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tunnel keepalive 1.1.1.2 attempts 4 interval 6
tunnel mode ipip
no shutdown
Configuring a Tunnel Interface
You can configure the tunnel interface using the ip unnumbered and ipv6 unnumbered commands.
To configure the tunnel interface to operate without a unique explicit IP or IPv6 address, select the
interface from which the tunnel borrows its address.
The following sample configuration shows how to use the interface tunnel configuration
commands.
Dell(conf-if-te-1/1/1)#show config
!
interface TenGigabitEthernet 1/1/1
ip address 20.1.1.1/24
ipv6 address 20:1::1/64
no shutdown
Dell(conf)#interface tunnel 1
Dell(conf-if-tu-1)#
ip unnumbered tengigabitethernet 1/1/1
Dell(conf-if-tu-1)#ipv6 unnumbered tengigabitethernet 1/1/1
Dell(conf-if-tu-1)#tunnel source 40.1.1.1
Dell(conf-if-tu-1)#tunnel mode ipip decapsulate-any
Dell(conf-if-tu-1)#no shutdown
Dell(conf-if-tu-1)#show config
!
interface Tunnel 1
ip unnumbered TenGigabitEthernet 1/1/1
ipv6 unnumbered TenGigabitEthernet 1/1/1
tunnel source 40.1.1.1
tunnel mode ipip decapsulate-any
no shutdown
Dell(conf-if-tu-1)#
Configuring Tunnel Allow-Remote Decapsulation
You can configure an IPv4 or IPV6 address or prefix whose tunneled packet is accepted for
decapsulation.
• If you do not configure allow-remote entries, tunneled packets from any remote peer address are
accepted.
• You can configure up to eight allow-remote entries on any particular multipoint receive-only tunnel.
The following sample configuration shows how to configure a tunnel allow-remote address.
Dell(conf)#interface tunnel 1
Dell(conf-if-tu-1)#ipv6 address 1abd::1/64
Dell(conf-if-tu-1)#ip address 1.1.1.1/24
Dell(conf-if-tu-1)#tunnel source 40.1.1.1
Dell(conf-if-tu-1)#tunnel mode ipip decapsulate-any
Dell(conf-if-tu-1)#tunnel allow-remote 40.1.1.2
Dell(conf-if-tu-1)#no shutdown
Dell(conf-if-tu-1)#show config
!
926
Tunneling