<interface ID> is a decimal or hex ( 0x prefix) 32-bit number. After installing ipsec on both sides, I have configured Ipsec as follows :-Site A :-1 . Looking at using MikroTik equipment for an MPEG over IP link. Cisco IOS and StrongSWAN IPSEC VPN | Rayanfam Blog auto . How To Setup A Site To Site VPN Connection with Strongswan : P12 strongSwan_client.p12 . Из спортивного интереса состыковал по IPSec Juniper SRX и OpenWRT (StrongSWAN) с использованием X509-сертификатов для взаимной аутентификации. Set up GRE tunnel between local "virtual" address and tunnel endpoint (reachable only via IPSec): ip tunnel add gre6in4 mode gre ttl 255 remote 192.168.101.2 local 192.168.101.1 pmtudisc. Issue #3001: Problem for setting up a gre tunnel over ipsec strongswan ... I recently configured IPSEC(with strongswan) over GRE (just regular VTI type gre) and it worked. Juniper + OpenWRT IPSec with X509: klink0v — LiveJournal Slow speed through gre+ipsec tunnel - MikroTik IPsec - RouterOS - MikroTik Documentation . Cisco Content Hub - Configuring IPsec VPN Fragmentation and MTU You can configure an IPsec tunnel when you want to use a protocol other than SSL to secure traffic that traverses a wide area network (WAN), from a BIG-IP ® system to third-party device. CLI举例：通过开源软件OpenSWan与建立IPSec VPN隧道 It is an Internet Engineering Task Force (IETF) suite of protocols between two communication points across the Internet Protocol network that provide data authentication, data integrity, and confidentiality. Go to CONFIGURATION > Configuration Tree > Box > Assigned Services > VPN-Service > Site to Site. networking - MikroTik GRE over IPSec - Server Fault If you use StrongSwan as IKE daemon, please move the host certificates to /etc/ipsec.d/certs/ and private key to /etc/ipsec.d/private/ so that StrongSwan has permission to access those files. Home Cisco IOS and StrongSWAN IPSEC VPN. • For GRE over IPsec, the IP MTU of the GRE tunnel interface should be set below the egress interface MTU by at least the overhead of IPsec encryption and the 24-byte GRE+IP . IPSec is an encryption and authentication standard that can be used to build secure Virtual Private Networks (VPNs). IP/IPX connectivity was tested with IP/IPX ping between devices 2513A and 2513B. Post. Post by Kaushal Shriyan Hi, Are there any steps to set up route based VPN using Strongswan IPsec tunnel? Itâ s been a while so not sure if there is a simpler way, but then ran BGP over the GRE tunnel for dynamic routing EKG. A variant of an IPsec VPN that also uses the Level 2 Tunneling Protocol ( L2TP) is usually called an L2TP/IPsec VPN, which requires the Optional channel xl2tpd application.