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Since BGP is sent over TCP, the routers are definitely pingable. You know how when you run traceroute you see a bunch of IPs between you and your destination?
by jemfinch 14y ago
Since BGP is sent over TCP, the routers are definitely pingable. You know how when you run traceroute you see a bunch of IPs between you and your destination? Routers like these are those hops.
- Breakthrough 14y agoAh, sorry, I meant now, in the current state. I wonder if they just shut them down (the routers), or blocked all incoming connections from the outside...
- bdonlan 14y agoProbably the simplest thing to do would be to just shut off the ports leading to external networks at the physical layer using management commands. They'd not be pingable from the outside, naturally, and it'd look like a cable cut (until you start doing TDR on the cable anyway), but they could bring it back online quickly once the powers that be choose to do so.
- spydum 14y agoMost providers setup bgp sessions over loopback addresses only reachable from the remote router.. So no, being tcp doesn't imply the should respond to ping.