HP VPN Firewall Appliances VPN Command Reference

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gre p2mp: Specifies the point-to-multipoint GRE tunnel mode.
ipsec ipv4: Specifies the IPsec over IPv4 tunnel mode.
ipv4-ipv4: Specifies the IPv4 over IPv4 tunnel mode.
ipv4-ipv6: Specifies the IPv4 over IPv6 manual tunnel mode.
ipv4-ipv6 dslite-aftr: Specifies the IPv4 over IPv6 DS-Lite tunnel mode on the AFTR.
ipv4-ipv6 dslite-cpe: Specifies the IPv4 over IPv6 DS-Lite tunnel mode on the CPE.
ipv6-ipv4: Specifies the IPv6 over IPv4 manual tunnel mode.
ipv6-ipv4 6to4: Specifies the IPv6 over IPv4 6to4 tunnel mode.
ipv6-ipv4 auto-tunnel: Specifies the IPv6 over IPv4 automatic tunnel mode.
ipv6-ipv4 isatap: Specifies the IPv6 over IPv4 ISATAP tunnel mode.
ipv6-ipv6: Specifies the IPv6 over IPv6 tunnel mode.
Usage guidelines
You can select a tunnel mode according to the actual network topology and application. The two ends
of a tunnel must have the same tunnel mode specified. Otherwise, traffic transmission might fail.
Only one automatic tunnel can be created at the start point of a tunnel.
Examples
# Specify the IPv4 over IPv4 tunnel mode for interface Tunnel 2.
<Sysname> system-view
[Sysname] interface tunnel 2
[Sysname-Tunnel2] tunnel-protocol ipv4-ipv4