Name

router — format of router component configuration

DESCRIPTION

General syntax rules of Kernun Firewall configuration files are described in configuration(7). This man page describes types, sections and items specific for the router component configuration.

Repeatable sections/items are marked by the '*' before section/item name.

TYPES

Configuration directives have attributes of several value-types. For the basic types description, see configuration(7).

Enumeration is a list of words (names) representing integer values. Some enumerations accept both names and direct integer values; in this case, enumeration description contains values for every name (in parenthesis next to name). For other enumerations, using of names is obligatory.

The following enumerations are used in router configuration directives:

yes-no (see common(5))

name-selection (see common(5))

export-import-mode (name-usage obligatory)

none, filter, all

ospf-authentication (name-usage obligatory)

none, simple, cryptographic

ospf-area-id-mode (name-usage obligatory)

number, dotted

ITEMS AND SECTIONS

Configuration of router library component consists of following prototypes:


  export-import-routes ... ;
  router-protocol { ... }
  router { ... }
  bird4 { ... }
  bird6 { ... }
    

Description:

export-import-routes none;

export-import-routes filter filter;

export-import-routes [all];

Interchange of routes between protocol and engine.

<branching element> (type: export-import-mode, optional, default: all)

Interchange mode.

filter (type: str)

Filter rules.

router-protocol {


  import ... ;
  export ... ;
  scan ... ;
* area name { ... }
* raw ... ;
}

        

Protocol configuration.

Items & subsections:

import none;

import filter filter;

import [all];

Import routes from protocol module to routing engine.

<branching element> (type: export-import-mode, optional, default: all)

Interchange mode.

filter (type: str)

Filter rules.

export none;

export filter filter;

export [all];

Export routes from routing engine to protocol module.

<branching element> (type: export-import-mode, optional, default: all)

Interchange mode.

filter (type: str)

Filter rules.

scan [time time];

Period of scanning protocol route sources.

time time (type: uint16, optional, default: 10)

area name {


  id ... ;
* interface name { ... }
  stub ... ;
* raw ... ;
}

            

OSPF area definition.

Constraints:

Backbone area cannot be stub.

Items & subsections:

id [number] [id];

id dotted [addr];

Area identification

<branching element> (type: ospf-area-id-mode, optional, default: number)

id (type: uint32, optional, default: 0)

addr (type: str, optional, default: "")

Constraints:

Dotted area ID must comply with IPv4 address format.

interface name {


* iface ... ;
  cost ... ;
  hello ... ;
  retransmit ... ;
  priority ... ;
  wait ... ;
  dead ... ;
  authentication ... ;
  stub ... ;
* raw ... ;
}

                

Interface parameters definition.

Constraints:

At least one IFACE item required..

Items & subsections:

iface any;

iface [name] name;

Interface name.

<branching element> (type: name-selection, optional, default: name)

name (type: name of interface, see interface(5))

cost [metric];

Interface metric.

metric (type: uint32, optional, default: 10)

hello [seconds];

Hello interval.

Routers on the same network need to have the same value.

seconds (type: uint16, optional, default: 10)

retransmit [seconds];

Retransmition of unacknowledged updates interval.

seconds (type: uint16, optional, default: 5)

priority [prty];

Designated router selection priority.

prty (type: uint16, optional, default: 1)

wait [seconds];

Startup wait time.

seconds (type: uint16, optional, default: 40)

dead [seconds];

Neighbor death timeout.

seconds (type: uint16, optional, default: 40)

authentication [none];

authentication simple password;

authentication cryptographic password;

Authentication mode.

<branching element> (type: ospf-authentication, optional, default: none)

password (type: str)

Constraints:

Password can be max. 8 (simple) or 16 (cryptographic) charaters long.

stub;

Stub interface mode.

raw line;

Raw interface line.

line (type: str)

[End of section router-protocol.area.interface description.]

stub;

Stub area mode.

raw line;

Raw area line.

line (type: str)

[End of section router-protocol.area description.]

raw line;

Raw protocol line.

line (type: str)

[End of section router-protocol description.]

router {


  phase ... ;
* tag ... ;
  use-id ... ;
  direct { ... }
  kernel { ... }
  device { ... }
  static { ... }
  ospf { ... }
* raw ... ;
}

        

Routing daemon configuration.

Items & subsections:

phase [number];

Application Startup Phase.

number (type: uint8, optional, default: 40)

Phase number; the lower one, the earlier start.

tag value;

Configuration factorization tag.

This feature allows admin to create groups of Kernun applications (specially proxies and servers) according to various aspects (belonging to one customer, applications of particular network traffic etc.).

Each application can have several tag attributes and the KAT tool can run some commands (like 'ps', 'start' atc.) for applications with or without given tag.

value (type: str)

Constraints:

Tag must contain letters, digits, hyphens and dots, only.

use-id iface;

Router identification.

iface (type: name of interface, see interface(5))

Interface name, its IPv4 address will be used as router ID.

direct {


* interface ... ;
}

            

Interfaces under direct control of BIRD.

Items & subsections:

interface name;

Interface definition.

name (type: name of interface, see interface(5))

[End of section router.direct description.]

kernel {


  import ... ;
  export ... ;
  scan ... ;
* raw ... ;
  persist ... ;
}

            

Kernel routing table interaction description.

The kernel section is derived from router-protocol section prototype. For detail description of it, see above.

Changes to the kernel section:

Section area is not valid.

Added items & subsections:

persist enabled;

Keeping BIRD routes at exit.

enabled (type: yes-no)

[End of section router.kernel description.]

device {


  import ... ;
  scan ... ;
* raw ... ;
}

            

Network interfaces supervising description.

The device section is derived from router-protocol section prototype. For detail description of it, see above.

Changes to the device section:

Item export is not valid.

Section area is not valid.

static {


  import ... ;
  export ... ;
* raw ... ;
}

            

The static section is derived from router-protocol section prototype. For detail description of it, see above.

Changes to the static section:

Item scan is not valid.

Section area is not valid.

ospf {


  import ... ;
  export ... ;
* area name { ... }
* raw ... ;
  rfc1583compat ... ;
}

            

The ospf section is derived from router-protocol section prototype. For detail description of it, see above.

Changes to the ospf section:

Item scan is not valid.

Added items & subsections:

rfc1583compat;

Routing table calculation according RFC 1583.

[End of section router.ospf description.]

raw line;

Raw router line.

line (type: str)

[End of section router description.]

bird4 {


  phase ... ;
* tag ... ;
  use-id ... ;
  direct { ... }
  kernel { ... }
  device { ... }
  static { ... }
  ospf { ... }
* raw ... ;
}

        

The bird4 section is derived from router section prototype. For detail description of it, see above.

bird6 {


  phase ... ;
* tag ... ;
  use-id ... ;
  direct { ... }
  kernel { ... }
  device { ... }
  static { ... }
  ospf { ... }
* raw ... ;
}

        

The bird6 section is derived from router section prototype. For detail description of it, see above.

Changes to the bird6 section:

USE-ID is mandatory in IPv6.

Section ospf.area.interface (see above)

Item authentication is not valid.

SEE ALSO

configuration(7), common(5), interface(5)