[CentOS] need help on second Ethernet port (eth1) point to point connect

Robert Moskowitz rgm at htt-consult.com
Wed Aug 29 15:55:44 UTC 2007



mcclnx mcc wrote:
> setup IP address as "192.168.xxx.xxx" does NOT work. 
> Someone say I need use "crossover" type of cable, but
> I don't have.  I put a switch and coneect cable from
> each PC and it work fine.
>   
Crossover cables or crossover connectors (those little white connectors 
that can be used to connect two RJ45 cables together) can be had at any 
'serious' PC store. Also online from many many sites.

I always carry a crossover cable in my travel bag.
> Thanks.
>
>
>  
> --- gnulinux <gnulinux at comcast.net> 說:
>
>   
>> mcclnx mcc wrote:
>>     
>>> I have two DELL servers with two Ethernet ports in
>>>       
>> it.
>>     
>>>  Bith servers have CENTOS 4.5 installed.  First
>>> Ethernet port connect to public Ethernet line and
>>>       
>> work
>>     
>>> correctly.  Second Ethernet port I connect
>>> point-to-point as private Ethernet (cable direct
>>> connect without router or switch).  Private
>>>       
>> Ethernet
>>     
>>> use IP asddress 1.1.1.1 and 1.1.1.2.
>>>
>>> I check "ifconfig -a" and both eth0 and eth1 are
>>>       
>> up
>>     
>>> and active.  when I tried to ping another server
>>>       
>> use
>>     
>>> second port (private) and no response.  Does
>>>       
>> anything
>>     
>>> I configure wrong?
>>>
>>> Thanks.
>>>
>>> ========   info   ===  
>>>
>>>  %ifconfig -a
>>> eth0      Link encap:Ethernet  HWaddr
>>> 00:08:74:EA:54:64  
>>>           inet addr:172.29.86.15 
>>>       
>> Bcast:172.29.85.255 
>>     
>>> Mask:255.255.255.0
>>>           inet6 addr: fe80::208:74ff:feea:5464/64
>>> Scope:Link
>>>           UP BROADCAST RUNNING MULTICAST  MTU:1500
>>>       
>>> Metric:1
>>>           RX packets:471 errors:0 dropped:0
>>>       
>> overruns:0
>>     
>>> frame:0
>>>           TX packets:91 errors:0 dropped:0
>>>       
>> overruns:0
>>     
>>> carrier:0
>>>           collisions:0 txqueuelen:0 
>>>           RX bytes:65669 (64.1 KiB)  TX
>>>       
>> bytes:11847
>>     
>>> (11.5 KiB)
>>>
>>> eth1      Link encap:Ethernet  HWaddr
>>> 00:0E:2E:C8:B9:80  
>>>           inet addr:1.1.1.1  Bcast:1.1.1.255 
>>> Mask:255.255.255.0
>>>           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 Base address:0x4c00 
>>>
>>> %ping 1.1.1.2
>>> PING 1.1.1.2 (1.1.1.2) 56(84) bytes of data.
>>> >From 1.1.1.1 icmp_seq=1 Destination Host
>>>       
>> Unreachable
>>     
>>> >From 1.1.1.1 icmp_seq=2 Destination Host
>>>       
>> Unreachable
>>     
>>> >From 1.1.1.1 icmp_seq=3 Destination Host
>>>       
>> Unreachable
>>     
>>> --- 1.1.1.2 ping statistics ---
>>> 4 packets transmitted, 0 received, +3 errors, 100%
>>> packet loss, time 3015ms
>>> , pipe 3
>>>
>>>
>>> %telnet 1.1.1.2
>>> Trying 1.1.1.2...
>>> telnet: connect to address 1.1.1.2: No route to
>>>       
>> host
>>     
>>>   
>>>       
>> Try a private network IP 192.168.xxx.xxx? Right
>> ether cable, straight?
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>> CentOS at centos.org
>> http://lists.centos.org/mailman/listinfo/centos
>>
>>     
>
>
>
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