[j-nsp] Juniper SRX and ssh freeze

[Florian Weimer]

* Julien Goodwin:

> For my SRX at the office back when I installed it (9.6 IIRC) *TCP*
> keepalives would not extend session timeouts, but *SSH* keepalives
> worked very well, that's the ServerAliveInterval setting in OpenSSH.

Typically, TCP keepalives happen at such long intervals that they do
not keep firewall state alive.

-- 
Florian Weimer                <fweimer at bfk.de>
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