It is not related to the Ethernet issue. It is only the route summarization issue.
In normal case, if your ISP advertise /22 to the Internet, no matter what mask you are using, they will still advertise /22 to the Internet. You can check w/ your ISP for their policy.
Therefore, you can use continue to use /24 mask and advertise it to the ISP then let the ISP to summarize it for you and advertise to the Internet. Or you can summarize the routes to /22 at your router then advertise /22 route to the ISP.
It is better to work w/ ISP to determine the suitable solution. Gather the requirement or guideline from ISP and matched w/ your company policy to work out a solution.
The route summarization should not impact business operation. However, I always recommend to assign a maintenance window for any move & change activity to prevent unpredicatable issue.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.