connecting to a FRITZ!Box via VPN à la Cisco IPSec

https://service.avm.de/help/en/FRITZ-Box-7590/019/hilfe_vpn_oeffentliche_ipv4_adresse (in English) https://service.avm.de/help/de/FRITZ-Box-Fon-WLAN-7490/019/hilfe_vpn_oeffentliche_ipv4_adresse (in German) https://en.avm.de/service/fritzbox/fritzbox-7590/knowledge-base/publication/show/200_FRITZ-VPN-cannot-establish-a-VPN-connection-to-FRITZ-Box/ (in English) https://avm.de/service/fritzbox/fritzbox-7360/wissensdatenbank/publication/show/200_FRITZ-Fernzugang-kann-keine-VPN-Verbindung-zur-FRITZ-Box-herstellen/ (in German) https://en.wikipedia.org/wiki/IPsec Fo connecting to a FRITZ!Box via VPN à la Cisco IPsec the remote server (the FRITZ!Box) must have an IPv4 address (only) – if it also has an IPv6 address, connecting won’t work out. It took me quite some time this afternoon… Continue reading connecting to a FRITZ!Box via VPN à la Cisco IPSec