Hello Cisco, I'm trying to figure out why my ISP adds this static route to an internal address to my routing table. I was able to determine that it is very important by adding an ACL to block outbound traffic to it. Is it just some ISP magic?
Thank you in advance for any assistance!
ip address dhcp
ip nat outside
126.96.36.199/24 is subnetted, 1 subnets
C <omitted> is directly connected, FastEthernet4
172.19.0.0/32 is subnetted, 1 subnets
S 172.19.41.19 [254/0] via 188.8.131.52, FastEthernet4
I am guessing that the address 172.19.41.19 is some kind of management or monitoring station in the provider network. I have seen some situations like this where the provider has management and/or monitoring stations that want to track the public address but the devices are in private address space within the provider network. I would suggest that you ask the provider about the address and about the impact if you block it. I have had the situation a couple of times where the customer did block the extra address and it did have a negative effect on their network connectivity.
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.