Dell PowerEdge R 910 Network Issues

Question

Hello. Sorry for the machine translation.Please help with configuring the Dell PowerEdge R 910 server. We have a server in the office and a router with NAT. Installed the operating system CentOS 7. From the router we ran two cables to 1 and 2 of the network card. The first, as I understand it, for iDRAC - they prescribed port 8888 and the range 732 - 740, and the second for the system - many ports are registered there, including 80, 8080, 443, 22, etc. But, the problem is that when you try to connect via SSH, a message appears 'No route to host', although when logging into the OS from the computer and executing the command 'systemctl status sshd.service' there are no errors and is green.Prior to running the two cables, a one-in-one card was connected and only the iDRAC 6 Express was available. All server nodes are green.Please advise on how to correctly make connections in a situation with a router and NAT, so that you can connect via SSH to the system? I would be grateful for your answer.

paul_grapes · Accepted Answer

Hello.Extended testing did not reveal any problems.The problem with the network was solved by installing not the minimum, but the maximum version of Centos 7 with all the drivers.Thank you all for your messages.

DELL-Young E · Answer

Hi, what is your native language? We might have an agent that can help you in it. Also is it possible for you to provide a drawing/picture on what you would like to do? Where did you connect your network cable to?

paul_grapes · Answer

Hi. My language is Russian, I am from Ukraine. Already contacted by phone with Dell support. They advised doing a hard reset of the server to discharge static electricity https://www.dell.com/support/kbdoc/en-us/000175625/how-do-i-reset-and-drain-power-of-my-dell-poweredge-server . If it does not help to carry out a full cycle of diagnostics of the server hardware https://www.dell.com/support/kbdoc/en-us/000132726/how-to-run-hardware-diagnostics-on-your-poweredge-server#3 . We will try.

DELL-Marco B · Answer

Hello, ok please let us know about the diagnostic results. Thanks Marco

DELL-Rey G · Answer

Just making sure I have this right, do you have a network cable going to the optional idrac port as shown in the picture (#4)?
You also have 2 cables going to the other network ports (#1)?
what IP address do you have assigned to the idrac?
what IP addresses did you assign to the two network ports?

Rey
#Iwork4dell
https://downloads.dell.com/manuals/all-products/esuprt_ser_stor_net/esuprt_poweredge/poweredge-r910_owner%27s-manual_en-us.pdf

paul_grapes · Answer

Slot # 4 is for the Enterprise card, which seems to be not essential for the network. We don't have it.
We connected a cable with IP 192.168.10.110 to network connector 1 with port 8888 and port range 732 - 740, for iDRAC.
The second cable with IP 192.168.10.100 for the system was connected to connector # 2 with ports: 21, 22, 9000, 80, 443, 53, 953, 3306, 1500, 8080, 465, 25, 587, 110, 143, 993, 995 , 323.

DELL-Rey G · Answer

In picture I added, #4 is the idrac port, what do you have connected there? Rey#Iwork4Dell

DELL-Rey G · Answer

My apologies, I thought you were trying to SSH into the idrac port.

paul_grapes · Answer

Did a hard reset - it didn't help. The results of the extended testing will be announced by evening.

PowerEdge Hardware General

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