dear experts, hello
i'd like to know the defference between the LSA type 4 and LSA type 5 in the ospf LSA types because i read it in BSCI ebook (cisco press)
but unfortunatily didn't understand it, thanks alot for your response and help
LSA Type 4 :
# LSA Type 4 is the ASBR Summary LSA. This LSA informs other OSPF speaking routers about the existence of an ASBR. It's needed for reachability to external routes.
# LSAType 4 Sent by ASBR, but only internally. This describes to the others how to get to the ASBR itself
LSA Type 5:
# LSA Type 5 is the External LSA. This LSA informs other OSPF speaking routers about externet routes(outside from the OSPF domain)
# Used to describe external routes to internal areas.