ping the ILO interface
Dear all
i have 4 servers under RHEL 6.9, i configured the ilo interface for 4 servers then put it in the same switch, but if i want to ping one of this ilo interface from one servers , i receive meesage that the network is unreachable, please cannyou support me
Best Reagards
Responses
Guru
6222 points
Hello Ilyasse,
There is not much information in this remark. Are only the iLO's in the same network?
How about the network interfaces of the servers. iLOs are not part of the hardware that is managed by the operating system. So if you think that connecting the iLOs to a network switch is enough to use the network by RHEL then you are mistaken.
Did you connect another network interface of each server to a switch and configure ip-addresses on the operating system? If so are these ip-addresses in the same network segment as the iLOs?
Regards,
Jan Gerrit Kootstra
Guru
6222 points
You can check if two ip-addresses are in the same network segment via http://jodies.de/ipcalc, if the network and broadcast address are the same then you are on the same network.
We will not discuss special cases, like overlapping subsets.
Guru
6222 points
You need to provide more information about the network setup. Did you setup network configuration on the operating system?
Please provide the output of ip a and ip route of one of the operating systems.
Also give the ip-address and netmask of one of the iLOs.
Guru
6222 points
A solution can be made, but you need to provide more information.
Give the output of ip a and ip route from one of the RHEL command prompts.
Also provide ip-address and netmask of one of the iLOs.
Yes, this can be done by adding a static route. To set this on temporary basis, we could run the command "ip route add via dev " (example: ip route add 10.20.30.0/24 via 192.168.10.101 dev eth0 (here... 10.20.30.0 is your iLO network and 192.168.10.101 is your current active IP on the system). To make this persistent, create the file /etc/sysconfig/network-scripts/route-eth0 as shown below:
#cat /etc/sysconfig/network-scripts/route-eth0
10.20.30.0/24 via 192.168.10.101
Hi Ilyasse,
Please provide the info I asked you for. If not people like Sadashiva try to create solutions that might not be relevant. Static routes only make sense if you have multiple networkcards in your server that are connected to different networks, or if you have multiple routers in your network segments.
Without your reply we have no real clue what soultion suits your needs.
Regards,
Jan Gerrit
I agree with you Jan. My solution may not a relevant one, but could one among those solutions. Yes, the initial query was not comprehensive which otherwise could have avoided all these statements. I could have simply added an if statement; if end system could have corresponding route table to respond back. Well, multiple network cards, dedicated to separate networks could be ideal way for static routes, however, if there is single interface which got to ping another network IP to check for alive status (as in case of monitoring we might need this), then we really can't afford (as in case of virtual systems allotted with single interface) a separate network interface which otherwise could be routed using the same primary interface and end device would be made aware of such requests. Anyways, nothing personal, but your statement 'people like Sadashiva try to create solutions' hits me as though I've committed a mistake. No worries, end of the day, we are all here to share/learn knowledge.
Guru
6222 points
Hi Sadashiva,
I did not want to argue your suggestion. I wanted to trigger Ilyasse to give us more information.
Regards,
Jan Gerrit
Guru
6222 points
Hi Ilyasse,
What do you mean by KVM? Kernel Virtual Machine or Keyboard Video Mouse?
What are trying to achieve?
First you ask a question how to connect to iLO from RHEL, it looked like a network issue.
Now you what change your setup. Please tell us what you want to do and than we can see if we can help to find a solution.
We are a group of fellow customers who try to help other customers with issues in their spare time, not a group of online full time consultants. So if your goal is not clear to us we have to spend a lot of time guessing.
Regards,
Jan Gerrit
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