From: Peter van Oene (pvo@usermail.com)
Date: Mon Sep 02 2002 - 15:30:43 GMT-3
All of your type 7's are set with options indicating no 7 to 5
redistribution. I'm not entirely sure why, though that is likely the key
issue here.
At 01:06 PM 9/2/2002 -0400, Chris Larson wrote:
>I am having a similiar issue with the same topo and config. Only the IP
>addresses are different and I am redistributing connected not rip.
>
>The type 7 to the ABR is fine, but the ABR is not translating the 7's into
>5's for the rest of the OSPF domain.
>
>
> redistributeConnected ------>R1(area 3 nssa)-----area3-----R2(area 3
>nssa ABR)----------area0------------
>
>R1 is ASBR in area 3. R2 is ABR and has connection to area 0. R5 is in area
>0 and does not have type 5 generated from R2.
>
>
>R2#sh ip ospf dat ext
>
> OSPF Router with ID (200.0.0.2) (Process ID 1)
>
>
> Type-5 AS External Link States
>
> Routing Bit Set on this LSA
> LS age: 1905
> Options: (No TOS-capability, DC)
> LS Type: AS External Link
> Link State ID: 150.50.4.0 (External Network Number )
> Advertising Router: 200.0.0.8
> LS Seq Number: 80000053
> Checksum: 0xD7D8
> Length: 36
> Network Mask: /24
> Metric Type: 2 (Larger than any link state path)
> TOS: 0
> Metric: 20
> Forward Address: 0.0.0.0
> External Route Tag: 0
>
>This is from a different area
>
>None of the other routers see any type 5's being generated from R2.
>
>
>
>
>
>
>R2#sh ip ospf dat nssa-external
>
> OSPF Router with ID (200.0.0.2) (Process ID 1)
>
>
> Type-7 AS External Link States (Area 3)
>
> LS age: 127
> Options: (No TOS-capability, No Type 7/5 translation, DC)
> LS Type: AS External Link
> Link State ID: 0.0.0.0 (External Network Number )
> Advertising Router: 200.0.0.2
> LS Seq Number: 80000002
> Checksum: 0xEFF5
> Length: 36
> Network Mask: /0
> Metric Type: 2 (Larger than any link state path)
> TOS: 0
> Metric: 1
> Forward Address: 0.0.0.0
> External Route Tag: 0
>
> LS age: 1810
> Options: (No TOS-capability, No Type 7/5 translation, DC)
> LS Type: AS External Link
> Link State ID: 150.50.17.0 (External Network Number )
> Advertising Router: 200.0.0.1
> LS Seq Number: 80000002
> Checksum: 0x346B
> Length: 36
> Network Mask: /24
> Metric Type: 1 (Comparable directly to link state metric)
> TOS: 0
> Metric: 20
> Forward Address: 150.50.17.1
> External Route Tag: 0
>
> LS age: 1813
> Options: (No TOS-capability, No Type 7/5 translation, DC)
> LS Type: AS External Link
> Link State ID: 150.50.18.0 (External Network Number )
> Advertising Router: 200.0.0.1
> LS Seq Number: 80000002
> Checksum: 0x2975
> Length: 36
> Network Mask: /24
> Metric Type: 1 (Comparable directly to link state metric)
> TOS: 0
> Metric: 20
> Forward Address: 150.50.17.1
> External Route Tag: 0
>
> Routing Bit Set on this LSA
> LS age: 1557
> Options: (No TOS-capability, No Type 7/5 translation, DC)
> LS Type: AS External Link
> Link State ID: 150.50.200.0 (External Network Number )
> Advertising Router: 200.0.0.1
> LS Seq Number: 80000004
> Checksum: 0x3CAC
> Length: 36
> Network Mask: /22
> Metric Type: 1 (Comparable directly to link state metric)
> TOS: 0
> Metric: 20
> Forward Address: 150.50.17.1
> External Route Tag: 0
>
> Routing Bit Set on this LSA
> LS age: 1821
> Options: (No TOS-capability, No Type 7/5 translation, DC)
> LS Type: AS External Link
> Link State ID: 200.0.0.1 (External Network Number )
> Advertising Router: 200.0.0.1
> LS Seq Number: 80000002
> Checksum: 0xB3FB
> Length: 36
> Network Mask: /32
> Metric Type: 1 (Comparable directly to link state metric)
> TOS: 0
> Metric: 20
> Forward Address: 150.50.17.1
> External Route Tag: 0
>
>
>R5#sh ip ospf dat external
>
> OSPF Router with ID (200.0.0.5) (Process ID 1)
>
>
> Type-5 AS External Link States
>
> Routing Bit Set on this LSA
> LS age: 60
> Options: (No TOS-capability, DC)
> LS Type: AS External Link
> Link State ID: 150.50.4.0 (External Network Number )
> Advertising Router: 200.0.0.8
> LS Seq Number: 80000054
> Checksum: 0xD5D9
> Length: 36
> Network Mask: /24
> Metric Type: 2 (Larger than any link state path)
> TOS: 0
> Metric: 20
> Forward Address: 0.0.0.0
> External Route Tag: 0
>
>
>CONFIGS::
>
>
>hostname R1
>!
>netbios access-list host nofile deny FIL*
>!
>no ip subnet-zero
>no ip domain-lookup
>ipx routing 0001.0001.0001
>!
>!
>!
>!
>!
>interface Loopback0
> ip address 200.0.0.1 255.255.255.255
> no ip directed-broadcast
>!
>interface Ethernet0
> ip address 150.50.200.1 255.255.255.0
> ip helper-address 1.1.1.1
> ip helper-address 1.1.1.2
> no ip directed-broadcast
> no keepalive
>!
>interface Ethernet1
> ip address 150.50.17.1 255.255.255.0
> no ip directed-broadcast
> ipx network 12
> ipx netbios input-access-filter host nofile
>!
>interface Serial0
> no ip address
> no ip directed-broadcast
> no ip mroute-cache
> shutdown
> no fair-queue
>!
>interface Serial1
> no ip address
> no ip directed-broadcast
> shutdown
>!
>interface Virtual-TokenRing0
> ip address 150.50.18.1 255.255.255.0
> no ip directed-broadcast
> ip ospf network point-to-point
> ring-speed 16
>!
>router ospf 1
> area 3 nssa
> summary-address 150.50.200.0 255.255.252.0
> redistribute connected metric-type 1 subnets
> network 150.50.17.0 0.0.0.255 area 3
> network 150.50.18.0 0.0.0.255 area 3
>!
>ip nat translation timeout never
>ip nat translation tcp-timeout never
>ip nat translation udp-timeout never
>ip nat translation finrst-timeout never
>ip nat translation syn-timeout never
>ip nat translation dns-timeout never
>ip nat translation icmp-timeout never
>ip classless
>!
>access-list 5 permit 200.0.0.1
>access-list 5 permit 150.50.200.0 0.0.0.255
>access-list 1001 deny FFFFFFFF 0
>route-map conn permit 10
> match ip address 5
>!
>route-map conn deny 20
>!
>!
>!
>!
>ipx router eigrp 1
> network 12
>!
>!
>ipx router rip
> no network all
>!
>!
>!
>!
>line con 0
> logging synchronous
> transport input none
>line aux 0
>line vty 0 4
> login
>!
>end
>
>
>
>hostname R2
>!
>!
>memory-size iomem 20
>ip subnet-zero
>no ip domain-lookup
>!
>!
>!
>!
>!
>interface Loopback0
> ip address 200.0.0.2 255.255.255.255
> no ip directed-broadcast
>!
>interface FastEthernet0/0
> ip address 150.50.17.2 255.255.255.0
> no ip directed-broadcast
>!
>interface Serial0/0
> no ip address
> no ip directed-broadcast
> encapsulation frame-relay
> no ip mroute-cache
> no fair-queue
> clockrate 56000
> frame-relay traffic-shaping
> frame-relay class classmap
>!
>interface Serial0/0.1 point-to-point
> ip address 150.50.24.2 255.255.255.0
> no ip directed-broadcast
> ip ospf network point-to-multipoint
> frame-relay interface-dlci 104
>!
>interface Serial0/0.2 multipoint
> ip address 150.50.100.2 255.255.255.224
> no ip directed-broadcast
> ip ospf message-digest-key 1 md5 cisco
> ip ospf network non-broadcast
> frame-relay map ip 150.50.100.5 105 broadcast
> frame-relay map ip 150.50.100.6 106 broadcast
>!
>interface BRI0/0
> no ip address
> no ip directed-broadcast
> shutdown
>!
>router ospf 1
> network 150.50.17.0 0.0.0.255 area 3
> network 150.50.24.0 0.0.0.255 area 1
> network 150.50.100.0 0.0.0.31 area 0
> network 200.0.0.2 0.0.0.0 area 100
> neighbor 150.50.100.5
> neighbor 150.50.100.6
> area 0 authentication message-digest
> area 1 stub no-summary
> area 3 nssa default-information-originate
>!
>ip classless
>no ip http server
>!
>!
>map-class frame-relay classmap
> frame-relay cir 58000
> no frame-relay adaptive-shaping
>!
>!
>line con 0
> transport input none
>line aux 0
>line vty 0 4
> login
>!
>no scheduler allocate
>end
>
>
>
>
>hostname R5
>!
>!
>!
>!
>!
>!
>ip subnet-zero
>no ip domain-lookup
>!
>cns event-service server
>!
>!
>!
>!
>!
>interface Loopback0
> ip address 200.0.0.5 255.255.255.255
> no ip directed-broadcast
>!
>interface Ethernet0
> ip address 150.50.7.5 255.255.255.128
> no ip directed-broadcast
> ip ospf message-digest-key 1 md5 cisco
>!
>interface Serial0
> ip address 150.50.100.5 255.255.255.224
> no ip directed-broadcast
> encapsulation frame-relay
> ip ospf message-digest-key 1 md5 cisco
> ip ospf priority 0
> no ip mroute-cache
> frame-relay map ip 150.50.100.2 501 broadcast
> frame-relay map ip 150.50.100.6 501 broadcast
> frame-relay lmi-type cisco
>!
>interface Serial1
> no ip address
> no ip directed-broadcast
> shutdown
>!
>router ospf 1
> area 0 authentication message-digest
> network 150.50.7.0 0.0.0.127 area 0
> network 150.50.100.0 0.0.0.31 area 0
> network 200.0.0.5 0.0.0.0 area 100
>!
>ip classless
>no ip http server
>!
>!
>!
>line con 0
> transport input none
>line aux 0
>line vty 0 4
>!
>end
>
>
>
>
>
>
>
>----- Original Message -----
>From: "Landon Fitts" <l.fitts@mindspring.com>
>To: "Keith Steller" <ksteller@attbi.com>; <ccielab@groupstudy.com>
>Sent: Monday, September 02, 2002 12:25 PM
>Subject: Re: NSSA and type 7 LSA's
>
>
> > Keith.
> >
> > This is correct behavior. The ASBR that is part of the NSSA sends the RIP
> > routes as LSA type 7 (N2/N1), but the ABR sends those LSAs out as type 5
> > (E2/E1) into the backbone. The type 7 LSAs are only distributed within
>the
> > NSSA area.
> >
> > Landon
> >
> > ----- Original Message -----
> > From: "Keith Steller" <ksteller@attbi.com>
> > To: <ccielab@groupstudy.com>
> > Sent: Monday, September 02, 2002 11:26 AM
> > Subject: NSSA and type 7 LSA's
> >
> >
> > > Hello All-
> > >
> > > I have a question for someone. I have an NSSA configured to allow
> > > redistibution of a few RIP routes into the OSPF net. I have everything
> > > working fine except for one thing. I can see the RIP routes, denoted by
> > the
> > > N2 in the routing table on the ABR where the "Area X NSSA" is
>configured.
> > I
> > > dont see those type 7 routes being advertised to other routers in the
>OSPF
> > > network though. I'm wondering if that's correct behavior. I can get
> > > connectivity to the RIP net (146.10.18.x) when I add the "default
> > > information originate always" on the ABR with the NSSA, as he can see
>the
> > > RIP routes from there. With that configured, everyone sends packets to
>him
> > > when they dont have a route available. Shouldnt the NSSA allow the RIP
> > > network to be advrtised to all routers in the OSPF network? I attached
>the
> > > configs below. R1 is the ASBR with RIP and OSPF. R2 is the other end of
> > the
> > > NSSA ABR (connected to Area 0), and R5 is also on th backbone on area 0.
> > >
> > > Thanks for the assistance,
> > >
> > > Keith
> > >
> > > R1
> > > !
> > > router ospf 100
> > > redistribute rip subnets
> > > passive-interface TokenRing0
> > > network 146.10.11.0 0.0.0.255 area 11
> > > network 146.10.21.0 0.0.0.3 area 21
> > > default-metric 5
> > > area 11 range 146.10.11.0 255.255.255.0
> > > area 21 nssa
> > > !
> > > router rip
> > > version 1
> > > redistribute ospf 100 metric 10
> > > passive-interface Loopback100
> > > passive-interface Serial1
> > > network 146.10.0.0
> > > neighbor 146.10.18.8
> > > !
> > > r1#sh 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, * - candidate
> > > default
> > > U - per-user static route, o - ODR
> > >
> > > Gateway of last resort is 146.10.21.2 to network 0.0.0.0
> > >
> > > 146.10.0.0/16 is variably subnetted, 6 subnets, 2 masks
> > > C 146.10.18.0/24 is directly connected, TokenRing0
> > > C 146.10.21.0/30 is directly connected, Serial1
> > > C 146.10.11.0/24 is directly connected, Loopback100
> > > R 146.10.88.0/24 [120/1] via 146.10.18.8, 00:00:17, TokenRing0
> > > R 146.10.78.0/24 [120/1] via 146.10.18.8, 00:00:17, TokenRing0
> > > C 146.10.118.0/24 is directly connected, Loopback200
> > > O*IA 0.0.0.0/0 [110/65] via 146.10.21.2, 00:12:41, Serial1
> > > r1#
> > > ***************************************
> > > R2
> > > !
> > > router ospf 100
> > > network 146.10.10.0 0.0.0.255 area 0
> > > network 146.10.21.0 0.0.0.3 area 21
> > > network 146.10.22.0 0.0.0.255 area 22
> > > neighbor 146.10.10.6 priority 1
> > > neighbor 146.10.10.5 priority 5
> > > default-information originate always
> > > area 21 nssa default-information-originate no-summary
> > > area 22 range 146.10.22.0 255.255.255.0
> > > !
> > >
> > > r2#sh 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, * - candidate
> > > default
> > > U - per-user static route, o - ODR
> > >
> > > Gateway of last resort is not set
> > >
> > > 146.10.0.0/16 is variably subnetted, 12 subnets, 3 masks
> > > C 146.10.24.0/24 is directly connected, Serial0.1
> > > O N2 146.10.18.0/24 [110/5] via 146.10.21.1, 00:14:30, Serial1
> > > C 146.10.21.0/30 is directly connected, Serial1
> > > C 146.10.22.0/24 is directly connected, Loopback100
> > > C 146.10.10.0/24 is directly connected, Serial0
> > > O N2 146.10.11.0/24 [110/5] via 146.10.21.1, 00:14:30, Serial1
> > > O IA 146.10.57.0/25 [110/74] via 146.10.10.6, 00:14:30, Serial0
> > > [110/74] via 146.10.10.5, 00:14:30, Serial0
> > > O IA 146.10.55.0/24 [110/65] via 146.10.10.5, 00:14:30, Serial0
> > > O N2 146.10.88.0/24 [110/5] via 146.10.21.1, 00:14:30, Serial1
> > > O N2 146.10.78.0/24 [110/5] via 146.10.21.1, 00:14:30, Serial1
> > > O IA 146.10.66.0/24 [110/65] via 146.10.10.6, 00:14:30, Serial0
> > > O N2 146.10.118.0/24 [110/5] via 146.10.21.1, 00:14:30, Serial1
> > > r2#
> > > Type-7 AS External Link States (Area 21)
> > >
> > > Link ID ADV Router Age Seq# Checksum Tag
> > > 146.10.11.0 146.10.118.1 445 0x80000002 0xF944 0
> > > 146.10.18.0 146.10.118.1 445 0x80000002 0xAC8A 0
> > > 146.10.21.0 146.10.118.1 445 0x80000002 0x79BD 0
> > > 146.10.78.0 146.10.118.1 445 0x80000002 0x16E4 0
> > > 146.10.88.0 146.10.118.1 445 0x80000002 0xA749 0
> > > 146.10.118.0 146.10.118.1 445 0x80000002 0x5C76 0
> > > ****************************************************
> > > R5
> > > !
> > > router ospf 100
> > > network 146.10.10.0 0.0.0.255 area 0
> > > network 146.10.55.0 0.0.0.255 area 55
> > > network 146.10.57.0 0.0.0.127 area 57
> > > neighbor 146.10.10.2 priority 10
> > > area 55 range 146.10.55.0 255.255.255.0
> > > !
> > > r5#sh 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, * - candidate
> > > default
> > > U - per-user static route, o - ODR
> > >
> > > Gateway of last resort is 146.10.10.2 to network 0.0.0.0
> > >
> > > 146.10.0.0/16 is variably subnetted, 6 subnets, 3 masks
> > > O IA 146.10.21.0/30 [110/128] via 146.10.10.2, 00:16:28, Serial0.501
> > > O IA 146.10.22.0/24 [110/65] via 146.10.10.2, 00:16:28, Serial0.501
> > > C 146.10.10.0/24 is directly connected, Serial0.501
> > > C 146.10.57.0/25 is directly connected, Ethernet0
> > > C 146.10.55.0/24 is directly connected, Loopback55
> > > O IA 146.10.66.0/24 [110/65] via 146.10.10.6, 00:16:28, Serial0.501
> > > 146.100.0.0/24 is subnetted, 1 subnets
> > > C 146.100.55.0 is directly connected, Loopback100
> > > O*E2 0.0.0.0/0 [110/1] via 146.10.10.2, 00:16:21, Serial0.501
> > > r5#
> > > _________________________________________________________________
> > > Commercial lab list: http://www.groupstudy.com/list/commercial.html
> > > Please discuss commercial lab solutions on this list.
> > _________________________________________________________________
> > Commercial lab list: http://www.groupstudy.com/list/commercial.html
> > Please discuss commercial lab solutions on this list.
>_________________________________________________________________
>Commercial lab list: http://www.groupstudy.com/list/commercial.html
>Please discuss commercial lab solutions on this list.
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