Narbik,
You are the MAN
Thanks alot
Regards
On Tue, Nov 25, 2008 at 11:56 PM, mike jones <ccie1q2008_at_hotmail.com> wrote:
> Narbik,
> I tried disallowing in a 0.0.0.0 route that I redistributed into
> EIGRP
> from rip, and it did not work. I got it to work with your above task. So
> default-information [ allowed | in | out ] only "allow or disallow"
> default-network routes via EIGRP?
>
>
> Thanks!
>
>
> Mike
>
> > Date: Mon, 24 Nov 2008 23:00:38 -0800
> > From: narbikk_at_gmail.com
> > To: deadheadblues_at_gmail.com
> > Subject: Re: What exactly does this EIGRP command do?
> default-information [
> allowed | in | out ]
> > CC: madsen.jason_at_gmail.com; ccielab_at_groupstudy.com
> >
> > I guess the fonts went crazy on me, but the IP address of R2's S0/0.23
> > should be ".2" and the IP address of R3's S0/0.32 should be ".3".
> >
> > On Mon, Nov 24, 2008 at 10:55 PM, Narbik Kocharians
> <narbikk_at_gmail.com>wrote:
> >
> > > *OK check this lab and i know it will help you understand this command
> > > totally:*
> > >
> > >
> > > R1 (S0/0.12)----------------------(S0/0.21) R2
> > > (S0/0.23)----------------------(S0/0.32) R3
> > > .1 *10.1.12.0/24* .2
> > > .3
> *
> > > 10.1.23.0 /24 * .4
> > >
> > > The connection between the routers are frame-relay all configured in a
> P2P
> > > manner, but understand that it could be any kinda connection.
> > > R1 has 3 loopback interfaces (2.0.0.0/8, 3.0.0.0/8 and 4.0.0.0/8).
> > >
> > > *Task 1*
> > >
> > > * *
> > >
> > > Configure Eigrp on all routers and advertise their directly connected
> > > interfaces in AS 100. R1 should NOT advertise network 4.0.0.0 /8 in
> this
> > > routing protocol.
> > >
> > >
> > >
> > > * *
> > >
> > > *On R1*
> > >
> > > * *
> > >
> > > R1(config)#Router eigrp 100
> > >
> > > R1(config-router)#no au
> > >
> > > R1(config-router)#netw 2.0.0.0
> > >
> > > R1(config-router)#netw 3.0.0.0
> > >
> > > R1(config-router)#netw 10.1.12.1 0.0.0.0
> > >
> > >
> > >
> > > *On R2*
> > >
> > > * *
> > >
> > > R2(config)#Router eigrp 100
> > >
> > > R2(config-router)#no au
> > >
> > > R2(config-router)#network 10.1.12.2 0.0.0.0
> > >
> > > R2(config-router)#network 10.1.23.2 0.0.0.0
> > >
> > >
> > >
> > > *On R3*
> > >
> > >
> > >
> > > R3(config)#Router eigrp 100
> > >
> > > R3(config-router)#no au
> > >
> > > R3(config-router)#network 10.1.23.3 0.0.0.0
> > >
> > >
> > >
> > > *To verify the configuration:*
> > >
> > > * *
> > >
> > > *On R1*
> > >
> > > * *
> > >
> > > *R1#Show ip route eigrp*
> > >
> > >
> > >
> > > 10.0.0.0/24 is subnetted, 2 subnets
> > >
> > > D 10.1.23.0 [90/2681856] via 10.1.12.2, 00:01:55, Serial0/0.12
> > >
> > >
> > >
> > > *On R2*
> > >
> > >
> > >
> > > *R2#Show ip route eigrp*
> > >
> > >
> > >
> > > D 2.0.0.0/8 [90/2297856] via 10.1.12.1, 00:02:21, Serial0/0.21
> > >
> > > D 3.0.0.0/8 [90/2297856] via 10.1.12.1, 00:02:21, Serial0/0.21
> > >
> > > * *
> > >
> > > *On R3*
> > >
> > >
> > >
> > > *R3#Show ip route eigrp*
> > >
> > >
> > >
> > > D 2.0.0.0/8 [90/2809856] via 10.1.23.2, 00:01:57, Serial0/0.32
> > >
> > > D 3.0.0.0/8 [90/2809856] via 10.1.23.2, 00:01:57, Serial0/0.32
> > >
> > > 10.0.0.0/24 is subnetted, 2 subnets
> > >
> > >
> > >
> > > D 10.1.12.0 [90/2681856] via 10.1.23.2, 00:01:57, Serial0/0.32**
> > >
> > >
> > >
> > > * *
> > >
> > > *Task 2*
> > >
> > >
> > >
> > > Configure R1 such that R2 and R3 use network 2.0.0.0 /8 as candidate
> > > default.
> > >
> > >
> > >
> > >
> > >
> > > *On R1*
> > >
> > >
> > >
> > > R1(config)#*ip default-network 2.0.0.0*
> > >
> > >
> > >
> > > *To verify the configuration:*
> > >
> > > * *
> > >
> > > *On R2*
> > >
> > >
> > >
> > > *R2#Show ip route eigrp*
> > >
> > > * *
> > >
> > > *D* 2.0.0.0/8 [90/2297856] via 10.1.12.1, 00:00:41, Serial1/0.21*
> > >
> > > D 3.0.0.0/8 [90/2297856] via 10.1.12.1, 00:07:55, Serial1/0.21
> > >
> > >
> > >
> > > *Note the asterisk reveals that R2 is using that network as the
> candidate
> > > default.*
> > >
> > >
> > >
> > > *To test the configuration:*
> > >
> > > * *
> > >
> > > *On R2*
> > >
> > >
> > >
> > > *R2#Ping 4.4.4.4*
> > >
> > >
> > >
> > > Type escape sequence to abort.
> > >
> > > Sending 5, 100-byte ICMP Echos to 4.4.4.4, timeout is 2 seconds:
> > >
> > > !!!!!
> > >
> > > Success rate is 100 percent (5/5), round-trip min/avg/max = 8/26/60 ms
> > >
> > >
> > >
> > > *To verify the configuration on R3:*
> > >
> > >
> > >
> > > *R3#Show ip route eigrp*
> > >
> > >
> > >
> > > *D* 2.0.0.0/8 [90/2809856] via 10.1.23.2, 00:04:24, Serial1/0.32*
> > >
> > > D 3.0.0.0/8 [90/2809856] via 10.1.23.2, 00:10:39, Serial1/0.32
> > >
> > > 10.0.0.0/24 is subnetted, 2 subnets
> > >
> > > D 10.1.12.0 [90/2681856] via 10.1.23.2, 00:10:39, Serial1/0.32
> > >
> > > * *
> > >
> > > *R3#Ping 4.4.4.4*
> > >
> > >
> > >
> > > Type escape sequence to abort.
> > >
> > > Sending 5, 100-byte ICMP Echos to 4.4.4.4, timeout is 2 seconds:
> > >
> > > !!!!!
> > >
> > > Success rate is 100 percent (5/5), round-trip min/avg/max = 4/32/92 ms
> > >
> > >
> > >
> > >
> > >
> > > *Task 3*
> > >
> > >
> > >
> > > Configure R2 such that *R3* does NOT use network 2.0.0.0 /8 as a
> candidate
> > > default.
> > >
> > >
> > >
> > >
> > >
> > > *On R2*
> > >
> > >
> > >
> > > R2(config)#router eigrp 100
> > >
> > > R2(config-router)#*no default-information allowed out*
> > >
> > >
> > >
> > > R2#Clear ip eigrp neighbor
> > >
> > >
> > >
> > > *Note the "no default-information allowed out" disables the
> redistribution
> > > of default route, meaning R3 will no longer use network 2.0.0.0 /8 as
> its
> > > candidate default, but it will still have that network in its routing
> table.
> > > *
> > >
> > >
> > >
> > > *To verify the configuration:*
> > >
> > > * *
> > >
> > > *On R2*
> > >
> > >
> > >
> > > *R2#Show ip route eigrp *
> > >
> > >
> > >
> > > *D* 2.0.0.0/8* [90/2297856] via 10.1.12.1, 00:00:25, Serial1/0.21
> > >
> > > D 3.0.0.0/8 [90/2297856] via 10.1.12.1, 00:00:25, Serial1/0.21
> > >
> > >
> > >
> > > *On R3*
> > >
> > >
> > >
> > > *R3#Show ip route eigrp*
> > >
> > >
> > >
> > > *D 2.0.0.0/8* [90/2809856] via 10.1.23.2, 00:01:04, Serial1/0.32
> > >
> > > D 3.0.0.0/8 [90/2809856] via 10.1.23.2, 00:01:04, Serial1/0.32
> > >
> > > 10.0.0.0/24 is subnetted, 2 subnets
> > >
> > > D 10.1.12.0 [90/2681856] via 10.1.23.2, 00:01:06, Serial1/0.32
> > >
> > >
> > >
> > > *To test the configuration:*
> > >
> > > * *
> > >
> > > *On R3*
> > >
> > > * *
> > >
> > > * *
> > >
> > > *R3#Ping 4.4.4.4*
> > >
> > >
> > >
> > > Type escape sequence to abort.
> > >
> > > Sending 5, 100-byte ICMP Echos to 4.4.4.4, timeout is 2 seconds:
> > >
> > > .....
> > >
> > > Success rate is 0 percent (0/5)
> > >
> > >
> > >
> > >
> > >
> > > *Task 4*
> > >
> > >
> > >
> > > Remove the command that was entered in the previous task from R2, and
> > > configure R3 to accomplish the same task, if this configuration is
> performed
> > > correctly, R3 should NOT use network 2.0.0.0 /8 as the candidate
> default.
> > >
> > >
> > >
> > >
> > >
> > > *To remove the command from R2:*
> > >
> > >
> > >
> > > *On R2*
> > >
> > >
> > >
> > > R2(config)#router eigrp 100
> > >
> > > R2(config-router)#*default-information allowed out*
> > >
> > >
> > >
> > > R2#cle ip eigrp neighbor
> > >
> > >
> > >
> > > *To verify R2's configuration:*
> > >
> > > * *
> > >
> > > *On R2*
> > >
> > >
> > >
> > > *R2#sh run | s router eigrp *
> > >
> > >
> > >
> > > router eigrp 100
> > >
> > > network 10.1.12.2 0.0.0.0
> > >
> > > network 10.1.23.2 0.0.0.0
> > >
> > > no auto-summary
> > >
> > >
> > >
> > > *To verify the configuration on R3*
> > >
> > > * *
> > >
> > > *On R3*
> > >
> > >
> > >
> > > *R3#Show ip route eigrp*
> > >
> > > * *
> > >
> > > *D* 2.0.0.0/8* [90/2809856] via 10.1.23.2, 00:00:58, Serial1/0.32
> > >
> > > D 3.0.0.0/8 [90/2809856] via 10.1.23.2, 00:00:58, Serial1/0.32
> > >
> > > 10.0.0.0/24 is subnetted, 2 subnets
> > >
> > > D 10.1.12.0 [90/2681856] via 10.1.23.2, 00:01:00, Serial1/0.32
> > >
> > >
> > >
> > > *Note R3 uses network 2.0.0.0 /8 as candidate default. To configure R3
> to
> > > accomplish the same task:*
> > >
> > >
> > >
> > > *On R3*
> > >
> > >
> > >
> > > R3(config)#router eigrp 100
> > >
> > > R3(config-router)#*no default-information allowed in*
> > >
> > >
> > >
> > > R3#cle ip eigrp nei
> > >
> > >
> > >
> > > *Note from R3's perspective it should disable the redistribution of the
> > > default route inbound, therefore, the direction of the command is
> configured
> > > inbound. *
> > >
> > > * *
> > >
> > > *Note if R2 enters the "no default-information allowed in", then,
> > > neither R2 nor R3 will receive the default route.*
> > >
> > >
> > >
> > > *To test and verify the configuration:*
> > >
> > > * *
> > >
> > > *On R3*
> > >
> > >
> > >
> > > *R3#Show ip route eigrp*
> > >
> > >
> > >
> > > *D 2.0.0.0/8* [90/2809856] via 10.1.23.2, 00:02:38, Serial1/0.32
> > >
> > > D 3.0.0.0/8 [90/2809856] via 10.1.23.2, 00:02:38, Serial1/0.32
> > >
> > > 10.0.0.0/24 is subnetted, 2 subnets
> > >
> > > D 10.1.12.0 [90/2681856] via 10.1.23.2, 00:02:38, Serial1/0.32
> > >
> > >
> > >
> > > *Task 5*
> > > **
> > > **NOW LET'S CONNECT THE THREE ROUTERS TO THE SAME ETHERNET SEGMENT WITH
> A
> > > NETWORK ADDRESS OF 10.1.1.0 /24, WHERE R1'S IP ADDRESS IS 10.1.1.1/24,
> > > R2'S IP ADDRESS IS 10.1.1.2/24 AND R3'S IP ADDRESS IS 10.1.1.3/24.
> > > R1 IS STILL CONFIGURED WITH THE THREE LOOPBACK INTERFACES 2.0.0.0/8,
> > > 3.0.0.0/8 AND 4.0.0.0/8.
> > >
> > > *Task 6*
> > > Configure Eigrp on all routers and advertise their directly connected
> > > interfaces in AS 100. R1 should NOT advertise network 4.0.0.0 /8 in
> this
> > > routing protocol.
> > > *
> > >
> > >
> > >
> > >
> > >
> > > On R1
> > >
> > >
> > >
> > > R1(config-if)#router eigrp 100
> > >
> > > R1(config-router)#no au
> > >
> > > R1(config-router)#network 2.0.0.0
> > >
> > > R1(config-router)#Network 3.0.0.0
> > >
> > > R1(config-router)#Network 10.1.1.1 0.0.0.0
> > >
> > >
> > >
> > > On R2
> > >
> > >
> > >
> > > R2(config)#Router eigrp 100
> > >
> > > R2(config-router)#no au
> > >
> > > R2(config-router)#network 10.1.1.2 0.0.0.0
> > >
> > >
> > >
> > > On R3
> > >
> > >
> > >
> > > R3(config)#Router eigrp 100
> > >
> > > R3(config-router)#no au
> > >
> > > R3(config-router)#network 10.1.1.3 0.0.0.0
> > >
> > >
> > >
> > > To verify the configuration
> > >
> > >
> > >
> > > On R2
> > >
> > >
> > >
> > > R2#Show ip route eigrp
> > >
> > >
> > >
> > > D 2.0.0.0/8 [90/409600] via 10.1.1.1, 00:15:21, Ethernet0/0
> > >
> > > D 3.0.0.0/8 [90/409600] via 10.1.1.1, 00:15:21, Ethernet0/0
> > >
> > >
> > >
> > > On R3
> > >
> > >
> > >
> > > R3#Show ip route eigrp
> > >
> > >
> > >
> > > D 2.0.0.0/8 [90/409600] via 10.1.1.1, 00:15:06, Ethernet0/0
> > >
> > > D 3.0.0.0/8 [90/409600] via 10.1.1.1, 00:15:06, Ethernet0/0
> > >
> > >
> > >
> > > Note R1 should not have any Eigrp routes in its routing table.
> > >
> > >
> > >
> > > Task 7
> > >
> > >
> > >
> > > Configure R1 to advertise Network 2.0.0.0 /8 and Network 3.0.0.0 /8 as
> > > candidate default in this routing domain.
> > >
> > >
> > >
> > >
> > >
> > > On R1
> > >
> > >
> > >
> > > R1(config)#ip default-network 2.0.0.0
> > >
> > > R1(config)#ip default-network 3.0.0.0
> > >
> > >
> > >
> > > To verify the configuration:
> > >
> > >
> > >
> > > On R2
> > >
> > >
> > >
> > > R2#Show ip route eigrp
> > >
> > >
> > >
> > > D* 2.0.0.0/8 [90/409600] via 10.1.1.1, 00:02:55, Ethernet0/0
> > >
> > > D* 3.0.0.0/8 [90/409600] via 10.1.1.1, 00:02:52, Ethernet0/0
> > >
> > >
> > >
> > > On R3
> > >
> > >
> > >
> > > R3#Show ip route eigrp
> > >
> > >
> > >
> > > D* 2.0.0.0/8 [90/409600] via 10.1.1.1, 00:03:56, Ethernet0/0
> > >
> > > D* 3.0.0.0/8 [90/409600] via 10.1.1.1, 00:03:52, Ethernet0/0
> > >
> > >
> > >
> > > Note both R2 and R3 use networks 2.0.0.0 /8 and 3.0.0.0 /8 as their
> > > candidate default.
> > >
> > >
> > >
> > > Task 8
> > >
> > >
> > >
> > > Configure R2 and R3 such that R2 uses network 2.0.0.0 /8 and R3 uses
> > > network 3.0.0.0 /8 as their candidate default.
> > >
> > >
> > >
> > >
> > >
> > > On R2
> > >
> > >
> > >
> > > To configure this task, an access-list is written to identify the
> network
> > > (Network 2.0.0.0 /8 in this case), then, the access-list is referenced
> in
> > > the "Default-information allowed in" command, which tells the router
> that
> > > ONLY the network that is permitted in the access-list should be used as
> > > candidate default.
> > >
> > >
> > >
> > > R2(config)#access-list 2 permit 2.0.0.0
> > >
> > >
> > >
> > > R2(config)#router eigrp 100
> > >
> > > R2(config-router)#default-information allowed in 2
> > >
> > >
> > >
> > > R2#cle ip eigrp neigh
> > >
> > >
> > >
> > > R2#Show ip route eigrp
> > >
> > >
> > >
> > > D* 2.0.0.0/8 [90/409600] via 10.1.1.1, 00:01:41, FastEthernet0/0
> > >
> > > D 3.0.0.0/8 [90/409600] via 10.1.1.1, 00:01:41, FastEthernet0/0
> > >
> > >
> > >
> > > The following shows the configuration of R3:
> > >
> > >
> > >
> > > On R3
> > >
> > >
> > >
> > > R3(config)#access-list 3 permit 3.0.0.0
> > >
> > >
> > >
> > > R3(config)#Router eigrp 100
> > >
> > > R3(config-router)#default-information allowed in 3
> > >
> > >
> > >
> > > R3#cle ip eigrp neighbor
> > >
> > >
> > >
> > >
> > >
> > > To verify the configuration:
> > >
> > >
> > >
> > > On R3
> > >
> > >
> > >
> > > R3#Show ip route eigrp
> > >
> > >
> > >
> > > D 2.0.0.0/8 [90/409600] via 10.1.1.1, 00:01:01, Ethernet0/0
> > >
> > > D* 3.0.0.0/8 [90/409600] via 10.1.1.1, 00:01:01, Ethernet0/0
> > >
> > >
> > >
> > > To test the configuration:
> > >
> > >
> > >
> > > On R2
> > >
> > >
> > >
> > > R2#Ping 4.4.4.4
> > >
> > >
> > >
> > > Type escape sequence to abort.
> > >
> > > Sending 5, 100-byte ICMP Echos to 4.4.4.4, timeout is 2 seconds:
> > >
> > > !!!!!
> > >
> > > Success rate is 100 percent (5/5), round-trip min/avg/max = 4/11/24 ms
> > >
> > >
> > >
> > > On R3
> > >
> > >
> > >
> > > R3#Ping 4.4.4.4
> > >
> > >
> > >
> > > Type escape sequence to abort.
> > >
> > > Sending 5, 100-byte ICMP Echos to 4.4.4.4, timeout is 2 seconds:
> > >
> > > !!!!!
> > >
> > > Success rate is 100 percent (5/5), round-trip min/avg/max = 4/13/24 ms
> > > * Once again i am sorry for the long post, but i hope this helped.
> > >
> > > On Mon, Nov 24, 2008 at 4:26 PM, Hobbs <deadheadblues_at_gmail.com>
> wrote:
> > >
> > >> Yep, I had the router generated via RIP, then redistributed into EIGRP
> > >>
> > >> R6-----[EIGRP]-----R7------[RIP]-------R8 <---- generates default
> > >>
> > >> R7#show ip route | inc 0.0.0.0
> > >> Gateway of last resort is 150.100.78.8 to network 0.0.0.0
> > >> 20.0.0.0/24 is subnetted, 1 subnets
> > >> R* 0.0.0.0/0 [120/1] via 150.100.78.8, 00:00:09, Serial1/0
> > >> R7#
> > >>
> > >>
> > >>
> > >> On 11/24/08, Jason Madsen <madsen.jason_at_gmail.com> wrote:
> > >> >
> > >> > were you testing with a default route originating in the same EIGRP
> AS
> > >> or
> > >> > was it from another AS or another routing protocol? try your test
> again
> > >> > with the default route originated in say...rip, and then
> redistribute
> > >> into
> > >> > your EIGRP AS and see if what you get.
> > >> >
> > >> > Jason
> > >> >
> > >> > On Mon, Nov 24, 2008 at 4:11 PM, Hobbs <deadheadblues_at_gmail.com>
> wrote:
> > >> >
> > >> >> I know what it does for OSPF and the rest, but it appears it does
> > >> >> something
> > >> >> different (or nothing) for EIGRP
> > >> >>
> > >> >> R7(config)#router eigrp 1
> > >> >>
> > >> >> R7(config-router)#default-information ?
> > >> >> allowed Allow default information
> > >> >> in Accept default routing information
> > >> >> out Output default routing information
> > >> >>
> > >> >> I tried using "no default-information out" but the default route
> was
> > >> still
> > >> >> sent out.
> > >> >> I tried using "no default-information in" on another router but it
> > >> still
> > >> >> accepted the route.
> > >> >>
> > >> >> R6#show run | sec eigrp
> > >> >> router eigrp 1
> > >> >> network 150.100.0.0
> > >> >> no default-information in
> > >> >> no auto-summary
> > >> >>
> > >> >> R6#show ip route | inc Gate
> > >> >> Gateway of last resort is 150.100.56.7 to network 0.0.0.0
> > >> >>
> > >> >> thanks,
> > >> >>
> > >> >>
> > >> >> Blogs and organic groups at http://www.ccie.net
> > >> >>
> > >> >>
> _______________________________________________________________________
> > >> >> Subscription information may be found at:
> > >> >> http://www.groupstudy.com/list/CCIELab.html
> > >>
> > >>
> > >> Blogs and organic groups at http://www.ccie.net
> > >>
> > >>
> _______________________________________________________________________
> > >> Subscription information may be found at:
> > >> http://www.groupstudy.com/list/CCIELab.html
> > >>
> > >>
> > >>
> > >>
> > >>
> > >>
> > >>
> > >>
> > >
> > >
> > > --
> > > Narbik Kocharians
> > > CCSI#30832, CCIE# 12410 (R&S, SP, Security)
> > > www.MicronicsTraining
> > > www.Net-Workbooks.com <http://www.net-workbooks.com/> <
> http://www.net-workbooks.com/>
> > > Sr. Technical Instructor
> > >
> >
> >
> >
> > --
> > Narbik Kocharians
> > CCSI#30832, CCIE# 12410 (R&S, SP, Security)
> > www.MicronicsTraining
> > www.Net-Workbooks.com <http://www.net-workbooks.com/>
> > Sr. Technical Instructor
> >
> >
> > Blogs and organic groups at http://www.ccie.net
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
> >
> >
> >
> >
> >
> >
> >
>
> _________________________________________________________________
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> 12008
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
Blogs and organic groups at http://www.ccie.net
Received on Tue Apr 07 2009 - 08:56:55 ART
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