Author Topic: MSL of MBG is showing IP Address 0.0.0.0 with ifconfig [Solved]  (Read 1459 times)

Offline Tech Electronics

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MSL of MBG is showing IP Address 0.0.0.0 with ifconfig [Solved]
« on: October 04, 2019, 11:15:02 AM »
Mitel Standard Linux Gurus,

Has anyone ever run into this issue.

Symptom: Not able to access the MBG via the web interface, but can see it is up and running in the VMware console.

Testing:
1. Logged in the VMware console with admin account and checked to see if it can get to the AMC; Failed.
2. Look through the Configuration Setup and everything shows what it is supposed to be.
3. Logged in as root account and tried to ping the gateway; Failed.
4. Logged in as root account and verified the ifconfig; shows IP Address as 0.0.0.0!!!
5. Reboot the system to see if that fixed the problem; Fail - states the IP Address is in use elsewhere on the network.
6. Shut down the server and scanned the network; nothing else has that IP Address.
7. Started the server back up and saw the same issue; Fail - states the IP Address is in use elsewhere on the network.
8. Logged in as root account and verified interface; shows IP Address 0.0.0.0
9. Manually configured the IP Address to what it should be via ifconfig; Now can log into web interface.
10. Rebooted server and saw the same issue again; Fail - states the IP Address is in use elsewhere on the network.

Has anyone else run into this situation and if so what was the cause and fix?

Thanks,

TE
« Last Edit: October 04, 2019, 06:38:39 PM by Tech Electronics »


Offline ZuluAlpha

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Re: MSL of MBG is showing IP Address 0.0.0.0 with ifconfig
« Reply #1 on: October 04, 2019, 03:22:37 PM »
When it resets to 0.0.0.0 can you ping what the IP Address is supposed to be from another PC or Console? Basically we know the IP address isn't actually being used elsewhere, correct?

Offline johnp

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Re: MSL of MBG is showing IP Address 0.0.0.0 with ifconfig
« Reply #2 on: October 04, 2019, 06:19:52 PM »
New install?

Offline Tech Electronics

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Re: MSL of MBG is showing IP Address 0.0.0.0 with ifconfig [Solved]
« Reply #3 on: October 04, 2019, 06:38:11 PM »
ZuluAlpha,

Step 6 of testing from the Firewall, the only other device in the DMZ on that subnet, did not come back with anything; ICMP is turned off from other networks so I couldn't test outside of that.

JohnP,

Yes, this is a new install, but it has been in place since mid-April.

After learning some about the MSL and some new Linux commands today we finally figured out what was going on; sort of.

So, apparently whenever an MSL based server starts up and before it applies whatever IP Address that is in the configuration file it will perform an arping to determine if that IP Address is in use somewhere else; if the IP Address is in use elsewhere it will assign 0.0.0.0 to the interface instead. So, in order to figure out what was replying to the arping command when the server booted up we performed the following steps from the root account.

1. Set the MSL to another IP on the same subnet via the ifconfig command.
    Note: By the way this IP Address will not stay on a reboot of the server as it will clear it out and be replaced by what is in the configuration file; if it can.
2. Used the arping command we got a reply from that IP Address with a MAC Address.

We were then able to determine via the OUI [first three octets of the MAC Address] that the Firewall was returning itself as having that IP Address even though it isn't configured anywhere in it. The odd thing is that the MAC Address that replied to the arping was assigned as the Gateway for the DMZ subnet the MSL was in.

The customer opened up a ticket with Checkpoint to try and figure out why it is doing that.

Thanks,

TE

Offline johnp

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Re: MSL of MBG is showing IP Address 0.0.0.0 with ifconfig [Solved]
« Reply #4 on: October 04, 2019, 09:29:20 PM »
I was thinking it might have been some kind of bonded nic related issue, and arp seeing another mac


 

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