I need to use VPN with IKEv2 protocol. I tried strongswan installed via opkg. The following error message occurs while using it：
plugin 'openssl' failed to load: Error loading shared library libcrypto.so.1.0.0: No such file or directory (needed by /usr/lib/ipsec/plugins/libstrongswan-openssl.so)
Any suggestions? Thank you very much in advance.
Sounds to me like the used openssl version wasn't compiled with the necessary crypto library.
Could you please run opkg list-installed | grep openssl?
Thank you for your reply. I forgot to mention that I am using sft1200. Here is the list after running opkg list-installed | grep openssl
libopenssl - 1.1.1i-1
libopenssl-conf - 1.1.1i-1
libustream-openssl - 2018-07-30-23a3f283-1
openssl-util - 1.1.1i-1
openvpn-openssl - 2.5.7-3
rtty-openssl - 8.0.1-1
strongswan-mod-openssl - 5.6.3-1
wpad-openssl - 2019-08-08-ca8c2bd2-4
I also can find libcrypto.so.1.1 file in /usr/lib folder.