From: Wu, Jiang (wujiang@xxxxxxxxx)
Date: Fri Dec 08 2000 - 04:06:40 GMT-3
Are there any classful routes from backbone?
Wu
----- Original Message -----
From: Dezhong Cai <dcai@cisco.com>
To: <zhangxqi@gitc.com.cn>; <aolzak@buckeye-express.com>
Cc: <ccielab@groupstudy.com>
Sent: Friday, December 08, 2000 2:32 PM
Subject: Re: Wording
> HI, Wu,
>
> I agree with your idea. But in my lab test, you can't use any other IP
> address except the given class B address (in this case it is 134.1.0.0). So
> what?
>
> Dezhong
>
>
> -----Original Message-----
> From: Lei Chen <leichen@cisco.com>
> To: dcai@students.depaul.edu <dcai@students.depaul.edu>
> Date: Thursday, December 07, 2000 9:34 PM
> Subject: Re: Wording
>
>
> >Then you use summary again? Try add a new loopback using classful network.
> Add it to IGRP and make it to be the default. Ideas?
> >
> >Regards,
> >Wu Jiang
> >
> >----- Original Message -----
> >From: zhangxianqi <zhangxqi@gitc.com.cn>
> >To: Tony Olzak <aolzak@buckeye-express.com>
> >Cc: <ccielab@groupstudy.com>
> >Sent: Friday, December 08, 2000 9:47 AM
> >Subject: Re: Wording
> >
> >
> >> Hi,
> >> You can try redistribute connect on r3 and summary to 134.1.0.0/16 then
> use 'ip default-network 134.1.0.0' command.
> >>
> >>
> >> Regards
> >> xianqi
> >> ----- Original Message -----
> >> From: Tony Olzak <aolzak@buckeye-express.com>
> >> To: Robert DeVito <robertdevito@hotmail.com>; <fningham@worldnet.att.net>
> >> Cc: <ccielab@groupstudy.com>
> >> Sent: Friday, December 08, 2000 5:59 AM
> >> Subject: Re: Wording
> >>
> >>
> >> > This is because the IGRP-enabled link is using a 24-bit network mask.
> This
> >> > means IGRP will ONLY accept 24-bit mask routes from 134.1.x.x networks.
> >> >
> >> > Tony
> >> >
> >> > ----- Original Message -----
> >> > From: "Robert DeVito" <robertdevito@hotmail.com>
> >> > To: <fningham@worldnet.att.net>
> >> > Cc: <ccielab@groupstudy.com>
> >> > Sent: Thursday, December 07, 2000 7:43 AM
> >> > Subject: Re: Wording
> >> >
> >> >
> >> > > Going back to the following scenerio:
> >> > >
> >> > > Configure IGRP between R3 and R4. Ensure that all routers in the
> >> > > network can access all interfaces on all the routers. Configuring
> >> > > ONLY R3, send a default route to R4 without using static routes,
> >> > > route maps, or summary addresses.
> >> > >
> >> > >
> >> > > R2 (E0 - 134.1.32.1/20)
> >> > > |e0
> >> > > | OSPF Area 0
> >> > > |e0
> >> > > R3 (E0 - 134.1.32.2/20, S0 - 134.1.31.1/24)
> >> > > \s0
> >> > > \ IGRP
> >> > > \s0
> >> > > R4 (s0 - 134.1.31.2/24)
> >> > >
> >> > > I have having a hard time getting the 134.1.32.X network to be
> >> > redistributed
> >> > > into IGRP. Here are my configs. I am asumming that after I am able to
> get
> >> > > the 134.1.32.X network to redistribute into IGRP, I would add the "ip
> >> > > default-netw 134.1.32.0" command to r3, then redistribute IGRP into
> OSPF
> >> > in
> >> > > R3, and that problem should be solved?????
> >> > >
> >> > > Thanx in advanced.
> >> > >
> >> > > R3 Config:
> >> > > interface Ethernet0/0
> >> > > ip address 134.1.32.2 255.255.240.0
> >> > > ip irdp
> >> > > ip irdp multicast
> >> > > ip irdp preference 600
> >> > > !
> >> > > interface Serial0/0
> >> > > ip address 134.1.31.1 255.255.255.0
> >> > > no ip mroute-cache
> >> > > clockrate 2000000
> >> > > !
> >> > > router ospf 1
> >> > > summary-address 134.1.32.0 255.255.255.0
> >> > > redistribute connected
> >> > > network 134.1.32.0 0.0.0.255 area 0
> >> > > default-metric 100
> >> > > !
> >> > > router igrp 1
> >> > > redistribute ospf 1
> >> > > passive-interface Ethernet0/0
> >> > > network 134.1.0.0
> >> > > !
> >> > > ip classless
> >> > > !
> >> > > Gateway of last resort is not set
> >> > >
> >> > > 134.1.0.0/16 is variably subnetted, 4 subnets, 3 masks
> >> > > O IA 134.1.3.0/24 [110/74] via 134.1.32.1, 00:00:28, Ethernet0/0
> >> > > C 134.1.31.0/24 is directly connected, Serial0/0
> >> > > C 134.1.32.0/20 is directly connected, Ethernet0/0
> >> > > O IA 134.1.48.0/25 [110/84] via 134.1.32.1, 00:00:28, Ethernet0/0
> >> > > 150.100.0.0/24 is subnetted, 1 subnets
> >> > > O E2 150.100.1.0 [110/500] via 134.1.32.1, 00:00:28, Ethernet0/0
> >> > > I 150.200.0.0/16 [100/8976] via 134.1.31.2, 00:00:11, Serial0/0
> >> > >
> >> > > Router 4 Config:
> >> > > ip subnet-zero
> >> > > no ip domain-lookup
> >> > > !
> >> > > interface Loopback0
> >> > > ip address 150.200.2.1 255.255.255.0
> >> > > !
> >> > > interface Serial0
> >> > > ip address 134.1.31.2 255.255.255.0
> >> > > no fair-queue
> >> > > !
> >> > > interface Serial1
> >> > > no ip address
> >> > > shutdown
> >> > > !
> >> > > interface TokenRing0
> >> > > no ip address
> >> > > shutdown
> >> > > !
> >> > > router igrp 1
> >> > > network 150.200.0.0
> >> > > network 134.1.0.0
> >> > > !
> >> > > ip classless
> >> > > !
> >> > > Gateway of last resort is not set
> >> > >
> >> > > 150.200.0.0/24 is subnetted, 1 subnets
> >> > > C 150.200.2.0 is directly connected, Loopback0
> >> > > 134.1.0.0/24 is subnetted, 2 subnets
> >> > > I 134.1.3.0 [100/52100] via 134.1.31.1, 00:00:52, Serial0
> >> > > C 134.1.31.0 is directly connected, Serial0
> >> > > I 150.100.0.0/16 [100/52100] via 134.1.31.1, 00:00:52, Serial0
> >> > >
> >> > > **** As you can see, I can see other routes that are being
> redistributed
> >> > > into IGRP from OSPF, I just can not see the 134.1.32.X network.
> >> > >
> >> > > ----Original Message Follows----
> >> > > From: Fred Ingham <fningham@worldnet.att.net>
> >> > > Reply-To: fningham@worldnet.att.net
> >> > > To: Robert DeVito <robertdevito@hotmail.com>
> >> > > Subject: Re: Wording
> >> > > Date: Wed, 06 Dec 2000 20:23:22 -0500
> >> > >
> >> > > Or better yet an OSPF route that is a different subnet. For instance
> if
> >> > > you configured r3-r4 link with 172.16.65.0/24
> >> > > you couldn't use 172.16.0.0 as the default network. If the link
> >> > > between r3-r2 were 172.17.x.y then you could use 172.17.0.0 as the
> >> > > default network.
> >> > >
> >> > > The network must exist in the routing table (of r3) as a connected,
> >> > > static, or learned route. You could configure 10.1.1.3 as a loopback
> on
> >> > > r3 and use 10.0.0.0 as the default network for instance. Remember to
> >> > > advertise the default network under IGRP on r3 with a network
> statement.
> >> > >
> >> > > Fred.
> >> > >
> >> > > Robert DeVito wrote:
> >> > > >
> >> > > > Fred,
> >> > > >
> >> > > > I am assuming if I can not use the classless address of the link
> >> > > > between R3 and R4 as the "default-network", I would have to append
> the
> >> > > > ip default-network command to a OSPF learned network? i.e. the
> link
> >> > > > between R3 and R2??
> >> > > >
> >> > > > Robert
> >> > > >
> >> > > > ----Original Message Follows----
> >> > > > From: Fred Ingham
> >> > > > Reply-To: Fred Ingham
> >> > > > To: Robert DeVito , ccielab@groupstudy.com
> >> > > > Subject: Re: Wording
> >> > > > Date: Wed, 06 Dec 2000 17:05:49 -0500
> >> > > > You also would have to redistribute IGRP into OSPF on r3 to ping
> the
> >> > > > R4
> >> > > > addresses from r2. Best to use route maps on both OSPF and IGRP
> >> > > > redistributions to prevent routing loops. Default network is the
> way
> >> > > > to
> >> > > > get a default into IGRP. The default network should be in r3's
> routing
> >> > > > table and not the same classful address configured on r4. r4
> should
> >> > > > have the ip classless command and check that the r4 interface to
> r3
> >> > > > has
> >> > > > split horizon enabled.
> >> > > > Fred.
> >> > > > Robert DeVito wrote:
> >> > > > >
> >> > > > > R2
> >> > > > > |
> >> > > > > | Area 0
> >> > > > > |
> >> > > > > R3-------------------R4
> >> > > > >
> >> > > > > OSPF is configured between R2 and R3 (working good). I am trying
> to
> >> > > > > figure out what they mean below and how would you do that? Would
> you
> >> > > > > configure IGRP between R3 and R4 and then redistribute OSPF into
> >> > > > IGRP
> >> > > > > and use the " ip default-network" in R3?
> >> > > > >
> >> > > > > Configure IGRP between R3 and R4. Ensure that all routers in the
> >> > > > > network can access all interfaces on all the routers.
> Configuring
> >> > > > > ONLY R3, send a default route to R4 without using static routes,
> >> > > > route
> >> > > > > maps, or summary addresses.
> >> > > > >
> >> > > > > Thank you,
> >> > > > > Robert DeVito
> >> > > > >
> >> > > > >
> >> > >
> > ----------------------------------------------------------------------
> >> > > > > Get more from the Web. FREE MSN Explorer download :
> >> > > > > http://explorer.msn.com
> >> > > > >
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