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Securing-Optimizing-RH-Linux-1_2_99
Comments and suggestions concerning this book should be mailed to gmourani@videotron.ca © Copyright 1999-2000 Gerhard Mourani and Open Network Architecture ® 99 inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1 RX packets:1295 errors:0 dropped:0 overruns:0 frame:0 TX packets:1163 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100   Interrupt:5 Base address:0xa320 lo Link encap:Local Loopback    inet addr:127.0.0.1  Mask:255.0.0.0 UP LOOPBACK RUNNING  MTU:3924  Metric:1 RX packets:139 errors:0 dropped:0 overruns:0 frame:0 TX packets:139 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 NOTE: It is important to note that the setting configured with the  ifconfig toll for your network devices, will not survive a reboot. · To assign the default gateway for 208.164.186.1 use the command: [root@deep /]# route add default gw 208.164.186.1 In this example, the default route is set up to go to 208.164.186.1, your router. Verify that you can reach your hosts. Choose a host from your network, for instance 208.164.186.1. · To verify that you can reach your hosts, use the command: [root@deep /]# ping 208.164.186.1 The output should look something like this: [root@deep networking]# ping 208.164.186.1 PING 208.164.186.1 (208.164.186.1) from 208.164.186.2 : 56 data bytes 64 bytes from 208.164.186.2: icmp_seq=0 ttl=128 time=1.0 ms 64 bytes from 208.164.186.2: icmp_seq=1 ttl=128 time=1.0 ms 64 bytes from 208.164.186.2: icmp_seq=2 ttl=128 time=1.0 ms 64 bytes from 208.164.186.2: icmp_seq=3 ttl=128 time=1.0 ms --- 208.164.186.1 ping statistics --- 4 packets transmitted, 4 packets received, 0% packet loss round-trip min/avg/max = 1.0/1.0/1.0 ms You should now display the routing information with the command  route to see if both hosts have the correct routing entry: · To display the routing information, use the command: [root@deep /]# route -n The output should look something like this: Kernel IP routing table Destination Gateway Genmask Flags Metric Ref   Use Iface 208.164.186.2 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 208.164.186.0 208.164.186.2 255.255.255.0 UG 0 0 0 eth0 208.164.186.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo