Hi, I have a cisco 2801 with a link MetroEthernet 4mb , a link frame relay 512 through which one vpn ipsec for Metro link just happen mailing services, website and vpn. We wanted to put the http traffic from the metro and in doing so the speed is extremely slow from the PC.
We checked the cpu and is in 15%, delete the nat table and still does not work, the memory is good, as a test, we remove the virtua-reassembly ip command, improved slightly but still the same.
We switched to test mode, connecting the underground link to a 1921 router and it works perfectly the speed is what we want, we returned the change because the router is being used for something else.
But I need to know how I can find out what is wrong with the 2801 if it's a hardware or software problem, because it is the configuration is the same used with the C1921 router that worked perfectly.
The Cisco 1921 router supports, Embedded hardware-accelerated VPN encryption with appropriate license enabled. Can you please share the IOS that you are using on the 1921 and any license if enabled. On a 2801 router IPsec is run in software. Usually at times when there is high IPsec traffic it hits the CPU and causes the CPU process to go high.
Do you have any control plane policing applied on your 2801 device, that is something that could stop packets hitting the CPU and because some of the IPsec packets get dropped you face slowness. On a 1921 if you have the security license Ipsec traffic is handeled in hardware and not the CPU.
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.