Questions tagged [loopback]

For questions about loopback interfaces on network devices. For instance, you want to configure routing on your layer 3 switch and for that you want to configure a loopback interface.

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「Netscreen」 VPN UP/DOWN due to loopback address source monitoring

I am dealing with a problem with Netscreen VPN. Topology is basically Server Side ーー> (Agg2)Trust/Untrust(Agg1)ーー> ーー> Remote Office (Yamaha) 100.66.xx.0/24 ーー> Netscreen VPN ーー> Internet ーー> 100....
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Loopback on T1 not showing up

I'm a T1 tech for a major US ISP. We regularly remotely loopback T1s (at the smartjack) and test them before the installation. Recently I got 3 new T1s in a bundle that acted weird, and I hoping you ...