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xStack® DGS-3420 Series Layer 2 Managed Stackable Gigabit Switch CLI Reference Guide
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Format
disable ip_tunnel {<tunnel_name 12>}
Parameters
<tunnel_name 12> - (Optional) Enter the IP tunnel interface name used here. This name can be
up to 12 characters long.
Restrictions
Only Administrator, Operator and Power-User level users can issue this command.
Example
To disable an IP tunnel interface (Tunnel name is “tn2”):
DGS-3420-28SC:admin# disable ip_tunnel tn2
Command: disable ip_tunnel tn2
Success.
DGS-3420-28SC:admin#
39-9 config ip_tunnel gre
Description
This command is used to configure an existing tunnel as a GRE tunnel (IPv6/IPv4-in-IPv4 or
IPv6/IPv4-in-IPv6) on the switch. If this tunnel has been configured in another mode before, the
tunnel’s information will still exist in the database. However, whether the tunnel’s former
information is valid or not, depends on the current mode.
GRE tunnel are simple point-to-point tunnels that can be used within a site or between sites.
When a user wants to configure a GRE IPv6/IPv4-in-IPv4 tunnel, both the source and destination
address must be IPv4 addresses because the delivery protocol is the IPv4 protocol. If the source
and destination address type are not consistent, then the GRE tunnel will not work.
When a user wants to configure a GRE IPv6/IPv4-in-IPv6 tunnel, both the source and destination
address must be IPv6 addresses because the delivery protocol is the IPv6 protocol. If the source
and destination address type are not consistent then the GRE tunnel will not work.
Format
config ip_tunnel gre <tunnel_name 12> {ipaddress <network_address> | ipv6address
<ipv6networkaddr> | source [<ipaddr> | <ipv6addr>] | destination [<ipaddr> | <ipv6addr>]}(1)
Parameters
<tunnel_name 12> - Enter the IP tunnel interface name used here. This name can be up to 12
characters long.
ipaddress - (Optional) Specifies the IPv4 address assigned to the GRE tunnel interface. IPv4
processing will be enabled on the IPv4 tunnel interface when an IPv4 address is configured.
This IPv4 address is not connected with the tunnel source or destination IPv4 address.