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Hardware Version :

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ISP :

Hello,
I am trying to monitor ppp interface with cacti.
The problem is, i can see the interface and IP address on cacti but interface seems down.
Meanwhile.. I am connected to internet and the interface is up with same ip addr.

If i reboot modem i seems up for a while then goes down (only in snmp)
By the way, my connection settings for this connection is.. always connected + timeout alue is set to 0




I have the latest firmware already.