Commserve take the APIPA IP

Last post 05-31-2017, 5:55 AM by Adhavan. 4 replies.
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  • Commserve take the APIPA IP
    Posted: 04-20-2017, 6:39 AM

    Hi Everybody,

    We have some new problem recently. We have CV 11 SP6. recently backup gets fails some client and we are trying to solve it. I Found that the issue with communication problem.

    Commvault take APIPA IP instead of actual one, but i can able to ping CV to MA to Client and vice versa. But when CV contact client gets fail. We check with windows team, they changed the preference. Actually as per exsiting setup APIPA is primary contact.

    After that when run the checkrediness, CS communication gets success whereas MA communication gets fail. The most beautiful part is, backup gets success.

    My gusseing is issue with port, I checked to telnet IP with 8400 (comm port) get succeed.

    My qst is,

    Why commserv take the wrong? is there any to manually assign a IP in Commserv 

    Is there any way to find the data port for backup ( I need to ask secuirty team)

     

    Thanks in Advance,

    Mani S

     

     

     

  • Re: Commserve take the APIPA IP
    Posted: 04-20-2017, 1:04 PM

    Hi Mani,

    Maybe an interface binding problem.

    KB from Microsoft:

    https://technet.microsoft.com/en-us/library/dd391967(WS.10).aspx

     

    Regards,

    Samuel

  • Re: Commserve take the APIPA IP
    Posted: 04-20-2017, 4:36 PM

    The way this works (by default) is the CommServe is going to look up the client's hostname locally via host file or DNS resolution and connect to the IP to which the client's name resolves on port 8400 (CVD port). The client in turn is going to look up the CommServe or MediaAgent's hostname and connect to that IP. So, if you change the client's hostname to one of its IP addresses you are guaranteed Commvault will attempt connect to that IP. If Commvault is not connecting to the correct IP, investigate name resolution on the client and CS/MA to see what IP the remote machine is resolving to.

    You can use a firewall configuration in Commvault to restrict the range of ports used for data transfer. By default all ephemeral ports are eligible to be used.

  • Re: Commserve take the APIPA IP
    Posted: 04-25-2017, 1:23 AM

    Hi,

    One soilution we found that, changed the binding order in respective windows server. Earlier APIPA is primary contact and now it has been changed to secondary.

    Am one more thing is, found below entry in fwconfig.txt file and confirmed that we didn't have any manual entry in Jave gui and fwconfiglocal.txt too.

    <Commserve name> <client name> type=dip remote_iface=169.254.1.66 local_iface=169.254.2.169 

    any idea?

    Mani S

  • Re: Commserve take the APIPA IP
    Posted: 05-31-2017, 5:55 AM

    Hi,

    Finally, we found a solution, it has DIP entry, removed it and now working fine.

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