From: Goh, Winston (winston.goh@xxxxxxxxxxxxx)
Date: Thu May 11 2000 - 21:56:56 GMT-3
Hi,
For redistribution, there is a implicit deny. If there is no match, then the
route is not redistributed.
For policy routing, if there is not match then it is routed as per normal.
For bgp, if route-map is being used for setting the attribute, then implicit
deny rule still apply. i personally experience it before. cheers
Winston Goh
CCNP, CVE
Snr Network Specialist
Unisys Singapore
mobile : 97469192
-----Original Message-----
From: Kevin Young [mailto:kvyoung@sina.com]
Sent: Thursday, May 11, 2000 11:11 AM
To: Price, Jamie
Cc: ccielab
Subject: Re: route-map question
RE: route-map questionthanks, then this rule is also the same with BGP ?
----- Original Message -----
From: Price, Jamie
To: Price, Jamie ; ''John Conzone ' ' ; ''Vijay Venkatesh ' ' ; ''Kevin
Young ' '
Cc: ''ccielab ' '
Sent: Thursday, May 11, 2000 6:53 AM
Subject: RE: route-map question
And then to go further from there that is why you need the "null" permit
in order to let all other routes be redistributed by whatever is specified
in the redistribution command (or by default).
As far as I can tell you dont need "null" permits outside of
redistribution.
Jamie
-----Original Message-----
From: Price, Jamie
To: 'John Conzone '; 'Vijay Venkatesh '; 'Kevin Young '
Cc: 'ccielab '
Sent: 5/10/00 5:46 PM
Subject: RE: route-map question
Correct me if I'm wrong but actually the implicit deny only pertains to
the route-maps used in route redistribution. If a route doesnt match
the route map then it is not redistributed.
If the route-map is being used for policy routing (ie setting an IP
nexthop to override routing decisions) then the suggested implicit deny
does not apply in the literal sense. In such a scenario packets that do
not meet a parameter in the route map will be routed normally.
Jamie
-----Original Message-----
From: John Conzone
To: Vijay Venkatesh; Kevin Young
Cc: ccielab
Sent: 5/10/00 5:04 PM
Subject: Re: route-map question
Correct. Thee is an implicit deny at the end so you would need a
route
map xxxx permit 20 to allow the rest of the stuff through.
----- Original Message -----
From: "Vijay Venkatesh" <vijay.venkatesh@usa.net>
To: "Kevin Young" <kvyoung@sina.com>
Cc: "ccielab" <ccielab@groupstudy.com>
Sent: Wednesday, May 10, 2000 10:32 AM
Subject: Re: route-map question
> I beleive if you want to let the other packets not matched to pass
> through then you would need the permit 20. Anything that is matched
will
> be processed through the set staement.
>
> Vijay.
>
>
> Kevin Young wrote:
> >
> > Hi, everyone
> >
> > I have a question wish some help me,
> > when need to add a null route-map permit xx(instance)
> > in the end of a route-map? such as:
> > route-map abc permit 10
> > match xxx
> > set xxx
> > should i must append a null route-map abc permit 20 in the end?
which
situation needs?
> >
> > thanks a lot
> >
> > **************************************
> > Kevin Young
> > Senior Network Engineer
> > Yinxi Electronic Information Co.,Ltd
> > (86)-10-82625798 x 810
> > **************************************
> >
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