Routing Protocols in Oracle Solaris

This section describes two routing protocols supported in Oracle Solaris: Routing Information Protocol (RIP) and ICMP Router Discovery (RDISC). RIP and RDISC are both standard TCP/IP protocols. For complete lists of routing protocols available in Oracle Solaris, refer to Table 7-1 and Table 7-2.

Routing Information Protocol (RIP)

RIP is implemented by in.routed, the routing daemon, which automatically starts when the system boots. When run on a router with the s option specified, in.routed fills the kernel routing table with a route to every reachable network and advertises “reachability” through all network interfaces.

When run on a host with the q option specified, in.routed extracts routing information but does not advertise reachability. On hosts, routing information can be extracted in two ways:

Do not specify the S flag (capital “S”: “Space-saving mode”). in.routed builds a full routing table exactly as it does on a router.
Specify the S flag. in.routed creates a minimal kernel table, containing a single default route for each available router.

ICMP Router Discovery (RDISC) Protocol

Hosts use RDISC to obtain routing information from routers. Thus, when hosts are running RDISC, routers must also run another protocol, such as RIP, in order to exchange router information.

RDISC is implemented by in.routed, which should run on both routers and hosts. On hosts, in.routed uses RDISC to discover default routes from routers that advertise themselves through RDISC. On routers, in.routed uses RDISC to advertise default routes to hosts on directly-connected networks. See the in.routed(1M) man page and the gateways(4) man page.

Tables of Routing Protocols in Oracle Solaris

The following table lists all the routing protocols that are supported in Oracle Solaris

Table 7-1 Oracle Solaris Routing Protocols

Protocol	Associated Daemon	Description	For Instructions
Routing Information Protocol (RIP)	`in.routed`	IGP that routes IPv4 packets and maintains a routing table	How to Configure an IPv4 Router
Internet Control Message Protocol (ICMP) Router Discovery	`in.routed`	Used by hosts to discover the presence of a router on the network	How to Enable Static Routing on a Single-Interface Host and How to Enable Dynamic Routing on a Single-Interface System
Routing Information Protocol, next generation (RIPng) Protocol	`in.ripngd`	IGP that routes IPv6 packets and maintains a routing table	How to Configure an IPv6-Enabled Router
Neighbor Discovery (ND) Protocol	`in.ndpd`	Advertises the presence of an IPv6 router and discovers the presence of IPv6 hosts on a network	Configuring an IPv6 Interface

The following table lists the Open Source Quagga routing protocol suite that are also supported in Oracle Solaris.

Table 7-2 Open Source Quagga Protocols

Protocol	Daemon	Description
RIP protocol	`ripd`	IPv4 distance vectoring IGP that routes IPv4 packets and advertises its routing table to neighbors.
RIPng	`ripngd`	IPv6 distance vectoring IGP. Routes IPv6 packets and maintains a routing table.
Open Shortest Path First (OSPF) protocol	`ospfd`	IPv4 link state IGP for packet routing and high availability networking
Border Gateway Protocol (BGP)	`bgpd`	IPv4 and IPv6 EGP for routing across administrative domains.

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