we are running client - server application in which server send message using destination port 1010 to client. we are using services of different ISP to route our packet upto destination that's ok . Now one of our new ISP's using DSL to connect our clients , And thr (DSL ISP) our udp packets not reaching upto our clients. what could be problem in routes or access list. we can access all router of isp. please tell me how do i cheke where udp packet are blocking.
In a typical DSL scenario your router gets one internet IP for communication. All your client hosts have private IPs. To be able to communicate with other hosts on the internet your router replaces the private IP (source IP) in each packet with its official IP address. To be able to deliver the return traffic it keeps those translations in a table, the NAT table.
If there is no entry in the NAT table the router does not know, which internal IP to place in the packet arrivig with the official IP and thus drops the packet.
That could cause your communication to fail.
A possible workaround would be to use f.e. VPN tunnels and avoid NAT for your internal traffic. Or maybe the application can be modified/configured to be "NAT aware and compliant".
let me clear you more, as we are a lottery operator so we hv to fulsh the result on every 15 minutes on client screen/machine using UDP protocol port 1010. our retiler r getting result but for that they hv to reboot their application on each 15 minutes.(so result is reaching thr but after rebooting the machine)it happning with DSL user only. our other user using gprs/CDMA dialup no problem thr result is printed on screen at right time no rebooting.
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.