Why does the first packet not go through? What does 'Permission denied' mean in this context?Ī) I didn't have to enter the password for the XAuth functionality. Tue Sep 15 14:23:57 2020 ipsec: 15 sending retransmit 2 of request message ID 0, seq 1 Tue Sep 15 14:23:50 2020 ipsec: 04 error writing to socket: Permission denied Tue Sep 15 14:23:50 2020 ipsec: 14 sending retransmit 1 of request message ID 0, seq 1 Tue Sep 15 14:23:46 2020 ipsec: 04 error writing to socket: Permission denied Tue Sep 15 14:23:46 2020 ipsec: 13 generating AGGRESSIVE request 0 The IPV6 address of the remote end of the IPSec tunnel is correct. Looking at RUT240's syslog, I see that already the first UDP packet doesn't go through.

Params in RUT240 are IKE1, Aggressive, Tunnel mode, My identifier is the username for XAuth authentication needed by Fritzbox, left and right firewall buttons are checked. I have configured an IPsec VPN on RUT240 trying to connect to the Fritzbox where the IPSec VPN is already activated and successfully used via a smartphone.

I have a test setup here with Fritzbox 7490 R7.12 and RUT240 R1.12.3. As Fritzbox is commonly used, I think that this is of interest to a lot of people and therefore I hope to move this topic forward together as much as possible.

Fritz vpn android 12