱۶۸٫۴٫۰/۳۲ is subnetted, 1 subnets

C       ۱۹۲٫۱۶۸٫۴٫۱ is directly connected, Loopback1

     ۱۹۲٫۱۶۸٫۵٫۰/۳۲ is subnetted, 1 subnets

C       ۱۹۲٫۱۶۸٫۵٫۱ is directly connected, Loopback2

     ۱۹۲٫۱۶۸٫۶٫۰/۳۲ is subnetted, 1 subnets

C       ۱۹۲٫۱۶۸٫۶٫۱ is directly connected, Loopback3

O    ۱۹۲٫۱۶۸٫۱٫۰/۲۴ [۱۱۰/۶۵] via 192.168.2.1, 00:04:08, Serial1/0

C    ۱۹۲٫۱۶۸٫۲٫۰/۲۴ is directly connected, Serial1/0

C    ۱۹۲٫۱۶۸٫۳٫۰/۲۴ is directly connected, FastEthernet0/0

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