Christopher, >From your first config you put loop back 0 in OSPF area 9 which is equivalant to the "network 192.168.9.9 area 9" under the ospf process. You didnt see the E2 route from redistribtuion because the O or OIA will win over the E2 when being installed in the rib.
When you went from the interface config to the network statement you onely did network statements for the serial and fast ethernet not the loop back. As soon as you did "no ip ospf 1 area 9" on the loop back of router 9 and didnt put the "network 192.168.9.9 0.0.0.0 area 9 under the process", the O and OIA routes went away only leaving the E2 route. Aaron On Sun, Jun 26, 2011 at 4:17 PM, Christopher Lemish < [email protected]> wrote: > Guys, > > I found an issue when configuring OSPF via the interface as opposed to > using the network command. Can someone explain why this happened and how we > should know when to use the "interface OSPF config" vs. the "network cmd > OSPF config"? > Summary: When using the interface OSPF cmd, the OE2 route did not show up > on R5, it showed as an IA route. When I changed my advertisting of R9's > connected networks (netw 172.16.69.0 0.0.0.255 area 9), it showed up as an > OSPF OE2 route on R6 and R5. > > Here was the test: > > //Went through the task, configured my route map, redistributing Loopback 0 > into OSPF (At this point, I am using "ip ospf 1 area 9" on S0/2/0 & lo0) > R9(config-if)#do sh run | s ospf|inter > interface Loopback0 > ip address 192.168.9.9 255.255.255.255 > ip ospf 1 area 9 > interface FastEthernet0/0 > ip address 172.16.90.9 255.255.255.240 > ip ospf 1 area 9 > duplex auto > speed auto > interface FastEthernet0/1 > no ip address > shutdown > duplex auto > speed auto > interface Serial0/2/0 > ip address 172.16.69.2 255.255.255.252 > encapsulation ppp > ip ospf 1 area 9 > no fair-queue > ppp authentication chap > ppp chap password 7 030D4B0E1E1F245E5A > interface Serial0/2/1 > no ip address > shutdown > router ospf 1 > router-id 192.168.9.9 > log-adjacency-changes > redistribute connected subnets route-map RedistL0 > match interface Loopback0 > R9(config-if)#do sh ip ospf nei > Neighbor ID Pri State Dead Time Address Interface > 192.168.6.6 0 FULL/ - 00:00:36 > 172.16.69.1<36%20%20%20%20172.16.69.1> Serial0/2/0 > > > R5(config-router)#do sh ip ro os > 192.168.9.0/32 is subnetted, 1 subnets > O IA 192.168.9.9 [110/66] via 172.16.200.6, 00:00:03, FastEthernet0/0 > //shows up as an IA route > 172.16.0.0/16 is variably subnetted, 5 subnets, 5 masks > O IA 172.16.90.0/28 [110/66] via 172.16.200.6, 00:00:03, > FastEthernet0/0 > O IA 172.16.69.0/30 [110/65] via 172.16.200.6, 00:00:03, > FastEthernet0/0 > 192.168.6.0/32 is subnetted, 1 subnets > O IA 192.168.6.6 [110/2] via 172.16.200.6, 00:12:25, FastEthernet0/0 > 192.168.7.0/32 is subnetted, 1 subnets > O 192.168.7.7 [110/2] via 172.16.200.7, 00:12:45, FastEthernet0/0 > 192.168.2.0/32 is subnetted, 1 subnets > O IA 192.168.2.2 [110/65] via 172.16.0.2, 00:11:55, Serial0/1/0 > > > R6(config-router)#do sh ip ro os > 192.168.9.0/32 is subnetted, 1 subnets > O 192.168.9.9 [110/65] via 172.16.69.2, 00:02:06, Serial0/2/0 > //R6 shows it as an internal route > 172.16.0.0/16 is variably subnetted, 6 subnets, 6 masks > O 172.16.25.0/24 [110/65] via 172.16.200.5, 00:14:32, > FastEthernet0/0 > O 172.16.90.0/28 [110/65] via 172.16.69.2, 00:02:06, Serial0/2/0 > 192.168.5.0/32 is subnetted, 1 subnets > O IA 192.168.5.5 [110/2] via 172.16.200.5, 00:14:32, FastEthernet0/0 > 192.168.7.0/32 is subnetted, 1 subnets > O 192.168.7.7 [110/2] via 172.16.200.7, 00:14:32, FastEthernet0/0 > 192.168.2.0/32 is subnetted, 1 subnets > O IA 192.168.2.2 [110/65] via 172.16.0.2, 00:14:02, Serial0/1/0 > > //Changed my config as it is presented in the DSG > R9(config-if)#int lo0 > R9(config-if)#no ip ospf 1 area 9 > R9(config-if)#int s0/2/0 > R9(config-if)#no ip ospf 1 area 9 > R9(config-if)# > *Jun 26 07:52:18.991: %OSPF-5-ADJCHG: Process 1, Nbr 192.168.6.6 on > Serial0/2/0 from FULL to DOWN, Neighbor Down: Interface down or detached > R9(config-if)#router ospf 1 > R9(config-router)#netw 172.16.69.0 0.0.0.255 area 9 > *Jun 26 07:52:34.575: %OSPF-5-ADJCHG: Process 1, Nbr 192.168.6.6 on > Serial0/2/0 from LOADING to FULL, Loading Done > R9(config-router)#netw 172.16.90.0 0.0.0.255 area 9 > R9(config-router)#do sh ip ospf nei > //Showing my adjacency after the change > Neighbor ID Pri State Dead Time Address Interface > 192.168.6.6 0 FULL/ - 00:00:33 > 172.16.69.1<33%20%20%20%20172.16.69.1> Serial0/2/0 > > //Now R6 shows R9's Lo0 as an E2 route > R6(config-router)#do sh ip ro os > 192.168.9.0/32 is subnetted, 1 subnets > O E2 192.168.9.9 [110/20] via 172.16.69.2, 00:00:52, Serial0/2/0 > //Now R6 & R5 show the route to R9's loopback as OE2 & redistributed > 172.16.0.0/16 is variably subnetted, 6 subnets, 6 masks > O 172.16.25.0/24 [110/65] via 172.16.200.5, 00:16:08, > FastEthernet0/0 > O 172.16.90.0/28 [110/65] via 172.16.69.2, 00:03:42, Serial0/2/0 > 192.168.5.0/32 is subnetted, 1 subnets > O IA 192.168.5.5 [110/2] via 172.16.200.5, 00:16:08, FastEthernet0/0 > 192.168.7.0/32 is subnetted, 1 subnets > O 192.168.7.7 [110/2] via 172.16.200.7, 00:16:08, FastEthernet0/0 > 192.168.2.0/32 is subnetted, 1 subnets > O IA 192.168.2.2 [110/65] via 172.16.0.2, 00:15:38, Serial0/1/0 > //Therefore, R5 shows it as an E2 route as well > > R5(config-router)#do sh ip ro os > 192.168.9.0/32 is subnetted, 1 subnets > O E2 192.168.9.9 [110/20] via 172.16.200.6, 00:01:35, FastEthernet0/0 > //Now R6 & R5 show the route to R9's loopback as OE2 & redistributed > 172.16.0.0/16 is variably subnetted, 5 subnets, 5 masks > O IA 172.16.90.0/28 [110/66] via 172.16.200.6, 00:04:24, > FastEthernet0/0 > O IA 172.16.69.0/30 [110/65] via 172.16.200.6, 00:04:24, > FastEthernet0/0 > 192.168.6.0/32 is subnetted, 1 subnets > O IA 192.168.6.6 [110/2] via 172.16.200.6, 00:16:46, FastEthernet0/0 > 192.168.7.0/32 is subnetted, 1 subnets > O 192.168.7.7 [110/2] via 172.16.200.7, 00:17:06, FastEthernet0/0 > 192.168.2.0/32 is subnetted, 1 subnets > O IA 192.168.2.2 [110/65] via 172.16.0.2, 00:16:16, Serial0/1/0 > > > Thank you, > Chris > > [ > https://webmail.blackbox.com/owa/attachment.ashx?id=RgAAAABX%2bzrAOIhhTKsGfsmsKM%2fWBwB2C4ufLoSBRKYuefQ4bb5VA1mZRBowAADfnGilB%2fyFQqNTYxhm11nnACriB%2beYAAAJ&attcnt=1&attid0=EADDdQVcpz%2fuS4ZJKn0f1Fuw > ]< > http://www.facebook.com/home.php#!/pages/Black-Box-Network-Services-Long-Island-Voice/117226961676137> > [ > https://webmail.blackbox.com/owa/attachment.ashx?id=RgAAAABX%2bzrAOIhhTKsGfsmsKM%2fWBwB2C4ufLoSBRKYuefQ4bb5VA1mZRBowAADfnGilB%2fyFQqNTYxhm11nnACriB%2beYAAAJ&attcnt=1&attid0=EAD9HumqwrBlQJ9uJ5SBtEr3] > <http://linkd.in/gxJOgY> [ > https://webmail.blackbox.com/owa/attachment.ashx?id=RgAAAABX%2bzrAOIhhTKsGfsmsKM%2fWBwB2C4ufLoSBRKYuefQ4bb5VA1mZRBowAADfnGilB%2fyFQqNTYxhm11nnACriB%2beYAAAJ&attcnt=1&attid0=EADvORIBrgGcT5wWn7hGQlLs] > <http://twitter.com/bbnslivoice> [ > https://webmail.blackbox.com/owa/attachment.ashx?id=RgAAAABX%2bzrAOIhhTKsGfsmsKM%2fWBwB2C4ufLoSBRKYuefQ4bb5VA1mZRBowAADfnGilB%2fyFQqNTYxhm11nnACriB%2beYAAAJ&attcnt=1&attid0=EAAXlrLorBo2SZm9%2fk1QYSJt] > <http://blackboxnetw > orkslivoice.wordpress.com/> > ______________________________ > Christopher Lemish, CCNP/ MCSE > Network Engineer > Blackbox Network Services > Long Island Voice > 6000 New Horizons Boulevard > Amityville, NY 11701 > Mobile: 516-790-1525 > Email: [email protected]<mailto: > [email protected]> > HTTP: www.blackbox.com<http://www.blackbox.com/> > > ________________________________ > This email and any files transmitted with it are confidential and are > intended for the sole use of the individual to whom they are addressed. > Black Box Corporation reserves the right to scan all e-mail traffic for > restricted content and to monitor all e-mail in general. 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