![]() ![]() There's a lot more to RID's and LSA operation than above but in a shell of a nut. I can sort of see the logic to this: you might want to give all your routers host addresses in the same. ![]() Executing traceroute -n dst on src will show the IP addresses of src, dst and all incoming interfaces of the hops in between. If you include a loopback interface in an OSPF process, it gets advertised as a stub host. Every node in between has an incoming and an outgoing interface. NTP) so that you could use a loopback as the source, regardless of the interface which the packets actually use. There are also some commands that will set the default source interface for various things (e.g. ![]() ping 10.0.0.1 source x ping 10.0.0. How to trace outgoing interfaces The Unix command traceroute traces the IP addresses of the nodes from a source node to a destination node. You can override that in a ping command, but it doesnt change which interface the packets use to exit the router. The OSPF router does the same.Ī router seeing it's own RID will reject the LSA thinking that there is a loop in the network, so the RID is used to get a picture of the network and to prevent loops occuring in the topology. How can I ping with source option in Cisco Router I have a ISR 4321 Router, I want to ping from a source IP address: Routerping WORD Ping destination address or hostname ip IP echo ipv6 IPv6 echo there I have two question, how can I add source options in Cisco Router I tried use the.it makes it easier to piece the jigsaw puzzle together again. The LSA's will contain the RID are then processed by other routers to get a picture of the network, this operation is like taking a jigsaw puzzle numbering all the pieces with each piece also having information about which other RID ID that particular interface peers with. The point of the RID needing to be unique in OSPF is so that when the Router creates and floods Link State Updates (LSU) which contain the Link State Advwertisments (LSA) they will all have the originating routers RID. Click to expand.Indeed it does, each OSPF process you enable on a router will select it's own unique Router ID (RID). ![]()
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