From: Connary, Julie Ann (jconnary@xxxxxxxxx)
Date: Wed Dec 27 2000 - 17:41:06 GMT-3
Hi Chuck,
here is is the config for one router and the table and the sho ip ospf
database router (if I put more in this email it just bounces back).
The scenario says to summarize all routes at the ospf border routers so
that only "one" route to an area appears in the routing table.
I've successfully done that by using the area x range xxxx xxxx command for
all but these frame relay interfaces. As you can see in
the routing table - there is only one route to any IA entry.
Thanks,
Julie Ann
show ip route run
Building configuration...
Current configuration:
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname r2
!
!
!
!
!
!
ip subnet-zero
no ip domain-lookup
!
cns event-service server
!
!
!
interface Ethernet0
--More-- ip address 137.20.20.2 255.255.255.0
!
interface Ethernet1
no ip address
shutdown
!
interface Serial0
no ip address
encapsulation frame-relay
frame-relay lmi-type ansi
!
interface Serial0.1 multipoint
ip address 150.100.32.2 255.255.255.224
ip ospf network point-to-multipoint
frame-relay map ip 150.100.32.4 210 broadcast
frame-relay map ip 150.100.32.10 210 broadcast
!
interface Serial0.2 point-to-point
ip address 150.200.16.2 255.255.240.0
frame-relay interface-dlci 201
!
interface Serial1
no ip address
--More-- shutdown
!
router ospf 1
area 0 range 150.100.0.0 255.255.0.0
area 2 range 137.20.0.0 255.255.0.0
area 2 virtual-link 192.168.1.11
summary-address 150.200.0.0 255.255.0.0
redistribute igrp 1 subnets route-map igrpin
network 137.20.0.0 0.0.255.255 area 2
network 150.100.0.0 0.0.255.255 area 0
default-information originate metric 100 metric-type 1
!
router igrp 1
redistribute ospf 1 route-map ospfin
network 150.200.0.0
!
ip classless
ip route 0.0.0.0 0.0.0.0 137.20.20.11
no ip http server
!
access-list 1 permit 150.100.0.0 0.0.255.255
access-list 1 permit 172.168.0.0 0.0.255.255
access-list 1 permit 137.20.0.0 0.0.255.255
--More-- access-list 1 permit 11.0.0.0 0.255.255.255
access-list 2 permit 150.200.0.0 0.0.255.255
access-list 2 permit 150.150.0.0 0.0.255.255
route-map igrpin permit 20
match ip address 2
set metric 100
set metric-type type-1
set tag 1
!
route-map ospfin permit 10
match ip address 1
set metric 1544 2000 255 1 1500
!
!
!
line con 0
exec-timeout 0 0
transport input none
line aux 0
line vty 0 4
login
!
end
--More--
r2#show ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter
area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route
Gateway of last resort is 137.20.20.11 to network 0.0.0.0
137.20.0.0/24 is subnetted, 1 subnets
C 137.20.20.0 is directly connected, Ethernet0
172.168.0.0/16 is variably subnetted, 2 subnets, 2 masks
O IA 172.168.10.0/24 [110/74] via 150.100.32.10, 00:45:45, Serial0.1
O IA 172.168.64.0/18 [110/134] via 150.100.32.10, 00:45:45, Serial0.1
150.100.0.0/16 is variably subnetted, 3 subnets, 2 masks
C 150.100.32.0/27 is directly connected, Serial0.1
O 150.100.32.4/32 [110/128] via 150.100.32.10, 00:45:55, Serial0.1
O 150.100.32.10/32 [110/64] via 150.100.32.10, 00:45:57, Serial0.1
150.200.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 150.200.16.0/20 is directly connected, Serial0.2
O 150.200.0.0/16 is a summary, 00:08:30, Null0
I 150.150.0.0/16 [100/8976] via 150.200.16.1, 00:00:09, Serial0.2
--More-- S* 0.0.0.0/0 [1/0] via 137.20.20.11
r2#show ip ops spf databss ase router
OSPF Router with ID (150.200.16.2) (Process ID 1)
Router Link States (Area 0)
LS age: 860
Options: (No TOS-capability, DC)
LS Type: Router Links
Link State ID: 150.200.16.2
Advertising Router: 150.200.16.2
LS Seq Number: 8000000B
Checksum: 0xF6DE
Length: 60
Area Border Router
AS Boundary Router
Number of Links: 3
Link connected to: a Virtual Link
(Link ID) Neighboring Router ID: 192.168.1.11
(Link Data) Router Interface address: 137.20.20.2
Number of TOS metrics: 0
TOS 0 Metrics: 10
--More--
Link connected to: another Router (point-to-point)
(Link ID) Neighboring Router ID: 172.168.10.65
(Link Data) Router Interface address: 150.100.32.2
Number of TOS metrics: 0
TOS 0 Metrics: 64
Link connected to: a Stub Network
(Link ID) Network/subnet number: 150.100.32.2
(Link Data) Network Mask: 255.255.255.255
Number of TOS metrics: 0
TOS 0 Metrics: 0
--More-- Routing Bit Set on this LSA
LS age: 1125
Options: (No TOS-capability, DC)
LS Type: Router Links
Link State ID: 172.168.10.65
Advertising Router: 172.168.10.65
LS Seq Number: 80000012
Checksum: 0xD0FA
Length: 60
Area Border Router
Number of Links: 3
Link connected to: another Router (point-to-point)
(Link ID) Neighboring Router ID: 150.200.16.2
(Link Data) Router Interface address: 150.100.32.10
Number of TOS metrics: 0
TOS 0 Metrics: 64
Link connected to: another Router (point-to-point)
(Link ID) Neighboring Router ID: 172.168.64.1
(Link Data) Router Interface address: 150.100.32.10
Number of TOS metrics: 0
TOS 0 Metrics: 64
--More--
Link connected to: a Stub Network
(Link ID) Network/subnet number: 150.100.32.10
(Link Data) Network Mask: 255.255.255.255
Number of TOS metrics: 0
TOS 0 Metrics: 0
--More-- Routing Bit Set on this LSA
LS age: 1201
Options: (No TOS-capability, DC)
LS Type: Router Links
Link State ID: 172.168.64.1
Advertising Router: 172.168.64.1
LS Seq Number: 8000000F
Checksum: 0xF8D0
Length: 48
Area Border Router
Number of Links: 2
Link connected to: another Router (point-to-point)
(Link ID) Neighboring Router ID: 172.168.10.65
(Link Data) Router Interface address: 150.100.32.4
Number of TOS metrics: 0
TOS 0 Metrics: 64
Link connected to: a Stub Network
(Link ID) Network/subnet number: 150.100.32.4
(Link Data) Network Mask: 255.255.255.255
Number of TOS metrics: 0
TOS 0 Metrics: 0
--More--
--More-- Adv Router is not-reachable
LS age: 5 (DoNotAge)
Options: (No TOS-capability, DC)
LS Type: Router Links
Link State ID: 192.168.1.11
Advertising Router: 192.168.1.11
LS Seq Number: 80000003
Checksum: 0xB0A
Length: 36
Area Border Router
Number of Links: 1
Link connected to: a Virtual Link
(Link ID) Neighboring Router ID: 150.200.16.2
(Link Data) Router Interface address: 137.20.20.11
Number of TOS metrics: 0
TOS 0 Metrics: 1
Router Link States (Area 2)
LS age: 867
--More-- Options: (No TOS-capability, DC)
LS Type: Router Links
Link State ID: 150.200.16.2
Advertising Router: 150.200.16.2
LS Seq Number: 8000000B
Checksum: 0xC80A
Length: 36
Area Border Router
AS Boundary Router
Number of Links: 1
Link connected to: a Transit Network
(Link ID) Designated Router address: 137.20.20.2
(Link Data) Router Interface address: 137.20.20.2
Number of TOS metrics: 0
TOS 0 Metrics: 10
--More-- Routing Bit Set on this LSA
LS age: 950
Options: (No TOS-capability, DC)
LS Type: Router Links
Link State ID: 192.168.1.11
Advertising Router: 192.168.1.11
LS Seq Number: 8000000A
Checksum: 0x2CB
Length: 36
Area Border Router
Number of Links: 1
Link connected to: a Transit Network
(Link ID) Designated Router address: 137.20.20.2
(Link Data) Router Interface address: 137.20.20.11
Number of TOS metrics: 0
TOS 0 Metrics: 1
r2#
At 12:28 PM 12/27/2000 -0800, Chuck Larrieu wrote:
>Post your configs and your sh ip route output, please.
>
>Chuck
>
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>Connary, Julie Ann
>Sent: Wednesday, December 27, 2000 12:20 PM
>To: ccielab@groupstudy.com
>Subject: RE: ospf point-to-multipoint networks and the /32 route
>
>Hi
>
>These are not loopbacks,
>
>they are frame-relay point-to-multipoint interfaces.
>
>Julie ann
>
>
>At 12:07 PM 12/27/2000 -0800, Chuck Larrieu wrote:
> >On the particular interface ( loopback? ) ip ospf network point-to-point
> >
> >-----Original Message-----
> >From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> >Connary, Julie Ann
> >Sent: Wednesday, December 27, 2000 12:01 PM
> >To: ccielab@groupstudy.com
> >Subject: ospf point-to-multipoint networks and the /32 route
> >
> >Hi all,
> >
> >how do you get ospf to not advertise a /32 network for a
> >point-to-multipoint network. In the
> >ospf database on another router when I issue "show ip ospf database router"
> >I see the following:
> >
> >Link connected to: a Stub Network
> > (Link ID) Network/subnet number: 150.100.32.2
> > (Link Data) Network Mask: 255.255.255.255
> > Number of TOS metrics: 0
> > TOS 0 Metrics: 0
> >
> >Why does ospf see the point-to-multipoint frame-relay network as a stub?
> >
> >Thanks in advance,
> >
> >Julie Ann
> >------------------------------------------------------------------------
> > Julie Ann Connary
> > | | Network Consulting Engineer
> > ||| ||| Federal Support Program
> > .|||||. .|||||. 13635 Dulles Technology Drive,
> >Herndon VA 20171
> > .:|||||||||:.:|||||||||:. Pager: 1-888-642-0551
> > c i s c o S y s t e m s Email: jconnary@cisco.com
> >
> >------------------------------------------------------------------------
> >
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