The previous 'connection-type respond' option in IPsec site-to-site peers
was misleading - instead of passively waiting for peer initiation, it would
initiate negotiation when matching traffic appeared, potentially causing
SA duplication and renegotiation loops.
RSA-Keys page was blank, so added the steps to generate and add the keys to
the VPN IPSec config.
Also corrected the IPSec/GRE page where authentication parameter was
missing before remote-id.
