Router vm gets the same ip address even after destroying and recreating it. 
Since CS does not have a mechanism to notify the router vm after for existing 
guest vms it won't change the IP address. ASAIK the IP will be released only 
after deleting that network.

Best Regards,
Sanjeev N
Chief Product Engineer, Accelerite
Off: +91 40 6722 9368 | EMail: [email protected] 


-----Original Message-----
From: Özhan Rüzgar Karaman [mailto:[email protected]] 
Sent: Wednesday, May 11, 2016 8:35 PM
To: [email protected]
Subject: Problem Releasing of Previously Allocated IP Address

Hi;
I have setup of advanced networking with security groups enabled. Yesterday i 
destroyed and restarted router-vm and after that i noticed that from the 
CloudStack dashboard on Shared Network IP's there is one more extra ip address 
allocated then its expected.

I checked mysql db (select * from user_ip_address where state="Allocated";) to 
see which ip addresses are allocated and i noticed that there is an ip address 
like x.x.x.5 is allocated but its not used by any vm or systemvm's.

After that i check management server log and i noticed that this ip is high 
probably router vm's previous ip address. Because on management server log i 
noticed lines like below:

2016-05-11 16:54:54,374 DEBUG [c.c.a.t.Request]
(Work-Job-Executor-116:ctx-19aae9a4 job-1302/job-1303 ctx-eb95bef0)
(logid:7f64e204) Seq 10-1563030545674275235: Sending  { Cmd , MgmtId:
345050167520, via: 10(kvma16), Ver: v1, Flags: 100011, 
[{"com.cloud.agent.api.routing.DhcpEntryCommand":{"vmMac":"06:49:d6:00:00:03","vmIpAddress":"x.x.x.4","vmName":"win10CreateTemp444","defaultRouter":"x.x.x.1","defaultDns":"x.x.x.5","duid":"00:00:00:00:00:00:xx:00:00:03","isDefault":true,"executeInSequence":false,"accessDetails":{"zone.network.type":"Advanced","router.guest.ip":"x.x.x.15","router.ip":"169.254.3.100","
router.name":"r-91-VM"},"wait":0}}] }

So the suspicious ip address is written in "defaultDns":"x.x.x.5" field and its 
not correct. I am not currently using dhcp addresses which CloudStack provides 
but 1 of my ip addresses are gone :)

So why this could happen is this be a bug?

I also checked logs that defaultDns entry is sometimes correct routervm
ip(x.x.x.15) and sometimes old router vm's ip (x.x.x.5).

Thanks
Özhan Rüzgar Karaman



DISCLAIMER
==========
This e-mail may contain privileged and confidential information which is the 
property of Accelerite, a Persistent Systems business. It is intended only for 
the use of the individual or entity to which it is addressed. If you are not 
the intended recipient, you are not authorized to read, retain, copy, print, 
distribute or use this message. If you have received this communication in 
error, please notify the sender and delete all copies of this message. 
Accelerite, a Persistent Systems business does not accept any liability for 
virus infected mails.

Reply via email to