Tunnel interface 380 ^tun[0-9]+$ tunnel interface must be named tunN tunN Tunnel interface name #include #include #include #include #include #include #include #include Local IP address for this tunnel ipv4 Local IPv4 address for this tunnel ipv6 Local IPv6 address for this tunnel [NOTICE: unavailable for mGRE tunnels] Remote IP address for this tunnel ipv4 Remote IPv4 address for this tunnel ipv6 Remote IPv6 address for this tunnel Physical Interface used for underlaying traffic 6rd network prefix ipv6 IPv6 address and prefix length 6rd relay prefix ipv4net IPv4 prefix of interface for 6rd dhcp interface interface DHCP interface that supplies the local IP address for this tunnel (en|eth|br|bond|gnv|vxlan|wg|tun)[0-9]+ Encapsulation of this tunnel interface gre gre-bridge ipip sit ipip6 ip6ip6 ip6gre gre-bridge Generic Routing Encapsulation bridge interface ipip IP in IP encapsulation sit Simple Internet Transition encapsulation ipip6 IP in IP6 encapsulation ip6ip6 IP6 in IP6 encapsulation ip6gre GRE over IPv6 network (gre|gre-bridge|ipip|sit|ipip6|ip6ip6|ip6gre) Must be one of 'gre' 'gre-bridge' 'ipip' 'sit' 'ipip6' 'ip6ip6' 'ip6gre' Multicast operation over tunnel enable disable enable Enable Multicast disable Disable Multicast (default) (enable|disable) Must be 'disable' or 'enable' Tunnel parameters IPv4 specific tunnel parameters Time to live field 0-255 Time to live (default 255) TTL must be between 0 and 255 Type of Service (TOS) 0-99 Type of Service (TOS) TOS must be between 0 and 99 Tunnel key 0-4294967295 Tunnel key key must be between 0-4294967295 IPv6 specific tunnel parameters Encaplimit field 0-255 Encaplimit (default 4) key must be between 0-255 Flowlabel 0x0-0x0FFFFF Tunnel key, 'inherit' or hex value (0x){0,1}(0?[0-9A-Fa-f]{1,5}) Must be 'inherit' or a number Hoplimit 0-255 Hoplimit (default 64) hoplimit must be between 0-255 Traffic class (Tclass) 0x0-0x0FFFFF Traffic class, 'inherit' or hex value (0x){0,1}(0?[0-9A-Fa-f]{1,2}) Must be 'inherit' or a number