Re: var or ipvar?

[Nicholas Bogart <nickybzoss () gmail com>]

Here is a snippet from the most current manual.  Which I checked after my
last email.

"IPs may be specified individually, in a list, as a CIDR block, or any
combination of the three. IP variables should be
specified using ’ipvar’ instead of ’var’. Using ’var’ for an IP variable is
still allowed for backward compatibility, but it
will be deprecated in a future release." -  Snort Manual, November 2012

So if I read that it is currently still allowed and older builds shouldn't
break if it is still used.  As I said before some of the older builds ipvar
hinged on if IPv6 was enabled when it was installed or not.  So if it
wasn't then that might cause an issue.



Nick




On Mon, Jan 28, 2013 at 2:39 PM, Y M <snort () outlook com> wrote:

>  From Snort 2.9.4 release notes:
>
> "Consolidation of IPv6 -- now only a single build supports both IPv4 &
> IPv6, and removal of the IPv4 "only" code paths."
>
> Does this mean that ipvar should support both IPv4 and IPv6 and var is
> deprecated/ no longer needed? Or am I totally off topic here?
>
> In previous installations of Snort, we had ipvar and var both at the same
> config file and we did not see any problems, however, we didn't have IPv6
> enabled at that point of time.
>
> YM
>  ------------------------------
> From: Joel Esler <jesler () sourcefire com>
> Sent: 1/28/2013 11:07 PM
> To: Nicholas Bogart <nickybzoss () gmail com>
> Cc: snort-users () lists sourceforge net
> Subject: Re: [Snort-users] var or ipvar?
>
>  Ipvar, for ips. Portvar for ports.
>
> --
> Joel Esler
> Sent from my iPad
>
> On Jan 28, 2013, at 3:01 PM, Nicholas Bogart <nickybzoss () gmail com> wrote:
>
>   Last I remember on this from the manual you only use ipvar if you are
> working in an IPv6 evironment and have enabled snort for IPv6.  If you have
> it turned off then you can continue and are encouraged to still use var.
>
>
> Nick
>
>  On Mon, Jan 28, 2013 at 1:56 PM, waldo kitty <wkitty42 () windstream net>wrote:
>
>
> var used to be used for most all var definitions... then work was being
> done for
> IPv6 and ipvar was created... since then, it seems that ipvar has been
> retained
> for all and var is simply no longer used...
>
> is this accurate?
>
> why is var not retained as an alias for ipvar? systems have been breaking
> all
> around us and it is only just now that we're starting to find this possibly
> being the problem :(
>
> will it hurt to have both var and ipvar pointing to the same definitions??
>
> will older snorts fall over because of ipvar being introduced into their
> environment before they are ready for it?
>
>
>
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