From: Erick B. (erickbe@yahoo.com)
Date: Wed Dec 04 2002 - 03:12:20 GMT-3
Perhaps the labs were using MAC address values that
didn't change. Those would be MACs that only contain
0, 6, 9, or F.
--- Jake Jake <spage@nc.rr.com> wrote:
> So are we saying icanreach, icannotreach need not be
> bit swapped..because
> every lab I have worked on shows them entered
> normally...same for mac
> filters.
>
> If you search thru the archives, you see people
> answering different ways.
>
> For me, if i do a icanreach on router a, and then
> show dlsw cap on routerb
> and it shows up as the same way i entered it on
> router a, its ok?
>
> Sorry, I dont deal with dlsw at all in every day
> life, and I dont have any
> hosts in my lab..just looking for a final answer if
> you will.
>
> Jake
>
> -----Original Message-----
> From: nobody@groupstudy.com
> [mailto:nobody@groupstudy.com]On Behalf Of Scott
> Morris
> Sent: Tuesday, December 03, 2002 10:10 PM
> To: 'Nathan Chessin'; ccielab@groupstudy.com
> Subject: RE: DLSW ICANREACH/ICANTREACH in a pure
> Ethernet Environment
>
>
> The filtering is in non-canonical format as the
> basis of everything is
> token ring "thinking". So even in an ethernet to
> ethernet setup, the
> filters are still bit-swapped.
>
> The router does the conversion, but does so at the
> ethernet interface.
> The ICANREACH statements are done in the DLSw
> capabilities exchange and
> in the dlsw process, which works in the TR world of
> though (as backwards
> as that may be).
>
>
http://www.cisco.com/en/US/tech/tk331/tk336/technologies_tech_note09186a
> 00800a6935.shtml
>
> Scott
>
> -----Original Message-----
> From: nobody@groupstudy.com
> [mailto:nobody@groupstudy.com] On Behalf Of
> Nathan Chessin
> Sent: Tuesday, December 03, 2002 9:24 PM
> To: 'Tom Young'; 'MOLINA, MARTIN J (PBI)'
> Cc: ccielab@groupstudy.com
> Subject: RE: DLSW ICANREACH/ICANTREACH in a pure
> Ethernet Environment
>
>
> Is this true? Any documentation?
>
> I was under the assumption tha DLSW mac filtering
> would be in the
> non-canonical format while ethernet mac is
> canonical.
>
> > -----Original Message-----
> > From: nobody@groupstudy.com
> [mailto:nobody@groupstudy.com]On Behalf Of
> > Tom Young
> > Sent: Tuesday, December 03, 2002 5:06 PM
> > To: MOLINA, MARTIN J (PBI)
> > Cc: ccielab@groupstudy.com
> > Subject: RE: DLSW ICANREACH/ICANTREACH in a pure
> Ethernet Environment
> >
> >
> > DOn't need change any of the MAC address, the
> router will
> > do the non-canonical or canonical changing
> according of
> > the port type, ether or TR.
> >
> >
> >
> > --- "MOLINA, MARTIN J (PBI)" <mm1343@sbc.com>
> $+$i$N%a
> > %C%;!<%8!'
> > > Thanks for the lead.
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: C. Warren [mailto:chwarren@cox.net]
> > > Sent: Tuesday, December 03, 2002 2:28 PM
> > > To: MOLINA, MARTIN J (PBI); 'Warren Chuck Contr
> > > JCIET/J6';
> > > ccielab@groupstudy.com
> > > Subject: RE: DLSW ICANREACH/ICANTREACH in a pure
> > > Ethernet Environment
> > >
> > >
> > > MAC's are non-canonical for the icanreach
> statements......was using
> > > the
> > >
> > > link as a guide to lead you to the answer.....
> > >
> > >
> > >
> > > Chuck, CCIE #10653
> > >
> > >
> > >
> > > > -----Original Message-----
> > >
> > > > From: nobody@groupstudy.com
> > > [mailto:nobody@groupstudy.com] On
> > >
> > > > Behalf Of MOLINA, MARTIN J (PBI)
> > >
> > > > Sent: Tuesday, December 03, 2002 3:22 PM
> > >
> > > > To: 'Warren Chuck Contr JCIET/J6';
> > > 'ccielab@groupstudy.com'
> > >
> > > > Subject: RE: DLSW ICANREACH/ICANTREACH in a
> pure
> > > Ethernet Environment
> > >
> > > >
> > >
> > > >
> > >
> > > > I've seen this example before but
> unfortunately
> > > the router
> > >
> > > > they use in the example is a Token Ring router
> > > that has a
> > >
> > > > dlsw icanreach statement configured for a FEP
> on
> > > the Token
> > >
> > > > network. I'm wondering if hosts on an Ethernet
> > > network need
> > >
> > > > their mac bit-swapped. Thank you for your
> reply
> > > just the same !
> > >
> > > >
> > >
> > > > -----Original Message-----
> > >
> > > > From: Warren Chuck Contr JCIET/J6
> > > [mailto:charles.warren@eglin.af.mil]
> > >
> > > > Sent: Tuesday, December 03, 2002 11:55 AM
> > >
> > > > To: MOLINA, MARTIN J (PBI);
> > > 'ccielab@groupstudy.com'
> > >
> > > > Subject: RE: DLSW ICANREACH/ICANTREACH in a
> pure
> > > Ethernet Environment
> > >
> > > >
> > >
> > > >
> > >
> > > >
> > >
> > > > I think you'll find your answer in this link:
> > >
> > > >
> > >
> > >
> >
>
http://www.cisco.com/warp/public/697/dlswfilter.shtml#macfilter1
> > >
> > >
> >
>
<http://www.cisco.com/warp/public/697/dlswfilter.shtml#macfilter1>
> > >
> > >
> > >
> > >
> > > Chuck, CCIE #10653
> > >
> > >
> > >
> > > > -----Original Message-----
> > >
> > > > From: MOLINA, MARTIN J (PBI) [
> > > mailto:mm1343@sbc.com
> > >
> > > <mailto:mm1343@sbc.com> ]
> > >
> > > > Sent: Tuesday, December 03, 2002 12:20 PM
> > >
> > > > To: 'ccielab@groupstudy.com'
> > >
> > > > Subject: DLSW ICANREACH/ICANTREACH in a pure
> > > Ethernet Environment
> > >
> > > >
> > >
> > > >
> > >
> > > > Hello,
> > >
> > > > I'm not sure this post will make it to the
> group
> > > since I have
> > >
> > > > had trouble in
> > >
> > > > the past but here it goes:
> > >
> > > >
> > >
> > > > If one were presented with the following
> > > requirement:
> > >
> > > > "Config R4 to peer to R2. Ensure that R2 never
> > > sends explorers for
> > >
> > > > 4000.4000.4000 which is the only resource
> > > available through R4"
> > >
> > > > R2 and R4 are Ethernet only. My question is
> this-
> > > If I choose
> > >
> > > > to configure a
> > >
> > > > DLSW ICANREACH statement on R4 to satisfy this
> > > requirement, should the
> > >
> > >
> > >
> > > > command be :
> > >
> > > > dlsw icanreach mac-exclusive
> > >
> > > > dlsw icanreach mac-address 0200.0200.0200 mask
> > > ffff.ffff.ffff
> > >
> > > > or
> > >
> > > > dlsw icanreach mac-exclusive
> > >
> > > > dlsw icanreach mac-address 4000.4000.4000 mask
> > > ffff.ffff.ffff
> > >
> > > > In other words, do I need to bit-swap in an
> > > Ethernet only environment?
> > >
> > >
> > >
> > > > Thanks in advance
> > >
> > > >
> > >
> > > >
> > >
> > > >
> > >
> > > > Martin Molina
> > >
> > > > Senior Network Engineer
> > >
> > > > SBC (Pacific Bell) Internet Services
> > >
> > > > CCNP CCDP
> > >
> > > > desk: (925) 973-7774
> > >
> > > > cell: (925) 216-5299
> >
> > __________________________________________________
> > Do You Yahoo!?
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http://bb.yahoo.co.jp/
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