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Found 34 results

  1. INE - Service Provider Core Configuration Service Provider Core Configuration by Travis Bonfigli In this course, the learner will be exposed to the configuration tasks required in the Service Provider (SP) core network. This course also includes a mini-IS-IS boot camp and the semantics of both IS-IS and OSPF are covered. [hide][Hidden Content]] [hide][Hidden Content]] [hide][Hidden Content]] [hide][Hidden Content]] [hide][Hidden Content]] [hide][Hidden Content]] [hide][Hidden Content]] [hide][Hidden Content]] [hide][Hidden Content]] [hide][Hidden Content]] [hide][Hidden Content]]
  2. OSPF Basic Course - Day 2, The download link: [Hidden Content] My english not good, but want to share my knowledge and experience, hope you all like it. Expect Improve english every day!!! Next Week, will continue, if have problem, you can discuss here!!!! Thx!!!
  3. Hello guys!! In section 3.1 of new config lab the DMVPN is up but ospf neighborship is not getting up in fact it's not receiving hello packets from its neighbor. Below is the configuration of hub and spoke. Any idea what the problem is?? R17 : DMVPN HUB interface Tunnel0 ip address 10.100.0.1 255.255.255.0 no ip redirects ip pim sparse-mode ip nhrp authentication 65002key ip nhrp map multicast dynamic ip nhrp network-id 65002 ip nhrp holdtime 300 ip nhrp redirect ip ospf network point-to-multipoint ip ospf priority 255 tunnel source Ethernet0/0 tunnel mode gre multipoint tunnel protection ipsec profile cisco end router ospf 65002 router-id 10.255.1.17 area 51 stub no-summary network 10.2.0.38 0.0.0.0 area 0 network 10.100.0.1 0.0.0.0 area 51 network 10.255.1.17 0.0.0.0 area 0 default-information originate always ################################## R19: Spoke R19(config-if)#do sh dm Legend: Attrb --> S - Static, D - Dynamic, I - Incomplete N - NATed, L - Local, X - No Socket # Ent --> Number of NHRP entries with same NBMA peer NHS Status: E --> Expecting Replies, R --> Responding, W --> Waiting UpDn Time --> Up or Down Time for a Tunnel ========================================================================== Interface: Tunnel0, IPv4 NHRP Details Type:Spoke, NHRP Peers:1, # Ent Peer NBMA Addr Peer Tunnel Add State UpDn Tm Attrb ----- --------------- --------------- ----- -------- ----- 1 192.0.2.2 10.100.0.1 UP 00:25:49 S interface Tunnel0 ip address 10.100.0.19 255.255.255.0 no ip redirects ip mtu 1400 ip pim sparse-mode ip nhrp authentication 65002key ip nhrp map multicast 192.0.2.2 ip nhrp map 10.100.0.1 192.0.2.2 ip nhrp network-id 65002 ip nhrp nhs 10.100.0.1 ip nhrp shortcut ip ospf network point-to-multipoint tunnel source Dialer0 tunnel mode gre multipoint tunnel protection ipsec profile cisco end router ospf 65002 router-id 10.255.1.19 network 10.16.1.1 0.0.0.0 area 51 network 10.100.0.19 0.0.0.0 area 51 network 10.255.1.19 0.0.0.0 area 51 No neighbors at all in any ospf state!!!! R19(config-if)# R19(config-if)#do sh ip ospf nei R19(config-if)#
  4. Hi All Please check below configuration which I made. I just want to know if I can do this way as well. Output is correct. ==================================================================================================================== R1#sh run | sec ospf router ospf 12345 router-id 123.1.1.1 network 0.0.0.0 255.255.255.255 area 0 R1# R2#sh run | sec ospf router ospf 12345 router-id 123.2.2.2 passive-interface Ethernet0/0 passive-interface Ethernet0/3 network 0.0.0.0 255.255.255.255 area 0 R2# R3#sh run | sec ospf router ospf 12345 router-id 123.3.3.3 passive-interface Ethernet0/0 passive-interface Ethernet0/3 network 0.0.0.0 255.255.255.255 area 0 R3# R4#sh run | sec ospf router ospf 12345 router-id 123.4.4.4 network 0.0.0.0 255.255.255.255 area 0 R4# R5#sh run | sec ospf router ospf 12345 router-id 123.5.5.5 network 0.0.0.0 255.255.255.255 area 0 R5# R6#sh run | sec ospf router ospf 12345 router-id 123.6.6.6 passive-interface Ethernet0/0 network 0.0.0.0 255.255.255.255 area 0 R6# R7#sh run | sec ospf router ospf 12345 router-id 123.7.7.7 passive-interface Ethernet0/0 network 0.0.0.0 255.255.255.255 area 0 R7# ==================================================================================================================== R1#sh ip route ospf Codes: L - local, 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, H - NHRP, l - LISP a - application route + - replicated route, % - next hop override Gateway of last resort is not set 123.0.0.0/8 is variably subnetted, 17 subnets, 2 masks O 123.2.2.2/32 [110/21] via 123.10.1.1, 00:00:02, Ethernet0/1 O 123.3.3.3/32 [110/21] via 123.10.1.6, 00:00:02, Ethernet0/2 O 123.4.4.4/32 [110/11] via 123.10.1.1, 00:00:02, Ethernet0/1 O 123.5.5.5/32 [110/11] via 123.10.1.6, 00:00:02, Ethernet0/2 O 123.6.6.6/32 [110/21] via 123.10.1.1, 00:00:02, Ethernet0/1 O 123.7.7.7/32 [110/21] via 123.10.1.6, 00:00:02, Ethernet0/2 O 123.10.1.8/30 [110/30] via 123.10.1.6, 00:00:02, Ethernet0/2 [110/30] via 123.10.1.1, 00:00:02, Ethernet0/1 O 123.10.1.12/30 [110/20] via 123.10.1.6, 00:00:02, Ethernet0/2 O 123.10.1.16/30 [110/20] via 123.10.1.1, 00:00:02, Ethernet0/1 O 123.10.1.20/30 [110/20] via 123.10.1.1, 00:00:02, Ethernet0/1 O 123.10.1.24/30 [110/30] via 123.10.1.6, 00:00:02, Ethernet0/2 [110/30] via 123.10.1.1, 00:00:02, Ethernet0/1 O 123.10.1.28/30 [110/20] via 123.10.1.6, 00:00:02, Ethernet0/2 R1#
  5. Ok Gents...... Section 2 - Layer 3 technologies 2.1 – Implement IPv4 OSPF OSPF updates should be advertised only out of the interfaces that are indicated in the topology diagram. Use your rack number as the OSPF process id. Do not manipulate or change the router id. Do not create additional OSPF areas. Configure OSPF Area 2 such that there are no type 5 link-state advertisements (LSAs) in the area. R1 should generate a default route. Configure OSPF over frame relay between R1 and R2 choosing a network type that requires designated router (dr) and backup designated router (bdr) negotiations and the fastest recover times. Ok, so 2 - 4 is obvious, don't make changes. Now 1 is tricky. Need some feedback on this. I configure OSPF under the repsected interfaces, not under the routing process. If anyone disagree, please explain why. Because configuring under the interface ONLY provides advertisements out those interfaces, no others, therefore making all other ports passive. I have a feeling I lost points on this. 5: R1: router ospf 101 area 2 nssa default-information originate R2: area 2 nssa for 6: R1/R2: int s0/0.12 ip ospf network broadcast **But I failed to read the last part requesting the fastest recover times.** I would have done: R1/R2: int s0/0.12 ip ospf dead-interval min hello-multiplier 20 Just goes to show you: 'You must pay attention' DL
  6. Hello Colleagues, All of us who tried to pass the 4.1/4.2 labs had the section related to redistribution from the EIGRP to OSPF. The tasks looks like (very close to the real tasks): Configure EIGRP 100 - Configure EIGRP 100 on SW2. Disable auto-summary. - Redistribute EIGRP 100 into OSPF. The EIGRP routes should be not present in OSPF Area 51 but present in Area 142. - SW2 should generate to the Area 51 an INTRA/INTER area default route. (I had INTRA AREA in my task) I marked the INTRA/INTER area in capital letters purposly - if the task requests that it should be INTER AREA default route the result can be achieved by implementing config like router ospf 11 router-id 11.11.8.8 log-adjacency-changes AREA 51 NSSA NO-REDISTRIBUTION NO-SUMMARY redistribute connected subnets route-map CONN_BB2_2_OSPF redistribute eigrp 100 metric 222 subnets tag 100 network 11.11.8.8 0.0.0.0 area 0 network 11.11.58.8 0.0.0.0 area 51 network 11.11.123.8 0.0.0.0 area 0 In this case we can see default-route as OSPF INTER AREA on R3 or R5 Rack11R3(config)#do sh ip route 0.0.0.0 Routing entry for 0.0.0.0/0, supernet Known via "ospf 11", distance 110, metric 75, candidate default path, type INTER AREA Last update from 11.11.35.5 on Serial1/0, 00:06:27 ago Routing Descriptor Blocks: * 11.11.35.5, from 11.11.8.8, 00:06:27 ago, via Serial1/0 Route metric is 75, traffic share count is 1 But, how it is possible to get this default as INTRA AREA route ? All available sources told me that this task has now solution. If anybody of you has the different oppininion and solution could you be so kind to share it. Thank you ! Best Regards, Ricko.
  7. Dear all, I don't know how to pass default route from OSPF to EIGRP - ip default-network 150.150.0.0 does not work (even if I enter ip route 150.150.0.0 255.255.0.0 null 0). Topology: [router] ISP passes default route to R1 via BGP (OK). R1 passes default route to R2 via OSPF (OK). I need to pass default route from R2 to R3 via EIGRP Internet -- [iSP] -- (BGP) -- [R1] -- (OSPF) -- [R2] -- (EIGRP) -- [R3] Can someone advise, please? Thank you! Routing table R2: Gateway of last resort is 150.150.150.9 to network 0.0.0.0 O*E2 0.0.0.0/0 [110/1] via 150.150.150.9, 02:59:35, Serial1/0 100.0.0.0/8 is variably subnetted, 12 subnets, 5 masks O 100.100.0.0/24 is a summary, 02:59:35, Null0 C 100.100.0.0/25 is directly connected, Loopback1 L 100.100.0.1/32 is directly connected, Loopback1 C 100.100.0.128/25 is directly connected, Loopback4 L 100.100.0.129/32 is directly connected, Loopback4 O 100.100.1.0/25 is a summary, 02:59:35, Null0 C 100.100.1.0/26 is directly connected, Loopback5 L 100.100.1.1/32 is directly connected, Loopback5 C 100.100.1.64/26 is directly connected, Loopback3 L 100.100.1.65/32 is directly connected, Loopback3 C 100.100.1.128/27 is directly connected, Loopback2 L 100.100.1.129/32 is directly connected, Loopback2 150.150.0.0/16 is variably subnetted, 4 subnets, 2 masks C 150.150.150.8/30 is directly connected, Serial1/0 L 150.150.150.10/32 is directly connected, Serial1/0 C 150.150.150.12/30 is directly connected, Serial1/1 L 150.150.150.13/32 is directly connected, Serial1/1 D 200.200.0.0/24 [90/2297856] via 150.150.150.14, 00:42:20, Serial1/1 200.200.1.0/28 is subnetted, 1 subnets D EX 200.200.1.0 [170/2297856] via 150.150.150.14, 00:42:20, Serial1/1
  8. Guys, I have seen most of the guys are using "redistributed connected" for the BB1 and BB2 link into OSPF but the question suggested "Note: SW1, SW2, R1, R5 Loopback0 in Area 0. R2 , R3 Loopback 0 in Area 1, R4 Loopback in area2. Backbone 1 and 2 facing interface of R1 and R2 should also be advertised in OSPF. BB1 interface in Area 0 and BB2 interface in ARe1 (Not Redistribute connected) Does any one have an idea how to do this? I have tried this on R3 and R4 but failing to get the route as E2: router ospf 1 distribute-list route-map BB_LINKS in ! ip prefix-list 150_NET seq 5 permit 150.1.5.0/24 ip prefix-list 150_NET seq 10 permit 150.2.5.0/24 ! ! ! ! route-map BB_LINKS permit 10 match ip address prefix-list 150_NET set metric-type type-2 ! route-map BB_LINKS permit 20
  9. 1) question is ping 192.168.20.1 from R20 with source is 200.20.20.20 200.20.20.20 is redistributed to area 0 and area 1 is nssa . am not able to see any routes to 200.20.20.20 in nssa also am not able see to see any default route in nssa
  10. On ABC site 2, we have R11 and R3 via eBGP and R12 and R5 via OSPF. Between R11 and R12 we also have OSPF. Everything works well for all Intra-AS and Inter-AS VPN questions. Problem occurs in question CsC-1. In my setup, the preferred path on ABC site 2 is via the link between R11 and R3. CsS-1 requires vpnv4 between R12 and R13. The vpvn4 session will be closed after a while and the Ping's between VPN XYZ sites are not successful at all. I checked the forwarding plane and have detected that R12's routing table prefers the path over R11 and than from R11 to R3. As soon as I do a shutdown on R12 interface towards R11, vpnv4 session toward R13 comes up and the Pings between the XYZ sites works. I'm looking for a solution to manipulate R12's routing decision. As long as the path between R12 and R5 is used, everything works. One alternative would be to consider CsC-CE redundancy --> vpnv4 + ldp between R12 and R11. This works because I tested this already. Another alternative would be to change the AD of eBGP on R11 but it seem AD change is not a good choice. Question: Do you have also the preferred path issue on R12 (preferred via R11 and not directly via R5?) and how have you solved the issue.
  11. is it preferable to summarize the EIGRP and OSPF network statements in one step router eigrp 34567 network 123.0.0.0 and router ospf 12345 mpls ldp autoconfig area 0 network 123.0.0.0 0.255.255.255 area 0 OR do you think cisco wants the individual specific network statements to match the host route on the interface
  12. The K7 mutual Redistribution between OSPF and EIGRP solution provided here can be simplified and there is no need for an extra config. FORUM SOLUTION: R2 / R3 route-map TAG permit 10 match source-protocol eigrp YY match route-type external set tag 100 route-map TAG permit 20 route-map DENY_TAG deny 10 match tag 100 route-map DENY_TAG permit 20 router eigrp YY redistribute ospf yy metric 100000 100 255 1 1500 router ospf YY redistribute eigrp YY subnets route-map TAG distribute-list route-map DENY_TAG in SIMPLIFIED SOLUTION which meets the requirements : R2 / R3 route-map DENY_TAG deny 10 match tag 100 route-map DENY_TAG permit 20 router eigrp YY redistribute ospf yy metric 100000 100 255 1 1500 router ospf YY redistribute eigrp yy subnets tag 100 distribute-list route-map DENY_TAG in
  13. Dear friends just want to shear with you this nice topic about different types LSA filtering in OSPF enjoy reading [Hidden Content]
  14. I am seeing proper OSPF neighborship among all the six routers. But router 5 Loop 0 is not reachable from R7 and R2. I looked at possibilities like 'ip ospf network ptop' , hello interval etc. OSPF neighboring is happening perfectly with neighbor router. After hour the issue with pinging R4. Does any one faced similar issue? Is there any workaround? Damcel
  15. OSPF Mindmaps for your studies. Cram and Memorize the concepts for your exams [Hidden Content]
  16. yorana

    Back Again

    Hi Members, Hoping all are fine. I am back again to prepare for my CCIE RS exam. Last time (2013) I tried but couldn't succeed that time. Anyway, bad luck happens. Here I am again to try my luck. Obviously as before, I believe this group is one of the key to success in this exam. Everyone in this group is so much supportive and helping that I can't have words to express. Well, see ya all members... (and wish me luck this time ) Regards,
  17. Here URL to download INE INTERMEDIATE OSPF COURSE [hide] [Hidden Content] [Hidden Content] [Hidden Content] [Hidden Content] [Hidden Content] [Hidden Content] [Hidden Content]]
  18. Dear All i have Re-upload the CCNA-CCNP Guide to OSPF for INE enjoy INE - The CCNA Candidates Guide to OSPF [Hidden Content] INE - The CCNP Candidates Guide to OSPF [Hidden Content]
  19. Hi All, I have a offer for you guys I have these two courses and I would like to share both the links with you that is Mega link. However I have a request can someone from you please re upload these courses on mega video by video as these courses are in rar file 4 and 5 GB rar file and I am not a prime mega user and i am not able to download more than 2 gb. Can someone from you download it and than re upload it by putting these videos in a folder so that i can download it in two three days. Please help me I will wait for your replies and than share both the links.
  20. 1)If the LSA is new, the route is added to the database, the route is flooded out other links so other routers are updated, and SPF is rerun. 2)If the sequence number is the same as the current entry in the topology table, the router ignores the advertisement. 3) If the sequence number is older, the router sends the newer copy (from memory) back to the advertiser to make sure that all neighbors have the latest LSA. When and under which circumstance Router can send LSA with older sequence number or with the same sequence number? Looking forward for comprehensive and detailed reply Thank you in advance.
  21. Question based on guru2010's post Assume that there is a server located in OSPF Area 1 on the link between R21 and R22 in the Global Service Provider Network. The NOC team has identified that the traffic that originates in OSPF Area 0 and destined to this server is not load balanced by R1. Fix the so that R1 traffic be can load balanced as shown in output: R1#traceroute 134.56.78.49 Type escape sequence to abort. Tracing the route to 134.56.78.49 VRF info: (vrf in name/id, vrf out name/id) 1 123.45.67.6 [MPLS: Label 26 Exp 0] 1 msec 123.45.67.18 [MPLS: Label 20 Exp 0] 0 msec 123.45.67.6 [MPLS: Label 26 Exp 0] 0 msec 123.45.67.42 1 msec 123.45.67.38 0 msec * Faults 1. IP OSPF COST R22 - Solve by changing the cost 2. Inbound Access List in R3 - Adding DSCP 6 for routing 3. Cannot Traceroute 134.56.78.49 - Not yet solved Please comment below
  22. Hi Guys, IN OSPF section, after configuring max-lsa command as per Doc the route output will change with same gateway but other side interface, can someone explain how to acheive this? R1 should act like stub router in ospf, it is not order you config R1 in stub area , just make sure R1 won't be a transit router of the traffics R1 is not souce or destination. R1# sh ip route OSPF 123.0.0.0/8 is variably subnetted, 17 subnets, 2 masks O 123.2.2.2/32 [110/21] via 123.10.1.1 4d20h ethernet e0/2 After the max-metric router lsa command exit interface should change as below with same gateway O 123.2.2.2/32 [110/65546] via 123.10.1.1 4d20h ethernet 0/1 Thanks in advance
  23. Hi Friends, I am working with the topology (attached) of 4 routers with 3 OSPF Areas. I have the same IP Subnet (172.16.0.0/24) on both the areas (Area 1 and Area 2).Also have a different loopback IP configured on each side. I could see the loopback routes are advertised from Area 1 to Area 2 and vice versa. But I am not able to ping R4's loopback IP from R1 and vice versa. Am I missing any OSPF fundamental ? Could someone help me to get it work, PLEASE? R1#show ip route | be Gateway Gateway of last resort is not set 172.16.0.0/24 is subnetted, 1 subnets C 172.16.0.0 is directly connected, FastEthernet0/0 192.168.4.0/32 is subnetted, 1 subnets O IA 192.168.4.4 [110/31] via 172.16.0.2, 01:57:23, FastEthernet0/0 10.0.0.0/24 is subnetted, 1 subnets O IA 10.2.3.0 [110/20] via 172.16.0.2, 01:57:41, FastEthernet0/0 C 192.168.1.0/24 is directly connected, Loopback0 R1#ping 192.168.4.4 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.4.4, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) R1# R4#show ip route | be Gateway Gateway of last resort is not set 172.16.0.0/24 is subnetted, 1 subnets C 172.16.0.0 is directly connected, FastEthernet0/0 C 192.168.4.0/24 is directly connected, Loopback0 10.0.0.0/24 is subnetted, 1 subnets O IA 10.2.3.0 [110/20] via 172.16.0.3, 00:32:38, FastEthernet0/0 192.168.1.0/32 is subnetted, 1 subnets O IA 192.168.1.1 [110/31] via 172.16.0.3, 00:32:38, FastEthernet0/0 R4#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) R4# Thanks in advance. Cheers Siva
  24. "OSPF Anatomy of an Internet Routing Protocol" gives an introduction to the Internet and its routing protocols covering unicast and multicast routing protocols and techniques for monitoring and debugging routing in a TCP/IP network. This book provides a detailed description of OSPF (Open Shortest Path First), which was developed by the author, and explains why OSPF was developed and how it greatly improves network efficiency. Each chapter contains exercises to help you get a better understanding of how to efficiently implement algorithms used in OSPF. This book is authored by John.T.Moy who is the inventor of OSPF [hide][Hidden Content]]
  25. Currently i am working on K6, and when i configured the ospf, i m getting neighbor down messages in random order on random devices...I have configured my switches to be all connected, so i am getting the conventional "%AMDP2_FE-6-EXCESSCOLL: Ethernet4/2 TDR=0, TRC=0" message. Does it have any thing to do with OSPF neighborship, lets say from SW1 to R1 ? I tried to check if STP is doing anything, but could not find anything relavant. Please hep me go through it quickly. Thanks. M
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