Re: Swapping IP address between CPU's

[Philipp Rusch <Philipp.Rusch@xxxxxxxxxxxx>]

Rob,
this *should* be no issue, but you are talking of the ARP cache, where
mac addresses associated with their resp. IP-addresses.
This cache can be reset or manipulated through the ARP command,
Remote manipulation is possible through the means of the ARPING
command, which can add/modify entries of the ARP cache table.
I am not shure about the command line parameters, though.

HTH, regards from Germany, Philipp Rusch

rob@xxxxxxxxx schrieb:

> As a poor man's hotsite during our scheduled downtimes we plan on doing
> the following:
> ENDTCPIFC INTNETADR('xxx.xxx.xxx.xxx') on the primary iSeries
> Lock all libraries pertaining to one division.  Save them to a save file.
> Send them over to our backup.  Verify they've arrived on the backup. Drop
> the primary.
> Restore the libraries.  STRTCPIFC INTNETADR('xxx.xxx.xxx.xxx').  Let the
> user's have their way.
>
> However I've been told that the DNS server in our network needs to have
> it's cache reset to no longer associate that ip address with the old mac
> address.  Currently that involves telnetting into the router, etc.  I
> thought about scripting some telnet session, much the same as you can
> script a ftp session.  Is that possible?
>
> Then it was suggested to me that I script a SNMP request.  Evidently they
> can do more security on that.  And the thought of having router admin
> passwords buried in script files was not very appealing to them.  I can
> respect that.  How would one do that from the iSeries?
>
> Rob Berendt
> --
> "They that can give up essential liberty to obtain a little temporary
> safety deserve neither liberty nor safety."
> Benjamin Franklin
> _______________________________________________
> This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list
> To post a message email: MIDRANGE-L@xxxxxxxxxxxx
> To subscribe, unsubscribe, or change list options,
> visit: http://lists.midrange.com/mailman/listinfo/midrange-l
> or email: MIDRANGE-L-request@xxxxxxxxxxxx
> Before posting, please take a moment to review the archives
> at http://archive.midrange.com/midrange-l.