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- Routed daemon configuration
- Introduction
-
- 11.. TTaasskkss
-
- Many IP networks will operate very well with static routes. A LAN
- with a single gateway will be happy with one default route pointing to
- the gateway.
-
- On the other end, some networks interconnect many simpler networks, so
- have many gateways (routers). Unlike simpler networks where a single
- default route is enough for all machines (except maybe the gateway),
- all computers on those complex networks will need a way to find their
- way through all the available gateways. Here come dynamic routing and
- routed.
-
- 22.. rroouutteedd aanndd _R_I_P
-
- Dynamic routing is a complex subject. Many protocol do exist to
- exchange routes between IP hosts. Many of those protocols involve some
- notion of security (Which machine are allowed to tell me new routes).
- This is not the case with routed. It use a fairly simple protocol
- where every hosts is allowed to tell every other host about the routes
- it knows. Using a simple metric scheme, one is able to located the
- best (or the real) route to a given network. This is what RIP gives
- you. rroouutteedd implement the RIP protocol.
-
- You have three options you may control.
-
- ╖ Do you want to activate routed ?
-
- ╖ Do you want your routed to talk or only listen. If your computer
- has only one interface (a single Ethernet adaptor for example),
- rroouutteedd won't have anything to tell anyway. If you have more than
- one interface but don't want to be known as a router then this
- option is for you.
-
- ╖ If your machine is a router, you may have set a default route on
- it. This default route may be mistakenly taken as "the" default
- route for the entire network. You are allowed to hide this route to
- the network.
-
- 33.. SSttaattee ooff rroouutteedd
-
- rroouutteedd is not known to be much reliable on _L_i_n_u_x. ggaatteedd is often a
- prefered solution especially if you are concerned by security. You
- have much better control over which routes are exported and accepted.
- ggaatteedd does much more than the RIP protocol.
-
- At this point, _L_i_n_u_x_c_o_n_f knows how to start/restart/kill ggaatteedd but not
- much. The magic of /etc/gated.conf is left as an exercise to the
- reader.
-
- An alternative to rroouutteedd might be mmrroouutteedd. I have no information about
- the state of the project though.
-
-