Route Map

C H A P T E R 18

Route Map

The route map feature provides a set of rules to control route redistribution. Before a route is redistributed from one routing domain to another, it is checked against a set of rules. If a rule matches, permit or deny access control is applited to the route. The route map feature also permits modification of route information during redistribution. Use this feature to set conditions with the match clause and set actions with the set clause.

Note - The CLI commands for the route map are applicable only for RIP.

Note - The route-map command enters the route map configuration mode.

18.1 Route Map Commands

The list of CLI commands for the configuration of route map is as follows:

route-map

match interface

match ip address

match ip next-hop

match metric

match tag

match route-type

match metric-type

match as-path tag

match community-list

match origin

match local-preference

set interface

set as-path tag

set community

set local-preference

set origin

set tag

set ip next-hop

set metric-type internal | external

set metric-type type-1 | type-2

set metric

show route-map

18.1.1 `route-map`

Creates a route map with name, sequence number and associated access type. The command also enters the route map configuration mode. The no form of the command removes the specified sequence number from route-map.

route-map name_1-20 [{permit | deny}] [seqnum_1-10]

no route-map name_1-20 [{permit | deny }] [seqnum_1-10]

Syntax Description	name - Identifies the specified route-map in the list of route-maps. The length ranges from 1 to 20. permit - Allows the redistribution of the route. This parameter is currently not supported in the `no` form of the command. deny - Denies the redistribution. This parameter is currently not supported in the `no` form of the command. seqnum - Indicates the position of a new route map in the list of route maps already configured with the same name. The range of the sequence number is from 1 to 10.
Mode	Global Configuration
Default	permit \| deny - permit seqnum - 1
Example	SEFOS(config)# route-map rmap-test
Notes	The `no route map` command deletes the complete route-map if the sequence number is not specified.

Related Commands

show route-map - Displays the configured route maps

18.1.2 `match interface`

Matches the next hop interface of the route out of the specified interface. The no form of the command removes the match interface entry from the match entry list.

match interface {vlan 1-4094 | interface-type interface-id}

no match interface {vlan 1-4094 | interface-type interface-id}

Syntax Description

vlan - VLAN Identifier. The range of the identifier is from 1 to 4094.

interface-type - Specifies the type of the interface.

interface-id - Interface identifier.

Mode

Route Map Configuration

Example

SEFOS(config-rmap-rmap-test)# match interface vlan 1

Related Commands

show route-map - Displays the configured route maps

18.1.3 `match ip address`

Matches the route that have a destination network address against the permitted range of addresses. The no form of the command removes the match IP address entry from the match entry list.

match ip address destination-ip-addr net mask

no match ip address destination-ip-addr net mask

Syntax Description	destination-ip-addr - Specifies the destination network number address. netmask - Specifies the mask that provides the range of the network addresses.
Mode	Route Map Configuration
Example	SEFOS(config-rmap-rmap-test)# match ip address 25.0.0.0 255.0.0.0
Notes	The destination IP address provides the range of addresses that matches the route-map when logically `AND`ed with the mask.

Related Commands

show route-map - Displays the configured route maps

18.1.4 `match ip next-hop`

Matches the routes having the specified next-hop address. The no form of the command removes the match IP next-hop entry from the match entry list.

match ip next-hop next-hop_ip-addr

no  match ip next-hop next-hop_ip-addr

Mode	Route Map Configuration
Example	SEFOS(config-rmap-rmap-test)# match ip next-hop 12.0.0.10

Related Commands

show route-map - Displays the configured route maps

18.1.5 `match metric`

Matches the given metric with the metric specified in the route-map. The no form of the command removes the match metric entry from the match entry list.

match metric 1-0x7fffffff

no match metric 1-0x7fffffff

Mode	Route Map Configuration
Example	SEFOS(config-rmap-rmap-test)# match metric 2000

Related Commands

show route-map - Displays the configured route maps

18.1.6 `match tag`

Matches the given tag with the tag specified in the route-map. The no form of the command removes the match tag entry from the match entry list

match tag 1-0x7fffffff

no match tag 1-0x7fffffff

Mode	Route Map Configuration
Example	SEFOS(config-rmap-rmap-test)# match tag 2020

Related Commands

show route-map - Displays the configured route maps

18.1.7 `match route-type`

Matches the specified route-type with that of in route-map. The no form of the command removes match route-type entry from match entry list.

match route-type {local | internal | external {type-1 |type-2}}

no match route-type {local | internal |external {type-1 | type-2}}

Syntax Description

local - Matches the connected routes.

internal - Matches the static routes.

type-1 - OSPF external type 1 metric.

Cost from the router to ASBR (Autonomous Border System Router) and cost from ASBR to destination are included when route calculation is done for a destination.

external - Matches the external routes of the routing domain.

type-2 - OSPF external type 2 metric.

Cost from the router to ASBR is included when route calculation is done for a destination.

Mode

Route Map Configuration

Example

SEFOS(config-rmap-rmap-test)# match route-type external type-1

Related Commands

show route-map - Displays the configured route maps

18.1.8 `match metric-type`

Matches the metric type of a given route with the specified metric type. The no form of the command removes match metric-type entry from match entry list

match metric-type {internal | external {type-1 | type-2}}

no match metric-type {internal | external {type-1 | type-2}}

Syntax Description

internal - Matches the static or connected metric type.

type-1 - OSPF external type 1 metric.

Cost from the router to ASBR (Autonomous Border System Router) and cost from ASBR to destination are included when route calculation is done for a destination.

external - Matches the external metric type.

type-2 - OSPF external type 2 metric.

Cost from the router to ASBR is included when route calculation is done for a destination.

Mode

Route Map Configuration

Example

SEFOS(config-rmap-rmap-test)# match metric-type internal

Related Commands

show route-map - Displays the configured route maps

18.1.9 `match as-path tag`

Matches the AS path tag of the route with the existing AS-path in BGP. The no form of the command removes match AS-path entry from the match entry list.

match as-path tag 1-0x7fffffff

no match as-path tag 1-0x7fffffff

Mode	Route Map Configuration
Example	SEFOS(config-rmap-rmap-test)# match as-path tag 2828
Notes	This command is applied only when redistributing routes into BGP.

Related Commands

show route-map - Displays the configured route maps

18.1.10 `match community-list`

Matches the BGP communities attribute in the route with the specified community. The no form of the command removes the match community entry from the match entry list.

match community-list {internet | local-as | no-advt | no-export | [comm-num] 1-0x7fffffff | none | string} [exact]

no match community-list {internet | local-as | no-advt | no-export | [comm-num] 1-0x7fffffff | none}

Syntax Description	internet - Internet community. local-as - Local autonomous system community. no-advt - No-advertisement community. no-export - No export community. comm-num - Community number. none - No community. string - Name of the community list. match - Requires an exact match. That is, only the specified communities must be present.
Mode	Route Map Configuration
Example	SEFOS(config-rmap-rmap-test)# match community-list internet
Notes	This command is applied only when redistributing routes into BGP.

Related Commands

show route-map - Displays the configured route maps

18.1.11 `match origin`

Matches the origin of the route in BGP with the specified origin. The no form of the command removes the match origin entry from match entry list.

match origin {igp | egp | incomplete}

no match origin {igp | egp | incomplete}

Syntax Description

igp - Specifies that the route is originated through interior gateway protocol.

egp - Specifies that the route is originated through exterior gateway protocol.

incomplete - Specifies that the route is originated through unknown heritage.

Mode

Route Map Configuration

Example

SEFOS(config-rmap-rmap-test)# match origin igp

Related Commands

show route-map - Displays the configured route maps

18.1.12 `match local-preference`

Matches a preference value for the autonomous system path. The no form of the command removes the match local-preference entry from the match entry list.

match local-preference 1-0x7fffffff

no match local-preference 1-0x7fffffff

Mode	Route Map Configuration
Example	SEFOS(config-rmap-rmap-test)# match local-preference 2626

Related Commands

show route-map - Displays the configured route maps

18.1.13 `set interface`

Sets the next hop interface of the route. The no form of the command removes the set interface entry from the set entry list.

set interface {vlan 1-4094 | interface-type interface-id}

no set interface {vlan 1-4094 | interface-type interface-id}

Syntax Description

vlan - VLAN identifier. The range of the identifier is from 1 to 4094

interface-type - Specifies the type of the interface.

interface-id - Interface identifier.

Mode

Route Map Configuration

Example

SEFOS(config-rmap-rmap-test)# set interface vlan 1

Related Commands

show route-map - Displays the configured route maps

18.1.14 `set as-path tag`

Sets the tag to the existing AS-path in BGP. The no form of the command removes the set AS-path from the set entry list.

set as-path tag 1-0x7fffffff

no set as-path tag 1-0x7fffffff

Mode	Route Map Configuration
Example	SEFOS(config-rmap-rmap-test)# set as-path tag 2929

Related Commands

show route-map - Displays the configured route maps

18.1.15 `set community`

Sets the BGP communities attribute in the route. The no form of the command removes the set community from the set entry list.

set community {internet | local-as | no-advt | no-export | comm-num 1-0x7fffffff | none}

no set community {internet | local-as | no-advt | no-export | comm-num 1-0x7fffffff | none}

Syntax Description

internet - Internet community.

local-as - Local autonomous system community.

no-advt - No advertisement community.

no-export - No export community.

comm-num - Community number.

none - No community.

Mode

Route Map Configuration

Example

SEFOS(config-rmap-rmap-test)# set community no-export

Related Commands

show route-map - Displays the configured route maps

18.1.16 `set local-preference`

Specifies a preference value for the autonomous system path in the route. The no form of the command removes the set local-preference from the set entry list.

set local-preference 1-0x7fffffff

no set local-preference 1-0x7fffffff

Mode	Route Map Configuration
Example	SEFOS(config-rmap-rmap-test)# set local-preference 202020

Related Commands

show route-map - Displays the configured route maps

18.1.17 `set origin`

Sets the origin of the route in BGP. The no form of the command removes the set origin from the set entry list.

set origin  {igp | egp as-value_1-65535 | incomplete}

no set origin {igp | egp as-value_1-65535 | incomplete}

Syntax Description

igp - Specifies that the route is originated through interior gateway protocol.

egp - Specifies that the route is originated through exterior gateway protocol.

incomplete - Specifies that the route is originated through unknown heritage.

Mode

Route Map Configuration

Example

SEFOS(config-rmap-rmap-test)# set origin incomplete

Related Commands

show route-map - Displays the configured route maps

18.1.18 `set tag`

Sets the tag value for BGP, OSPF, or RIP routing protocols in the given route. The no form of the command removes the set tag from the set entry list.

set tag 1-0x7fffffff

no set tag 1-0x7fffffff

Mode	Route Map Configuration
Example	SEFOS(config-rmap-rmap-test)# set tag 282828

Related Commands

show route-map - Displays the configured route maps

18.1.19 `set ip next-hop`

Sets the next hop IP address of the route. The no form of the command removes the set ip next-hop from the set entry list.

set ip next-hop next-hop_ip-addr

no set ip next-hop next-hop_ip-addr

Mode	Route Map Configuration
Example	SEFOS(config-rmap-rmap-test)# set ip next-hop 12.0.0.2

Related Commands

show route-map - Displays the configured route maps

18.1.20 `set metric-type internal | external`

Sets the value of metric type in the route. The no form of the command removes the set metric-type entry from the set entry list.

set metric-type {internal | external {type-1 | type-2}}

no set metric-type {internal | external {type-1 | type-2}}

Syntax Description

internal - Sets the static or connected metric type.

external - Sets the external metric type. Options are as follows:

type-1 - OSPF external type 1 metric.

Cost from the router to ASBR (Autonomous Border System Router) and cost from ASBR to destination are included when route calculation is done for a destination.

type-2 - OSPF external type 2 metric.

Cost from the router to ASBR is included when route calculation is done for a destination.

Mode

Route Map Configuration

Example

SEFOS(config-rmap-rmap-test)# set metric-type external type-2

Related Commands

show route-map - Displays the configured route maps

18.1.21 `set metric-type type-1 | type-2`

Sets the value of external metric type in the route. The no form of the command removes the set metric type from the set entry list.

This command operates similar to that of the command set metric-type internal | external. However, with this command only the external metric type can be set.

set metric-type {type-1 | type-2}

no set metric-type {type-1 | type-2}

Syntax Description

type-1 - OSPF external type 1 metric.

Cost from the router to ASBR (Autonomous Border System Router) and cost from ASBR to destination are included when route calculation is done for a destination.

type-2 - OSPF external type 2 metric.

Cost from the router to ASBR is included when route calculation is done for a destination.

Mode

Route Map Configuration

Example

SEFOS(config-rmap-rmap-test)# set metric-type type-2

Related Commands

show route-map - Displays the configured route maps

18.1.22 `set metric`

Sets the metric value in the route. The no form of the command removes the set metric entry from the set entry list.

set metric 1-0x7fffffff

no set metric 1-0x7fffffff

Mode	Route Map Configuration
Example	SEFOS(config-rmap-rmap-test)# set metric 400

Related Commands

show route-map - Displays the configured route maps

18.1.23 `show route-map`

Displays the configured route maps.

show route-map [name 1-20]

Mode

Privileged EXEC

Example

SEFOS# sh route-map

Route-map rmap-test, Permit, Sequence 1

Match Clauses:

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

LocalPreference 2626

Origin igp

Community internet

ASPath 2828

MetricType internal

RouteType external type-1

Tag 2020

Metric 2000

NextHop 12.0.0.10

Dest N/W 25.0.0.0

Interface vlan1

Set Clauses:

-----------

Interface vlan1

NextHop 12.0.0.2

Metric 400

As-Path 2929

Tag 282828

MetricType external type-2

Community no-export

Origin incomplete

Local Preference 202020

SEFOS# sh route-map rmap-test

Route-map rmap-test, Permit, Sequence 1

Match Clauses:

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

LocalPreference 2626

Origin igp

Community internet

ASPath 2828

MetricType internal

RouteType external type-1

Tag 2020

Metric 2000

NextHop 12.0.0.10

Dest N/W 25.0.0.0

Related Commands

route-map - Creates a route-map with name, sequence number, and associated access type

match interface - Matches next hop interface of the route out of the specified interface

match ip address - Matches the route that have a destination network address against the permitted range of addresses

match ip next-hop - Matches the routes having the specified next hop address

match metric - Matches the given metric with the metric specified in the route-map

match tag - Matches the given tag with the tag specified in the route-map

match route-type - Matches the specified route-type with that of in route-map

match metric-type - Matches the metric type of a given route with the specified metric type

match as-path tag - Matches the AS path tag of the route with the existing AS-path in BGP

match community-list - Matches the BGP communities attribute in the route with the specified community

match origin - Matches the origin of the route in BGP with the specified origin

match local-preference - Specifies a preference value for the autonomous system path in the route

set interface - Sets the next hop interface of the route

set as-path tag - Sets the tag to the existing AS-path in BGP

set community - Sets the BGP communities attribute in the route

set local-preference - Specifies a preference value for the autonomous system path in the route

set origin - Sets the origin of the route in BGP

set tag - Sets the tag value for BGP, OSPF, or RIP routing protocols in the given route

set ip next-hop - Sets the next hop IP address of the route

set metric-type internal | external - Sets the value of metric type in the route

set metric-type type-1 | type-2 - Sets the value of external metric type in the route

set metric - Sets the metric value in the route

18.1 Route Map Commands

18.1.1 route-map

Related Commands

18.1.2 match interface

Related Commands

18.1.3 match ip address

Related Commands

18.1.4 match ip next-hop

Related Commands

18.1.5 match metric

Related Commands

18.1.6 match tag

Related Commands

18.1.7 match route-type

Related Commands

18.1.8 match metric-type

Related Commands

18.1.9 match as-path tag

Related Commands

18.1.10 match community-list

Related Commands

18.1.11 match origin

Related Commands

18.1.12 match local-preference

Related Commands

18.1.13 set interface

Related Commands

18.1.14 set as-path tag

Related Commands

18.1.15 set community

Related Commands

18.1.16 set local-preference

Related Commands

18.1.17 set origin

Related Commands

18.1.18 set tag

Related Commands

18.1.19 set ip next-hop

Related Commands

18.1.20 set metric-type internal | external

Related Commands

18.1.21 set metric-type type-1 | type-2

Related Commands

18.1.22 set metric

Related Commands

18.1.23 show route-map

Related Commands

18.1.1 `route-map`

18.1.2 `match interface`

18.1.3 `match ip address`

18.1.4 `match ip next-hop`

18.1.5 `match metric`

18.1.6 `match tag`

18.1.7 `match route-type`

18.1.8 `match metric-type`

18.1.9 `match as-path tag`

18.1.10 `match community-list`

18.1.11 `match origin`

18.1.12 `match local-preference`

18.1.13 `set interface`

18.1.14 `set as-path tag`

18.1.15 `set community`

18.1.16 `set local-preference`

18.1.17 `set origin`

18.1.18 `set tag`

18.1.19 `set ip next-hop`

18.1.20 `set metric-type internal | external`

18.1.21 `set metric-type type-1 | type-2`

18.1.22 `set metric`

18.1.23 `show route-map`