From: frank wells (fwells12@xxxxxxxxxxx)
Date: Thu Jan 25 2001 - 13:04:39 GMT-3
Could you elaborate on this a little further Jarrod. I don't understand
your statement 'let IOS supply network and wildcard mask'
Thanks a lot
>From: "Jarrod Mills" Reply-To: "Jarrod Mills" To: "Chuck Larrieu" , "Les
>Hardin" , Subject: Re: OSPF Config Styles Date: Thu, 25 Jan 2001 08:07:13
>-0600
>
>Chuck,
>
>In my OSPF confis, I always entered address and mask (not inverse) on area
>command and let IOS supply network and wildcard mask. That way, I didnt
>have to worry about making mistakes.
>
>Jarrod Mills, CCIE 6679 ----- Original Message ----- From: "Chuck Larrieu"
>To: "Les Hardin" ; Sent: Thursday, January 25, 2001 12:29 AM Subject: RE:
>OSPF Config Styles
>
>
> > Smarter people than I have a diversity of opinion here. A couple of
>random > thoughts: > > Using 0.0.0.0 255.255.255.255 is quick and dirty. It
>places all the > interfaces you want into the process, and in some cases
>some that you don't > want. Definitely NOT recommended for the Lab, where
>you will undoubtedly be > told not to advertise something or other > >
>Using a.b.c.d 0.0.0.0 serves to place only the specific interface into the
> > process. Specific, clean, easy to troubleshoot, and in any environment
>is > supposed to make troubleshooting easier. Everyone, how many times have
>you > done things this way, found something or other wasn't working, and it
>took a > while for your sore eyes to see you made a mistake in the a.b.c.d
>portion? > In a time sensitive environment like the Lab this still might be
>the easiest > thing to troubleshot > > a.b.c.d inverse mask easiest one to
>make a mistake with, and hardest one to > troubleshoot, IMHO. Especially in
>an VLSM environment. > > BTW, just for fun consider using the interface
>address as the mask. E.g. > 192.168.7.47 192.168.7.47 area 1 it is indeed a
>legitimate mask, as it > places the desired interface into OSPF. Just
>remember the law of unintended > consequences :-> > > Question to all - do
>you find yourselves slipping back and forth between > inverse mask /
>wildcard mask / subnet mask usage? > > I find myself more than I care
>entering 0.0.0.0 as a subnet mask and > 255.255.255.240 as a wildcard mask.
>Is this a stage I am going through as I > pound routers more and more in my
>prep? > > Chuck > > > > -----Original Message----- > From:
>nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Les >
>Hardin > Sent: Wednesday, January 24, 2001 10:01 PM > To:
>ccielab@groupstudy.com > Subject: OSPF Config Styles > > All, > > I'd like
>to engage in a religious discussion for a moment -- OPSF > configuration
>styles. > > I know that there are at least 2 schools of thought out there
>regarding > OSPF config. > > Under router ospf 1: > 1) Use network command
>with classfull IP addresses > 2) Use network command with 32-bit interface
>address, ensuring that only > the desired interface is activated for OSPF,
>then perhaps using area range > to summarize. > > I'd like to hear from a
>few folks as to what their preference is and > why. I'm interested as to
>where the majority of folks sit on this > topic. Thanks for your inputs. >
> > Les > yada yada yada certs > >
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