Hi..my data center is in location x and person accessing it on Y over wan.Server has linux RHEL 6.2 OS and has 4 nic card with their different ip(Ip1,Ip2,Ip3 & Ip4),netmask and gateway (gw1 to gw4). Person from Y is able to ping gateway gw1 to gw4. When he tried to ping ip , he is able to ping Ip1.
Do i need to define default gateway for all ip? How shall i configure default gateway for rest of IP's?
INTERFACE IP Gateway Subnet Remarks
ce0 192.12.80.1 192.12.80.254 255.255.255.0
ce0:1 192.12.80.2 192.12.80.254 255.255.255.0 It is virtual IP
ce1 192.12.81.5 192.12.80.126 255.255.255.128
ce2 192.12.83.4 192.12.80.254 255..255.255.192
ce3 192.168.176.1 192.168.176.254 255.255.255.0
Pls find below details as required.
[root@NORTH01 ~]# ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:1A:64
3:FD:54
inet addr:192.12.80.1 Bcast:10.2.180.255 Mask:255.255.255.0
inet6 addr: fe80::21a:64ff:fed3:fd54/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:10955 errors:0 dropped:0 overruns:0 frame:0
TX packets:4868 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3273759 (3.1 MiB) TX bytes:1554244 (1.4 MiB)
Interrupt:16 Memory:ce000000-ce012800
eth1 Link encap:Ethernet HWaddr 00:1A:64
3:FD:56
inet addr:192.12.81.5 Bcast:10.2.181.127 Mask:255.255.255.128
inet6 addr: fe80::21a:64ff:fed3:fd56/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:6760 errors:0 dropped:0 overruns:0 frame:0
TX packets:5464 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:7758932 (7.3 MiB) TX bytes:522470 (510.2 KiB)
Interrupt:17 Memory:ca000000-ca012800
eth2 Link encap:Ethernet HWaddr 00:15:17:78:5F:9E
inet addr:192.12.83.4 Bcast:10.2.181.191 Mask:255.255.255.192
inet6 addr: fe80::215:17ff:fe78:5f9e/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:4458 errors:0 dropped:0 overruns:0 frame:0
TX packets:3930 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4428694 (4.2 MiB) TX bytes:365910 (357.3 KiB)
Interrupt:16 Memory:c7ee0000-c7f00000
eth3 Link encap:Ethernet HWaddr 00:15:17:78:5F:9F
inet addr:192.168.176.1 Bcast:192.168.176.255 Mask:255.255.255.0
inet6 addr: fe80::215:17ff:fe78:5f9f/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3634 errors:0 dropped:0 overruns:0 frame:0
TX packets:3558 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:896806 (875.7 KiB) TX bytes:896716 (875.6 KiB)
Interrupt:17 Memory:c7ea0000-c7ec0000
eth4 Link encap:Ethernet HWaddr 00:15:17:78:61:94
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:17 Memory:c5fe0000-c6000000
eth5 Link encap:Ethernet HWaddr 00:15:17:78:61:95
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:18 Memory:c5fa0000-c5fc0000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:3755 errors:0 dropped:0 overruns:0 frame:0
TX packets:3755 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1096013 (1.0 MiB) TX bytes:1096013 (1.0 MiB)
[root@NORTH01 ~]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.2.181.128 0.0.0.0 255.255.255.192 U 0 0 0 eth2
10.2.181.0 0.0.0.0 255.255.255.128 U 0 0 0 eth1
192.168.176.0 0.0.0.0 255.255.255.0 U 0 0 0 eth3
10.2.180.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 1002 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 1003 0 0 eth1
169.254.0.0 0.0.0.0 255.255.0.0 U 1004 0 0 eth2
169.254.0.0 0.0.0.0 255.255.0.0 U 1005 0 0 eth3
0.0.0.0 192.12.80.254 0.0.0.0 UG 0 0 0 eth0
[root@NORTH01 ~]#
[root@NORTH01 ~]# netstat -nr
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
10.2.181.128 0.0.0.0 255.255.255.192 U 0 0 0 eth2
10.2.181.0 0.0.0.0 255.255.255.128 U 0 0 0 eth1
192.168.176.0 0.0.0.0 255.255.255.0 U 0 0 0 eth3
10.2.180.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth1
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth2
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth3
0.0.0.0 192.12.80.254 0.0.0.0 UG 0 0 0 eth0
Thanks !!