Robustel R1520 User Guide
RT056_UG_R1520_v.1.0.3 Dec. 25, 2021 88/159
Select from “3DES”, “AES128”, “AES192”or “AES256” when you select “ESP”
in “Protocol”. Higher security means more complex implementation and
lower speed. DES is enough to meet general requirements. Use 3DES when
high confidentiality and security are required.
Select from “MD5”, “SHA1”, “SHA2 256” or “SHA2 512” to be used in SA
negotiation.
Select from “PFS(N/A)”, “DHgroup1”,“DHgroup2”, “DHgroup5”,
“DHgroup14”, “DHgroup15”, “DHgroup16”, “DHgroup17” or “DHgroup18”
to be used in SA negotiation.
Set the IPsec SA lifetime. When negotiating to set up IPsec SAs, IKE uses the
smaller one between the lifetime set locally and the lifetime proposed by
the peer.
Set the interval after which DPD is triggered if no IPsec protected packets is
received from the peer. DPD is a Dead peer detection. DPD irregularly
detects dead IKE peers. When the local end sends an IPsec packet, DPD
checks the time the last IPsec packet was received from the peer. If the time
exceeds the DPD interval, it sends a DPD hello to the peer. If the local end
receives no DPD acknowledgment within the DPD packet retransmission
interval, it retransmits the DPD hello. If the local end still receives no DPD
acknowledgment after having made the maximum number of
retransmission attempts, it considers the peer already dead, and clears the
IKE SA and the IPsec SAs based on the IKE SA.
Set the timeout of DPD (Dead Peer Detection) packets.
Click the toggle button to enable/disable this option. Enable to compress
the inner headers of IP packets.
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