Some IP range can't ping router public IP, need to add static route.
i setup two default route for two subnet NAT to internet at a 2801 router, but i found some time it will occur the problem, outside host can not ping the public IP at fa0/1 ADSL interface, problem detail as following:
two outside interface
interface fa0/1-- IP: 202.XXX.XXX.XX --> IP-A
interface serial 0/3/0 - IP: 202.xxx.xxx.xxx IP-B
two default gateway
ip route 0.0.0.0 0.0.0.0 202.XXX.XXX.XXX
ip route 0.0.0.0 0.0.0.0 serial 0/3/0
i using route-map at inside interface for the different subnet goes to different default route to the internet
Problem is some public IP range, can not ping the public IP- A (202.XXX.XXX.XXX) at interface fa0/1.
when i add a static route for the outside IP (which can not ping our IP-A), after i add the route, the ping become success.
Re: Some IP range can't ping router public IP, need to add stati
Can you provide some more information like what the routemap looks like. By default, the router will use the
Static route you have the serial interface defined as it has an admin distance of 0 over
the admin distance of 1 for the IP next hop.
When you say outside host, do you mean people in the internet trying to reach your network IP's of your users behind the 2801 trying to reach some IP address out on the internet.
I am going to assume you have two ISP's attached to this router and they are providing the IP's to you and they are statically routing towards your router. Meaning they are announcing the IP space you are putting on the router to the rest of the internet or are you advertising the IP space to two external ISP's. Trying to understadn the layout of your network to help with your issue.
If you could provide more information, drawing, config etc it would help make troubleshooting this a little easier.
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.