From: Mike McSpedon (mike@xxxxxxxxxxxxxx)
Date: Mon Jan 22 2001 - 15:23:44 GMT-3
Bill is correct. The 'always' keyword violates the requirements of the
question. (Incidentally, although I forgot to mention so do static routes.)
-Mike
At 10:12 AM 1/22/01 -0800, Bill Dellamar wrote:
>I thought the requirement was to advertise the default
>only if r2 was available, the always command will
>cause the router to "always" generate a default no
>matter what the state of r2.
>Bill
>
>--- Mike Schlenger <mschlenger@n2nsolutions.com>
>wrote:
> > Well, his OSPF router wont advertise himself as the
> > default route unless he
> > includes the "always" option on the
> > default-information originate command.
> > (assuming no static default has been configured.)
> >
> > my 2cents
> >
> >
> > -----Original Message-----
> > From: Mike McSpedon [mailto:mike@mentortech.com]
> > Sent: Monday, January 22, 2001 11:41 AM
> > To: Bill Dellamar; ccielab@groupstudy.com
> > Subject: Re: OSPF Redistribution Challenge
> >
> >
> > Can anyone tell me what is wrong with Bill's answer?
> >
> > -Mike
> >
> > At 09:19 AM 1/22/01 -0800, Bill Dellamar wrote:
> > >I don't have a rack to test this, but this would be
> > my
> > >first guess.
> > >
> > >How about this on R3:
> > >router ospf 1
> > >default-information-originate route-map gen-default
> > >!
> > >route-map gen-default permit 10
> > >match ip address 1
> > >!
> > >access-list 1 permit 135.5.192.0 0.0.0.3
> > >
> > >Bill
> > >
> > >--- Mike McSpedon <mike@mentortech.com> wrote:
> > > > Here's a challenge:
> > > >
> > > > r1e0===e0r2s0====s1r3s0=======s1r4e0
> > > >
> > > > r1e0: 170.10.1.1 /24
> > > > r2e0: 170.10.1.2 /24
> > > > r2s0:170.10.255.1 /30
> > > > r3s1:170.10.255.2 /30
> > > > r3s0: 135.5.192.1 /30
> > > > r4s1: 135.5.192.2 /30
> > > > r4e0: 135.5.112.0 /24
> > > >
> > > > Loopbacks:
> > > > r3: 192.168.3.1
> > > > r4: 192.168.4.1
> > > >
> > > > 1. Routers 1, 2, and the 3 are routing IP via
> > ISIS.
> > > > 2. OSPF is running only on the serial link
> > between
> > > > routers 3 and 4 and on
> > > > the Ethernet on r4 (all Area 0).
> > > > 3 . Perform mutual redistribution between ISIS
> > and
> > > > OSPF on r3 .
> > > > 4. Advertise a default route to from r3 to r4 if
> > > > AND ONLY if r2 is
> > > > reachable. Do not use a default route in the
> > ISIS
> > > > domain. Only advertise
> > > > the address above from the ISIS domain to the
> > OSPF
> > > > domain.
> > > >
> > > > The answer is on the CD.
> > > >
> > > > Enjoy!
> > > > -Mike
> > > >
> > > >
> >
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:27:39 GMT-3