IPsec VPN Configuration Example: Juniper SRX – Zscaler

[SRX] How to troubleshoot a VPN that is up, but is not Jun 29, 2020 clear a vpn tunnel - Cisco Community Hi, clear isakmp sa alone will bring down or clear all active l2l ipsec tunnels including ra vpn tunnels as well. if you want to disconnect or bounce specific l2l tunnel specify the peer address: clear crypto isakmp sa . once you brake that particular tunnel you can re-start it by just sending interesting traffic again. SRX & J Series Site-to-Site VPN Configurator - Support SRX & J Series Site-to-Site VPN Configuration Generator. Downloads. Platforms. Junos ScreenOS Junos Space All Downloads. Popular Platform Downloads. EX2200 EX2200C EX3300 EX4200 EX4300. Tunnel Interface : st0. Tunnel Interface Type Numbered Unnumbered F: Tunnel Interface IP . Juniper SRX Configurations for Route Based and Policy

This is an example of a tunnel between a Juniper SRX and Cisco ASA using. AES256 CBC (Debatable whether AES-CBC is better than AES-GCM, but GCM is easier on your CPU) SHA1 (SHA256 would be better) PFS Group 5 (Group 19 would be better) Juniper SRX IPSec¶

Anyconnect uses the point-to-point adapter generated by the external tunnel. When establishing a VPN tunnel over a PPP connection, the client must exclude traffic destined for the ASA from the tunneled traffic intended for destinations beyond the ASA. To specify whether and how to determine the exclusion route, use the PPP exclusion setting.

Juniper SRX and Cisco ASA · Cryptomonkeys Consulting

What fixed it was completely deleting the entire Site to Site VPN, letting it provision, then recreating it as you specified. Even weirder, the tunnel then came up despite the fact that "left" and "right" mismatched on both ends. The SRX said 10.0.0.0/16 and 10.1.0.0/16 but the /etc/ipsec.conf on the USG said 0.0.0.0/0 for both left and right.