I have three routers. Router A=> <=Router B=> <=Router C>. A default route exists on Router A to my provider. All routers are setup with OSPF and all internal routes function as normal. Router A has Redistribute Default Route always as type 1. Router B has Redistribute Default Route never. Router C has Redistribute Default Route always as never. Router A and B have the default route but Router C does not. If I enable Redistribute Default Route always as type 1 on Router B then the Default gateway disappears from Router B and Router C receive a Default route of the IP address of Router B. I had to manually put a default route on Router B to Router A to get Router B and Router C access to the internet through Router A. The same behavior exists on Router C if you enable Redistribute Default Route always as type 1 then it looses its default route. What am I missing here on this behavior?
Please post the outputs of ‘/routing ospf export’ and ensure you are on the latest version of either stable or long-term. Don’t forget to update firmware after upgrading (/sys rou pr).
Just noticed the same thing, deployed OSPF for a customer Wednesday this week, the default route was being distributed at the time, checking this morning, it was not being distributed.
Running 6.45.8 long term
Changing distribute-default=always-as-type-1 to “never” and back to “always-as-type-1” corrected this, so looks like after some time it causes OSPF to not distribute default route.
Will monitor for a couple of days and report back here / MT Support