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IPSEC Site-to-Site Tunnel UP but no traffic - SPI: 0x0 (0) SEQ: 0x0 (0)

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Hello I'm fighting with this problem for few days. I have two USG 1900 and trying to get IPSEC site-to-site to work. Firmware 4.13 (AAPL.1) Tunnel is connected(status and logs shows that) but no traffic passed through Logs shows errors like below (also for TCP and UDP connections) SPI: 0x0 (0) SEQ: 0x0 (0) No rule found, Dropping ICMP packet *source *destination IPSEC Manual don't say that i need add policy routes to access other network but anyways i tried adding routes with no success. Also tried restore device settings to factory and create tunnel using creator - same result: SPI: 0x0 (0) SEQ: 0x0 (0) No rule found, Dropping ... Tried also L2TP over IPSEC and i CAN access internet but CAN'T ACCESS internal network With L2tp also get SPI: 0x0 (0) SEQ: 0x0 (0) error Tunnels don't work either with nat-t or without it. All ports are open and don't get logs blocking any of ipsec belonging protocols. I tried other device USG100 and tunnel (at least L2tp) work to internet/local network without problems. Can't see any info in logs that can lead me to solve my problem. Even debug from cli ... Any ideas? Regards

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