VPN2S not blocking by default UDP 500
With no L2TP VPN or IPsec VPN on the WAN only a IPsec VPN connecting to the LAN at 192.168.255.202 for Site-to-site.
Sending a Identity Protection (Main Mode) UDP 500 to the WAN replays with Informational by the VPN2S.
Workaround make firewall rule to drop from WAN to router.
Comments
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Hi @PeterUK
There are some points need to clarify:
(1) What is your test topology? Could you illustrate it?
(2) What is the symptom? and test procedure? Could you describe them more detailed?
(3) Could you provide your configuration file(Maintenance > Backup / Restore > Backup) with and without workaround solution via private message to me?
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VPN2S to WAN and make a windows 10 VPN L2TP connection over 4G to WAN of the VPN2S.
Send you a packet capture of the symptom and what you need to send to WAN on VPN2S.
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