Lab 9-10: OSPF Point-to-Point Lab
For this special setup, we combine the topologies of Figure 9-3 and Figure 4-1 (see Chapter 4, "Gateway WAN/Metro Interfaces") to include a point-to-point link between callisto and castor featuring Cisco HDLC as a Layer 2 line protocol. This point-to-point link is assigned to the backbone OSPF area.
The configuration and output of Examples 9-29 and 9-30 focus on callisto and castor. The highlighted configuration emphasizes the point-to-point configuration aspect and the /30 link network added to the OSPF router configuration.
Example 9-29. Castor OSPF Configuration with Point-to-Point Link
castor-ospfd# show running-config Current configuration: ! hostname castor-ospfd password 8 4DwwIFdKLWvU. enable password 8 dV8x4MhxDAuaw log file /var/log/ospfd.log service advanced-vty service password-encryption ! interface xl0 ip ospf message-digest-key 1 md5 zebra ! interface ed0 ip ospf message-digest-key 1 md5 zebra ! interface lp0 ip ospf network point-to-point ! interface sl0 ip ospf network point-to-point ! interface sl1 ip ospf network point-to-point ! interface ds0 ! interface stf0 ! interface faith0 ! interface vlan0 ! interface vlan1 ! interface lo0 ! interface ppp0 ip ospf network point-to-point ! interface ppp1 ip ospf network point-to-point ! interface vlan8 ip ospf message-digest-key 1 md5 zebra ! interface lo1 ! interface wpachdlc0 ip ospf network point-to-point ! router ospf ospf router-id 192.168.2.7 compatible rfc1583 redistribute connected redistribute static network 192.168.2.0/24 area 0 network 192.168.7.0/24 area 0 network 192.168.80.0/24 area 0 network 192.168.99.0/30 area 0 area 0 authentication message-digest capability opaque ! access-list 1 remark vty-protection access-list 1 permit 127.0.0.1 access-list 1 permit 192.168.1.0 0.0.0.255 ! line vty access-class 1 exec-timeout 15 0 ! end
Example 9-30. Callisto OSPF Configuration with Point-to-Point Link
callisto-ospfd# show running-config Current configuration: ! hostname callisto-ospfd password 8 m6eyKycFMHniQ enable password 8 bjYlnA9YLBWyM log file /var/log/ospfd.log service advanced-vty service password-encryption ! interface lo ! interface eth0 ! interface eth1 ip ospf message-digest-key 1 md5 zebra ! interface ipsec0 ! interface ipsec1 ! interface ipsec2 ! interface ipsec3 ! interface eth1:1 ip ospf message-digest-key 1 md5 zebra ! interface lo1 ! interface wp1chdlc ip ospf network point-to-point ! router ospf ospf router-id 192.168.1.1 compatible rfc1583 redistribute connected redistribute static network 192.168.1.0/24 area 0 network 192.168.14.0/24 area 5 network 192.168.45.0/24 area 0 network 192.168.99.0/30 area 0 area 0.0.0.0 authentication message-digest area 5 virtual-link 192.168.201.4 capability opaque ! access-list 1 remark vty-protection access-list 1 permit 127.0.0.1 access-list 1 permit 192.168.1.0 0.0.0.255 ! line vty access-class 1 exec-timeout 0 0 ! end
Exercise 9-4: Dynamic Routing in Point-to-Multipoint Scenarios
Connect several WAN NICs to a router with Frame Relay switching enabled. Configure a point-to-multipoint (hub-and-spoke) topology with the hub injecting a default route into the Frame Relay network.
