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VPNs

  • Support for IPsec tunnel MTU (MX240, MX480, and MX960 with MX-SPC3,SRX5400, SRX5600, and SRX5800 with SPC3, and and vSRX devices)— Starting in Junos OS Release 21.3R1, you can configure the MTU size for IPsec tunnels. This configuration defines the maximum size of an IP packet, including the IPsec overhead.

    On IPv6, we provide support to disable the ICMPv6 Packet Too Big error message.

    [See Configuring IPsec VPN on MX-SPC3 Services Card.]