[ale] network problem

[ChangingLINKS.com]

arp worked on both machines.

Drew

On Monday 17 February 2003 9:27 am, Dow Hurst wrote:
> Run an "arp -a" on both boxes after trying from both boxes to ping each 
> other.  If you don't have ARP entries for each machine in each others 
> arp tables it may show a local switch or hub incompatibility with your 
> bonding situation.  This is a lower level diagnostic for seeing if your 
> MAC addresses are propagating between these two machines.  They should 
> register each other's MAC address so the icmp packets will be passed to 
> the right machine on your local LAN by the switch in between them.  Or, 
> if you have a hub then the machines will just grab the packets addressed 
> to them up off the wire.  If the MAC addresses are not propagating then 
> you have a interface configuration problem maybe at the driver level 
> that might be able to be corrected by adding an option to your driver 
> when it is loaded into the kernel.  An example would be putting an 
> option on a 3Com driver to tell it to be either full duplex or half 
> duplex.  So finding out what the options are for each of your cards and 
> the bonding driver would be handy at that point.  Try the arp -a after 
> pinging and let us know if you have those addresses registered properly.
> Dow
> 
> 
> ChangingLINKS.com wrote:
> 
> >This is the computer that worked with NFS and works perfectly. I have made 
no 
> >changes to it. The results below are for the client. The other was the 
server 
> >(with 2 nic cards).
> >
> >
> >eth0      Link encap:Ethernet  HWaddr 00:0A:E6:4D:45:A2
> >          inet addr:192.168.123.121  Bcast:192.168.123.255  
Mask:255.255.255.0
> >          inet6 addr: fe80::20a:e6ff:fe4d:45a2/10 Scope:Link
> >          UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1
> >          RX packets:605 errors:0 dropped:0 overruns:0 frame:0
> >          TX packets:466 errors:0 dropped:0 overruns:0 carrier:0
> >          collisions:0 txqueuelen:100
> >          RX bytes:602269 (588.1 Kb)  TX bytes:38820 (37.9 Kb)
> >          Interrupt:11 Base address:0xd400
> >
> >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:60 errors:0 dropped:0 overruns:0 frame:0
> >          TX packets:60 errors:0 dropped:0 overruns:0 carrier:0
> >          collisions:0 txqueuelen:0
> >          RX bytes:3912 (3.8 Kb)  TX bytes:3912 (3.8 Kb)
> >
> >sit0      Link encap:IPv6-in-IPv4
> >          NOARP  MTU:1480  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:0
> >          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
> >
> >Kernel IP routing table
> >Destination     Gateway         Genmask         Flags Metric Ref    Use 
Iface
> >192.168.123.0   0.0.0.0         255.255.255.0   U     0      0        0 
eth0
> >0.0.0.0         192.168.123.120 0.0.0.0         UG    0      0        0 
eth0
> >
> >
> >
> >On Saturday 15 February 2003 1:11 pm, John Wells wrote:
> >  
> >
> >>Post the output of running 'ifconfig -a' and 'route -n' on both machines.
> >>
> >>John
> >>
> >>ChangingLINKS.com said:
> >>    
> >>
> >>>I added two nics to my server.
> >>>
> >>>Now the clients cannot ping the server. The server cannot ping the
> >>>clients.  The server can ping yahoo, the clients can ping each other.
> >>>What do I do? I don't even know where to start. I ran a netstat -i, but
> >>>I  don't even know what I am looking at.
> >>>--
> >>>Wishing you Happiness, Joy and Laughter,
> >>>Drew Brown
> >>>http://www.ChangingLINKS.com
> >>>_______________________________________________
> >>>Ale mailing list
> >>>Ale at ale.org
> >>>http://www.ale.org/mailman/listinfo/ale
> >>>      
> >>>
> >>
> >>_______________________________________________
> >>Ale mailing list
> >>Ale at ale.org
> >>http://www.ale.org/mailman/listinfo/ale
> >>
> >>
> >>    
> >>
> >
> >  
> >
> 
> -- 
> __________________________________________________________
> Dow Hurst                  Office: 770-499-3428
> Systems Support Specialist    Fax: 770-423-6744
> 1000 Chastain Rd., Bldg. 12
> Chemistry Department SC428  Email:dhurst at kennesaw.edu
> Kennesaw State University         Dow.Hurst at mindspring.com
> Kennesaw, GA 30144
> *********************************
> *Computational Chemistry is fun!*
> *********************************
> 
> 
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> 

-- 
Wishing you Happiness, Joy and Laughter,
Drew Brown
http://www.ChangingLINKS.com
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