Hard hetwork / interface troubleshooting

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Operating Systems AIX Hard hetwork / interface troubleshooting
# 1  
Old 10-26-2009
Hard hetwork / interface troubleshooting

I can't make the network connection. The cable and hub should be fine since they are working on other systems. I've used 'mktcpip' as well as 'smit tcpip' to configure the interface, and was able to ping the system itself, but I can not ping the gateway - no response. After reboot, the IP disappears from the interface. Here are some output. Please help. Thank you!

root@aix# ifconfig -a
        inet netmask 0xff000000 broadcast
        inet6 ::1/0
         tcp_sendspace 131072 tcp_recvspace 131072 rfc1323 1

root@aix# entstat en0
Device Type: IBM 10/100 Mbps Ethernet PCI Adapter (23100020)
Hardware Address: 00:06:29:c3:41:c5
Elapsed Time: 0 days 0 hours 0 minutes 41 seconds
Transmit Statistics:                          Receive Statistics:
--------------------                          -------------------
Packets: 1                                    Packets: 0
Bytes: 590                                    Bytes: 0
Interrupts: 0                                 Interrupts: 0
Transmit Errors: 0                            Receive Errors: 0
Packets Dropped: 0                            Packets Dropped: 0
                                              Bad Packets: 0
Max Packets on S/W Transmit Queue: 1
S/W Transmit Queue Overflow: 0
Current S/W+H/W Transmit Queue Length: 1
Broadcast Packets: 1                          Broadcast Packets: 0
Multicast Packets: 0                          Multicast Packets: 0
No Carrier Sense: 0                           CRC Errors: 0
DMA Underrun: 0                               DMA Overrun: 0
Lost CTS Errors: 0                            Alignment Errors: 0
Max Collision Errors: 0                       No Resource Errors: 0
Late Collision Errors: 0                      Receive Collision Errors: 0
Deferred: 0                                   Packet Too Short Errors: 0
SQE Test: 0                                   Packet Too Long Errors: 0
Timeout Errors: 0                             Packets Discarded by Adapter: 0
Single Collision Count: 0                     Receiver Start Count: 0
Multiple Collision Count: 0
Current HW Transmit Queue Length: 1
General Statistics:
No mbuf Errors: 0
Adapter Reset Count: 0
Adapter Data Rate: 200
Driver Flags: Up Broadcast Running
        Simplex AlternateAddress 64BitSupport
        PrivateSegment DataRateSet

root@aix# smit tcpip
Minimum Configuration & Startup
 To Delete existing configuration data, please use Further Configuration menus
Type or select values in entry fields.
Press Enter AFTER making all desired changes.
[TOP]                                                   [Entry Fields]
* HOSTNAME                                           [aix]
* Internet ADDRESS (dotted decimal)                  []
  Network MASK (dotted decimal)                      []
* Network INTERFACE                                   en0
           Internet ADDRESS (dotted decimal)         []
           DOMAIN Name                               [whatever.com]
  Default Gateway
       Address (dotted decimal or symbolic name)     []
       Cost                                          [0]                      #
       Do Active Dead Gateway Detection?              no

---------- Post updated at 01:00 PM ---------- Previous update was at 12:41 PM ----------

Update: I've made the connection after en1 has been configured.

The next question is how to troubleshoot the en0 issue. How can I find if the interface is broken or not?


Last edited by pludi; 10-26-2009 at 02:17 PM.. Reason: code tags, please...
# 2  
Old 10-27-2009
1. Any DHCP interfering with your config?
2. Remember to enable the "START Now" option in smit when configuring interfaces.
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