tunnel mode ipip decapsulate-any
no shutdown
Configuring Tunnel source anylocal Decapsulation
The tunnel source anylocal command allows a multipoint receive-only tunnel to decapsulate
tunnel packets addressed to any IPv4 or IPv6 (depending on the tunnel mode) address configured on the
switch that is operationally UP.
The source anylocal parameters can be used for packet decapsulation instead of the ip address or
interface (tunnel allow-remote command), but only on multipoint receive-only mode tunnels.
The following sample configuration shows how to use the tunnel source anylocal command.
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 anylocal
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
!
interface Tunnel 1
ip address 1.1.1.1/24
ipv6 address 1abd::1/64
tunnel source anylocal
tunnel allow-remote 40.1.1.2
tunnel mode ipip decapsulate-any
no shutdown
Guidelines for Configuring Multipoint Receive-Only
Tunnels
• You can configure up to eight remote end-points for a multipoint receive-only tunnel. The maximum
number of remote end-points supported for all multipoint receive-only tunnels on the switch
depends on the hardware table size to setup termination.
• The IP MTU configured on the physical interface determines how multiple nested encapsulated
packets are handled in a multipoint receive-only tunnel.
• Control-plane packets received on a multipoint receive-only tunnel are destined to the local IP
address and routed to the CPU after decapsulation. A response to these packets from the switch is
only possible if the route to the sender does not pass through a receive-only tunnel.
• Multipathing over more than one VLAN interface is not supported on packets routed through the
tunnel interface.
• IP tunnel interfaces are supported over ECMP paths to the next hop. ECMP paths over IP tunnel
interfaces are supported. ARP and neighbor resolution for the IP tunnel next-hop are supported.
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Tunneling
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