D-Link DGS-3612 Router Manual PDF (Setup & Configuration Guide)

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delete trusted_host

Parameters

ipaddr

- The IP address of the trusted host.

network

- The network address of the trusted network.

all

- All trusted hosts will be deleted.

Restrictions

Only Administrator and Operator-level users can issue this command.

Example usage:

To delete the trusted host:

DGS-3627:admin# delete trusted_host 10.48.74.121

Command: delete trusted_host 10.48.74.121

Success.

DGS-3627:admin#

show trusted_host

Purpose

Used to display a list of trusted hosts entered on the switch using the create trusted_host

command above.

Syntax

show trusted_host

Description

The show trusted host command displays the trusted hosts.

Parameters

None.

Restrictions

None.

Example usage:

To display a trusted host:

DGS-3627:admin# show trusted_host

Command: show trusted_host

Management Stations

IP Address

------------------------

10.48.93.100

10.51.17.1

10.50.95.90

Total Entries:3

DGS-3627:admin#

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101

UNICAST ROUTE COMMANDS

Route Preference is a way for routers to select the best path when there are two or more different routes to the same

destination from two different routing protocols. The majority of routing protocols are not compatible when used in

conjunction with each other. This Switch supports and may be configured for many routing protocols, as a stand alone

switch or more importantly, in utilizing the stacking function and Single IP Management of the Switch. Therefore the ability

to exchange route information and select the best path is essential to optimal use of the Switch and its capabilities.

The first decision the Switch will make in selecting the best path is to consult the Route Preference Settings table of the

Switch. This table can be viewed using the

show route preference

command, and it holds the list of possible routing

protocols currently implemented in the Switch, along with a reliability value which determines which routing protocol will

be the most dependable to route packets. Below is a list of the default route preferences set on the Switch.

Route Type

Validity Range

Default Value

Default

1-999

Local

0 – Permanently set on the Switch and not configurable.

Static

1 – 999

RIP

1 – 999

100

OSPF Intra

1 – 999

OSPF Inter

1 – 999

OSPF ExtT1

1 – 999

110

OSPF ExtT2

1 – 999

115

EBGP

1 – 999

IBGP

1 – 999

130

As shown above, Local will always be the first choice for routing purposes and the next most reliable path is Static due to

the fact that its has the next lowest value. To set a higher reliability for a route, change its value to a number less than the

value of a route preference that has a greater reliability value using the

config route preference

command. For example,

the user wishes to make RIP the most reliable route, the user can change its value to one that is less than the lowest

value (Static - 60) or the user could change the other route values to more than 100.

The user should be aware of three points before configuring the route preference.

•

No two route preference values can be the same. Entering the same route preference may cause the Switch to

crash due to indecision by the Switch.

•

If the user is not fully aware of all the features and functions of the routing protocols on the Switch, a change in

the default route preference value may cause routing loops or black holes.

•

After changing the route preference value for a specific routing protocol, that protocol needs to be restarted

because the previously learned routes have been dropped from the Switch. The Switch must learn the routes

again before the new settings can take affect.

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The Unicast Route commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in

the following table.

Command

Parameters

create iproute

[default | <network_address>] [null0 | <ipaddr> {<metric 1-65535>} {[primary |

backup | weight <value 1-4>]}]

delete iproute

[default | <network_address>] [null0 | <ipaddr>]

show iproute

{[<network_address> | <ipaddr>]} {[static | rip | ospf | bgp | hardware]}

config route preference

show route preference

{[ local | static | default | rip | ospf | ospfIntra | ospfInter | ospfExt1 | ospfExt2 |

ebgp | ibgp]}

create route redistribute dst ospf

src [static | rip | bgp | local] {mettype [1 | 2] | metric <value 0-16777214>}

create route redistribute dst rip

inter+e2]] {metric <value 0-16>}

create route redistribute dst bgp

inter+e2]] {metric <uint 0-4294967295> | route_map <map_name 16>}

delete route redistribute

config route redistribute dst ospf

src [static | rip | bgp | local] {mettype [1 | 2] | metric <value 0-16777214>}(1)

config route redistribute dst rip

inter+e2]] {metric <value 0-16>}

config route redistribute dst bgp

inter+e2]] {metric <uint 0-4294967295> | [route_map <map_name 16> |

no_route_map]}

enable ecmp ospf

disable ecmp ospf

show route redistribute

{dst [rip | ospf | bgp] | src [rip | static | local | bgp | ospf]}

config ecmp algorithm

{ip_destination | [ip_source | crc_low | crc_high] | tcp_udp_port}(1)

show ecmp

Each command is listed, in detail, in the following sections.

create iproute

Purpose

Used to create an IP route entry to the switch’s IP routing table.

Syntax

create iproute [default | <network_address>] [null0 | <ipaddr> {<metric 1-65535>}

{[primary | backup | weight <value 1-4>]}]

Description

Use this command to create an IP static route.

Selecting “primary” or “backup” means the newly created route is a floating static route.

Selecting “weight” means the newly created route is a static multipath route.

Floating static route and static multipath route are mutually exclusive.

If none of the following, “primary”, “backup” or “weight,” is selected, the static route will:

be primary if there is no primary route that has the same destination;

be backup if there has been a primary route that has the same destination.

fail to create if there have been a primary route and a backup route that have the same

destination.

fail to create if there has been one static multipath route that has the same destination.

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create iproute

It will fail if a user wants to create a floating static route and there has been one static

multipath route with the same destination.

It will fail if a user wants to create a static multipath route and there has been a floating static

route, whether primary or backup.

Parameters

default

- Create an IP default route (0.0.0.0/0).

network_address

- The IP address and net mask of the destination of the route. The address

and the mask can be set by the traditional format (for example, 10.1.2.3/255.0.0.0 or in CIDR

format, 10.1.2.3/16).

null0

- Specify null interface as the next hop.

ipaddr

- The IP address for the next hop router.

metric

- The default setting is 1.

primary

- Specify the route as the primary route to the destination.

backup

- Specify the route as the backup route to the destination.

weight

- Specify the route as the static multipath route. The default setting is 1.

One route’s weight will determine its ratio when used by data packets forwarding to one

destination.

Restrictions

Only Administrator and Operator-level users can issue this command.

Example usage:

To add a floating static route and a static multipath route:

DGS-3627:admin# create iproute 10.48.74.121/255.0.0.0 10.1.1.254 primary

Command: create iproute 10.48.74.121/8 10.1.1.254 primary

Success.

DGS-3627:admin# create iproute 11.53.73.131/8 10.1.2.11 weight 2

Command: create iproute 11.53.73.131/8 10.1.2.11 weight 2

Success.

DGS-3627:admin#

delete iproute default

Purpose

Used to delete an IP route entry from the switch’s IP routing table.

Syntax

delete iproute [default | <network_address>] [null0 | <ipaddr>]

Description

Use this command to delete an IP static route.

Parameters

default

- Deletes an IP default route (0.0.0.0/0).

network_address

- The IP address and net mask of the destination of the route. The address

and the mask can be set by the traditional format (for example, 10.1.2.3/255.0.0.0 or in CIDR

format, 10.1.2.3/16).

null0

- Specify null interface as the next hop.

ipaddr

- Specify the next hop IP address of the route need to be deleted.

Restrictions

Only Administrator and Operator-level users can issue this command.

Example usage:

To delete an IP static route:

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DGS-3627:admin# delete iproute 10.48.74.121/255.0.0.0 10.1.1.254

Command: delete iproute 10.48.74.121/8 10.1.1.254

Success.

DGS-3627:admin#

show iproute

Purpose

Used to display the switch’s current IP routing table.

Syntax

show iproute {[<network_address> | <ipaddr>]} {[static | rip | ospf | bgp | hardware]}

Description

Use this command to display the switch’s IP routing table.

Parameters

network_address

- Specify the destination network address of the route to be displayed.

ipaddr

- Specify the destination IP address of the route to be displayed. The longest prefix

matched route will be displayed.

static

- Specify to display only static routes. One static route may be active or inactive.

rip

- Specify to display only RIP routes.

ospf

- Specify to display only OSPF routes.

bgp

- Specify to display only BGP routes.

hardware

- Specify to display only the routes that have been written into the chip.

Restrictions

None.

Example usage:

To display the contents of the IP routing table:

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