Access lists after 11p.m.

Today I was configuring a summary route between two routers and I had a strange problem:

On R5 i wanted to configure a summary route for addresses,, etc and send this route over to R8.

int eth0/0.58

ip summary-address rip

That should do it right?

So I did, and to my astonishment R8 got the summary PLUS all the /32 routes.

After 15 minutes of troubleshooting and cursing at GNS3 I realized what was happening. It was well after 11p.m. and I couldn’t see the fact that instead of creating a summary route, I created one for

When you’re tired, doublecheck all the numbers. Tiredness is very much like being drunk. Being tired can cause serious network outages.


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