[xubuntu-users] Ubuntu Networking problem

[sreenivas desamsetti]

Respected Sir/Madam,

I am using HP Proliant DL 145 G2 with AMD Opteron server.
It is giving internet problem after changing the mother board.
This server is in lan. Whenever I used to connect I cannot get dirctly
I have to change the back side port. then it gets connected.
For example today I connected to port1, after restartig/starting the machine
I have to change the port then its gets connected to internet/lan.

When I check if config it is showing

*********************************************************************
mm5 at node2:~$ ifconfig
eth2      Link encap:Ethernet  HWaddr 00:17:A4:FF:77:B5
          inet addr:192.168.1.80  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::217:a4ff:feff:77b5/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:492 (492.0 b)
          Interrupt:233

eth3      Link encap:Ethernet  HWaddr 00:17:A4:FF:77:B4
          inet addr:192.168.1.80  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::217:a4ff:feff:77b4/64 Scope:Link
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:293 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:38783 (37.8 KiB)  TX bytes:620 (620.0 b)
          Interrupt:50

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:25 errors:0 dropped:0 overruns:0 frame:0
          TX packets:25 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2040 (1.9 KiB)  TX bytes:2040 (1.9 KiB)
*********************************************************************

But when I see the /etc/iftab file it shows

eth0 mac 00:13:21:b5:31:6f arp 1
eth1 mac 00:13:21:b5:31:70 arp 1
*********************************************************************

How can I solve the problem
Please kindly suggest me to solve the problem
Thanking you
Sincerely
D. Srinivas
 Desamsetti Srinivas
Research Scholar
Department of Meteorology and Oceanography
Andhra University
Visakhapatnam - 530 003
91 9948530618 (M)
sreeds82 at yahoo.com
sreeds82 at rediffmail.com


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