Refer to the exhibit. The OSPF routing protocol is redistributed into the BGP routing protocol, but not all the OSPF routes are distributed into BGP.
Which action resolves the issue?
Refer to the exhibit. The OSPF routing protocol is redistributed into the BGP routing protocol, but not all the OSPF routes are distributed into BGP.
Which action resolves the issue?
The correct solution is to include the word 'internal external' in the redistribute command. This is necessary because when redistributing OSPF into BGP without specifying any keywords, only OSPF intra-area and inter-area routes are included by default. To ensure that all OSPF routes, including both internal and external types, are redistributed into BGP, the command needs to specify both internal and external routes explicitly.
The material from cisco states first that: "If you configure the redistribution of OSPF into BGP without keywords, only OSPF intra-area and inter-area routes are redistributed into BGP, by default." But then it says in order to distribute ONLY External Type 1 and Type 2 routes, you use the "external" keyword. So reasoning on that, I am going with C. Include the word internal external in the redistribute command https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/5242-bgp-ospf-redis.html
Shame you didn't lab it and find out the answer instead of being a bookworm. I'm ashamed to say it, but this is the quality of the future cisco network engineers. So many said the answer is C and you're all wrong and I've been a CCNP for years. Every question if possible I try and lab and confirm the answer. This si why we're going down the automation route because of LAZY network engineers. we have free emulators from GNS3, eve-ng and lots of paid ones and we have people on here guessing and not bettering themselves by labbing.
Actually just labed and the answer is C :)
i labbed this and C worked for me
U are so wrong, i labbed it and the answer is C, if u want i can demostrate to u
C is correct Redistribution of OSPF Internal and External Routes into BGP: In this case, all OSPF routes are redistributed into BGP by using BOTH the internal and external keywords. Reference: https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/5242-bgp-ospf-redis.html
C, you need internal and external. if you only specify external, it will only advertise external routes and you'll loose the internal ones
C is correct
C is correct
By default, when redistributing the OSPF routes into BGP, only internal routes will be included. If you would like to redistribute the external route too, redistribute with the command " redistribute ospf <process_id> match internal external". BTW: OSPF Process ID is available <1-65535>.
All this confusion... just type in: #router bgp 65500 #redistribute ospf 1 external now view the output of "show ip protocols" and see ONLY external routes are redistributed the answer is C
A will only redistribute external C will redistribute internal & external
When redistributing OSPF routes into BGP, including the word "external" in the redistribute command typically resolves the issue when not all OSPF routes are being distributed into BGP. This is because the "external" keyword instructs BGP to redistribute OSPF external routes (routes from other autonomous systems) into BGP. If you omit "external," only OSPF internal routes (intra-area and inter-area routes) are redistributed by default. Option B and Option D suggest using a route-map to control the redistribution of OSPF external routes based on specific criteria defined in an access list or prefix list. While these are valid methods to control redistribution, they do not directly address the issue of missing OSPF routes in BGP. Option C, "include the word internal external in the redistribute command," is not a standard syntax for redistribution and is not typically used in OSPF-to-BGP redistribution. So, including the "external" keyword in the redistribute command is the most straightforward way to ensure that OSPF external routes are redistributed into BGP.
C it is, quick lab test: redistribute OSPF internal & external routes to BGP under default VRF example: router bgp 65006 address-family ipv4 redistribute ospf match internal external ..... that will be saved/converted to the router configuration as "redistribute ospf 1 match internal external 1 external 2"
lab it
If the command redistribute ospf is there and the administrator includes external the new line include internal and external 1 external 2, if the command doesn't exists when you apply the command only appears external 1 external 2 if the command already exists the new line only needs the external route for distribution. I probe it on GNS3
Even I labbed it. The result is C. There are some experienced CCNPs in this forum who say vehemently that it is A. They seem to have labbed it too. Just a small question: can the result be platform- and IOS dependent? I used C7200-ADVENTERPRISEK9-M under GNS3.
c https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/5242-bgp-ospf-redis.html
Both A and C are correct. Either with "external" only or with "internal external", both would be expanded to " redistribute ospf 1 match internal external 1 external 2". This is a bad question unless both A and C would be considered right
The question says that all routes need to be redistributed, so C is the answer since A would only redistribute external routes and left out the internal ones.
May bad. I labbed it, you only need to add external. A is also correct.
Only A is correct Redistributing routes from OSPF to BGP does not include OSPF external routes by default match external [1 | 2] is required to redistribute OSPF external routes.
I just lab it and the thing is, If you run the command for the first time with the matching external key word only, it only redistribute the external routes. But if you use the redistribute ospf # with no keyword it will only pass the internal routes, and after doing this you use the command again with the match external key word only, you them will get the external also and it wont remove the internal ones. So if you want to run the command for the first time you need to use both, internal and external.
C is correct