In Unraid Box#1 I have a 4 port 2.5 ethernet card directly connected to two other machines.  The purpose of this is a directly connected netowrk to each device for backups and Blueiris on the Win machine. Machine 1 is a Windows11 Blue Iris box and it works fine.  I am using 192.168.98.5 on Unraid1 and 98.11 on Windows. Both can ping.

 

The second connection is between 2 Unraid boxes and it is not working.  Unraid1 is connected via 97.5 and the Unraid 2 is connected via 97.11.  Ping from Unraid1 to 2 I get ' Destination Host Unreachable'.  Ping from Unraid 2 to 1 It just stalls and doesnt ping.  I checked the routes on both and they look fine.  Attaching the diags for both.  Unraid1 is Executor and Unraid2 is Venator.  

 

Thanks again!!

unraid2.zip Unraid1.zip

*bump please

On 1/17/2023 at 2:42 PM, Trackpads said:

Unraid1 is connected via 97.5

 

97.5 on Unraid #1 is eth4:

 

IFNAME[3]="eth4"
DESCRIPTION[3]="97.5"
PROTOCOL[3]="ipv4"
USE_DHCP[3]="no"
IPADDR[3]="192.168.97.5"

 

eth4 has no link:

 

Settings for eth4:
   
   
    Link detected: no

 

eth5 does.

 

 

Correct, on Unraid1 Eth5 is connected to the windows machine and works fine.  Eth4 is connected with a cable to Unraid2 and does not work.  The cable is there and link is connected.  Any reason why it cant see the other unraid but can see windows host?

When I try to ping unraid to unraid it just hangs, not errors:  

But on unraid1 I do get an error:

 

NIC is reporting no link, it will never work without a link detected.

I am at a loss, it has to be unraid.  I just swapped the cable going to the Windows machine on Eth5 and it still doesnt work.  Why would it work to a windows machine but not another unraid device? Cannot two unraid servers be directly connected? Do I need a crossover cable instead? 

Is it detecting a link now?

 

10 minutes ago, Trackpads said:

Cannot two unraid servers be directly connected?

They can, I have several.

No, same result.  

 

Try using a different port for that connection, maybe eth4 is bad.

So.... I did that and boom it worked.  So I then just swapped the configs between Eth4 and Eth5 and now they both work.  Networking, its why I am crazy...  

 

Thanks again!!!!!!!

Ok, so now I figured it out.  The 4 port card doesnt show up in unraid in order.  What I thought was (right to left) 5/4/3/2 is actually 5/3/4/2.  Damn that is confusing.  I was changing the wrong Eth settings each time for eth3. ugh lol.  thanks agian for the patience!