Juniper E Series

Installing Software When a Firewall Does Not Exist ! 179
Appendix B: Installing JUNOSe Software
2. Determine the port number of the module.
3. Determine whether the interface already has an IP address.
host1#show ip interface fastEthernet 6/0
If the interface already has an IP address, go to Task 5. Otherwise, proceed with
step 4.
4. Set an IP address on the interface.
host1#configure
Configuring from terminal or file [terminal]?
Enter configuration commands, one per line. End with CNTL/Z.
host1(config)#interface fastEthernet 6/0
host1(config-if)#ip address ipAddress [ mask ]
5. Press <CTRL-Z> to return to Privileged Exec mode.
Task 5: Configure Access to the Network Host
To configure access to the network host:
1. Use the ping command to determine whether the E-series router can reach the
network host.
host1#ping ipAddress
If the E-series router can reach the network host, go to the next section.
Otherwise, go to step 2.
2. Determine whether a route exists between the E-series router and the network
host.
host1#show ip route
If the appropriate route is displayed, go to step 4. Otherwise, proceed with
step 3.
3. Configure a route to reach the network host.
host1#configure
Configuring from terminal or file [terminal]?
Enter configuration commands, one per line. End with CNTL/Z.
host1(config)#ip route ipNetwork networkMask ipNextHop
4. Press <CTRL-Z> to return to Privileged Exec mode.
5. Determine whether the E-series router has been configured to recognize the
network host.
host1#show host
NOTE: If an IP interface is not configured, the message “Invalid interface” appears.