OSPF over PPPoFR

November 1, 2008 @ 8:09 pm · Filed under CCIE Study

Toloupe,
1st I have to say that I couldn’t find this task in IE Vol2 work book. (Lab 5 , task 4.4 is related to BGP). I have some similar problems before. Seems you don’t have access to routes to Virtual-Access2. Can you ping 192.168.1.1 from R5? Do you have basic reachability? Try to create Virtual-template 2, and attach it to DLCI 502. With IP unnumbered virtual-template 1.
Reza
—–Original Message—– From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Tolulope Ogunsina Sent: Sunday, November 02, 2008 1:51 AM To: Cisco certification Subject: OSPF over PPPoFR
Hi All I couldnt solve IE Core lab 5 task 4.4 so i decided to run the PPPoFR alone in a separate test lab.
I still have the same results. Scenario: R5 is the hub of the FR circuit with connections on dlci’s 501 and 502 to R1 and R2 respectively. they all run OSPF on the common 192.168.1.0 subnet. R1 has loopback 0 (1.1.1.1) in area 0 and R2 has loopback 0 (2.2.2.2) in area 125
Problem. R5 installs the same virtual-access as the exit interface for the ospf routes learned regardless of the advertising router.
Configuration and show output below.
R1#sh run int s0/0.1 Building configuration…
Current configuration : 131 bytes ! interface Serial0/0.1 multipoint ip ospf network point-to-multipoint frame-relay interface-dlci 105 ppp Virtual-Template1 end
R1#sh run int virtual-te 1 Building configuration…
Current configuration : 111 bytes ! interface Virtual-Template1 ip address 192.168.1.1 255.255.255.0 ip ospf network point-to-multipoint end R1#sh run | sec router os router ospf 1 log-adjacency-changes network 192.168.1.1 0.0.0.0 area 125
R1#sh run int lo0 Building configuration…
Current configuration : 111 bytes ! interface Loopback0 ip address 1.1.1.1 255.255.255.0 ip ospf network point-to-point ip ospf 1 area 0 end
R2#sh run int s0/0.1 Building configuration…
Current configuration : 131 bytes ! interface Serial0/0.1 multipoint ip ospf network point-to-multipoint frame-relay interface-dlci 205 ppp Virtual-Template1 end
R2#sh run int virtual-te1 Building configuration…
Current configuration : 111 bytes ! interface Virtual-Template1 ip address 192.168.1.2 255.255.255.0 ip ospf network point-to-multipoint end R2#sh run | sec router os router ospf 1 log-adjacency-changes network 192.168.1.2 0.0.0.0 area 125 R2#sh run int lo0 Building configuration…
Current configuration : 113 bytes ! interface Loopback0 ip address 2.2.2.2 255.255.255.0 ip ospf network point-to-point ip ospf 1 area 125 end
R5 the HUB R5#sh run int s0/0.1 Current configuration : 185 bytes ! interface Serial0/0.1 multipoint ip ospf network point-to-multipoint frame-relay interface-dlci 501 ppp Virtual-Template1 frame-relay interface-dlci 502 ppp Virtual-Template1 end R5#sh run int virtual-te1 Building configuration…
Current configuration : 111 bytes ! interface Virtual-Template1 ip address 192.168.1.5 255.255.255.0 ip ospf network point-to-multipoint end R5#sh int virtual-acc 1 -output cut short– Virtual-Access1 is up, line protocol is up Bound to Serial0/0.1 DLCI 501, Cloned from Virtual-Template1, loopback not set R5#sh int virtual-acc 2 Virtual-Access2 is up, line protocol is up Bound to Serial0/0.1 DLCI 502, Cloned from Virtual-Template1, loopback not set R5#sh run | sec router os router ospf 1 log-adjacency-changes network 192.168.1.5 0.0.0.0 area 125 R5#sh ip rou Codes: C - connected, S - static, 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 i - IS-IS, su - IS-IS summary, 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 not set
1.0.0.0/24 is subnetted, 1 subnets O IA 1.1.1.0 [110/2] via 192.168.1.1, 00:33:43, Virtual-Access2 2.0.0.0/24 is subnetted, 1 subnets O 2.2.2.0 [110/2] via 192.168.1.2, 00:33:43, Virtual-Access2 192.168.1.0/24 is variably subnetted, 3 subnets, 2 masks C 192.168.1.1/32 is directly connected, Virtual-Access1 C 192.168.1.0/24 is directly connected, Virtual-Access2 is directly connected, Virtual-Access1 C 192.168.1.2/32 is directly connected, Virtual-Access2 R5#ping 2.2.2.2
Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 8/34/68 ms R5#ping 1.1.1.1
Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds: …… Success rate is 0 percent (0/5)
IMO, R5 cant reach R1’s loopback because it is using Virtual-Access2 (which is cloned to R2’s loopback)
All opinions are HIGHLY welcome.
Thanks..