Configuring Tunnel Source Anylocal Decapsulation; Multipoint Receive-Only Tunnels; Guidelines For Configuring Multipoint Receive-Only Tunnels - Dell C9000 Series Networking Configuration Manual

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

Multipoint Receive-Only Tunnels

A multipoint receive-only IP tunnel decapsulates packets from remote end-points and never forwards packets
on the tunnel. You can configure an additional level of security on a receive-only IP tunnel by specifying a
valid prefix or range of remote peers.
The operational status of a multipoint receive-only tunnel interface always remains up. Packets from the
remote addresses configured for a multipoint receive-only tunnel are decapsulated and are not marked for
neighbor resolution as for a standard tunnel's destination address. Connected routes for the tunnel interface's
IP subnet do not point towards the tunnel but towards the switch CPU for the receive-only tunnel. The tunnel
interface can function as an unnumbered interface with no IPv4/IPv6 address assigned.
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.
Tunneling 1118