Dell S4048T User Manual

Tunneling
Tunnel interfaces create a logical tunnel for IPv4 or IPv6 traffic. Tunneling supports RFC 2003, RFC 2473, and
4213.
DSCP, hop-limits, flow label values, open shortest path first (OSPF) v2, and OSPFv3 are supported. Internet
control message protocol (ICMP) error relay, PATH MTU transmission, and fragmented packets are not
supported.
Topics:
• Configuring a Tunnel
• Configuring Tunnel Keepalive Settings
• Configuring a Tunnel Interface
• Configuring Tunnel Allow-Remote Decapsulation
• Configuring the Tunnel Source Anylocal
Configuring a Tunnel
You can configure a tunnel in IPv6 mode, IPv6IP mode, and IPIP mode.
• If the tunnel mode is IPIP or IPv6IP, the tunnel source address and the tunnel destination address must
be an IPv4 address.
• If the tunnel mode is IPv6, the tunnel source address and the tunnel destination address must be an IPv6
address.
• If the tunnel mode is IPv6 or IPIP, you can use either an IPv6 address or an IPv4 address for the logical
address of the tunnel, but in IPv6IP mode, the logical address must be an IPv6 address.
The following sample configuration shows a tunnel configured in IPv6 mode (carries IPv6 and IPv4 traffic).
Dell(conf)#interface tunnel 1
Dell(conf-if-tu-1)#tunnel source 30.1.1.1
Dell(conf-if-tu-1)#tunnel destination 50.1.1.1
Dell(conf-if-tu-1)#tunnel mode ipip
Dell(conf-if-tu-1)#ip address 1.1.1.1/24
Dell(conf-if-tu-1)#ipv6 address 1::1/64
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 1::1/64
tunnel destination 50.1.1.1
tunnel source 30.1.1.1
tunnel mode ipip
no shutdown
57
Tunneling 1084

Dell S4048T Specifications

General

Switching Capacity	1.44 Tbps
Rack Units	1U
Form Factor	Rack-mountable
Power Device	Internal power supply
Power Redundancy	Optional
Product Type	Switch
Jumbo Frame Support	Yes
Routing Protocol	OSPF, BGP, RIP, VRRP, PIM-SM, IGMP
Remote Management Protocol	SNMP, RMON, Telnet, SSH
Features	Quality of Service (QoS), Jumbo Frames Support, Virtual Route Redundancy Protocol (VRRP), VLAN support, sFlow, Multiple Spanning Tree Protocol (MSTP), Rapid Spanning Tree Protocol (RSTP), IPv6 support
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3ae
Dimensions (W x D x H)	17.3 in x 16 in x 1.7 in
Operating Temperature	0°C to 40 °C
Operating Humidity	10% to 90% (non-condensing)