Manually manipulates the routing tables.
The route command allows you to make manual entries into the network routing tables. The route command distinguishes between routes to hosts and routes to networks by interpreting the network address of the Destination variable, which can be specified either by symbolic name or numeric address. The route command resolves all symbolic names into addresses, using either the /etc/hosts file or the network name server.
Routes to a particular host are distinguished from those to a network by interpreting the Internet address associated with the destination. The optional phs -net and -host force the destination to be interpreted as a network or a host, respectively. If the destination has a local address part of INADDR_ANY or if the destination is the symbolic name of a network, then the route is assumed to be to a network; otherwise, it is presumed to be a route to a host.
For example, 128.32 is interpreted as -host 22.214.171.124; 128.32.130 is interpreted as -host 126.96.36.199; -net 128.32 is interpreted as 188.8.131.52; and -net 128.32.130 is interpreted as 184.108.40.206.
If the route is by way of an interface rather than through a gateway, the -interface argument should be specified. The specified gateway is the address of the host on the common network, indicating the interface to be used for transmission.
The -netmask argument must be followed by an address parameter (to be interpreted as a network mask). One can override the implicit network mask generated in the -inet case by making sure this option follows the Destination parameter.
All symbolic names specified for a destination or gateway are looked up first as a host name, using the gethostbyname subroutine. If this fails, the getnetbyname subroutine is then used to interpret the name as a network name.
If the flush or -f command is specified, route will "flush," or clear, the routing tables of all gateway entries. One can choose to flush only those routes whose destinations are of a given address family, by specifying an optional ph describing which address family.
The netstat -r command displays the current routing information contained in the routing tables.
|-f||Purges all entries in the routing table that are not associated with network interfaces.|
|-i||Enables workload-partition-specific routing
for the workload partition (WPAR). By default, outgoing network traffic
from a WPAR is routed as if it were being sent from the global environment:
|-n||Displays host and network names numerically, rather than symbolically, when reporting results of a flush or of any action in verbose mode.|
|-q||Specifies quiet mode and suppresses all output.|
|-C||Specifies preference for ioctl calls over routing messages for adding and removing routes.|
|-v||Specifies verbose mode and prints additional details.|
|-net||Indicates that the Destination parameter should be interpreted as a network.|
|-netmask||Specifies the network mask to the destination address. Make sure this option follows the Destination parameter.|
|-host||Indicates that the Destination parameter should be interpreted as a host.|
|-prefixlen n||Specifies the length of a destination prefix (the number of bits in the netmask).|
|-@WparName||Displays the network statistics that are associated with the WPAR that is, (@WparName flag). If the @WparName flag is not specified, the network statistics for all the WPARs are displayed.|
The route default is a host (a single computer on the network). When neither the -net parameter nor the -host parameter is specified, but the network portion of the address is specified, the route is assumed to be to a network. The host portion of the address is 0 (zero).
|Arguments|| Specifies one or more of the following arguments. Where n is
specified as a variable to an argument, the value of the n variable
is a positive integer.
|Command|| Specifies one of six possibilities:
|Family||Specifies the address family. The -inet address family is the default. The -inet6 family specifies that all subsequent addresses are in the inet6 family.|
|Destination||Identifies the host or network to which you are directing the route. The Destination parameter can be specified either by symbolic name or numeric address.|
|Gateway||Identifies the gateway to which packets are addressed. The Gateway parameter can be specified either by symbolic name or numeric address.|
Attention RBAC users and Trusted AIX® users: This command can perform privileged operations. Only privileged users can run privileged operations. For more information about authorizations and privileges, see Privileged Command Database in Security. For a list of privileges and the authorizations associated with this command, see the lssecattr command or the getcmdattr subcommand.
- To establish a route
so that a computer on one network can send a message to a computer
on a different network, type:
The 220.127.116.11 address is that of the receiving computer (the Destination parameter). The 18.104.22.168 address is that of the routing computer (the Gateway parameter).
route add 22.214.171.124 126.96.36.199
- To establish a route
so you can send a message to any user on a specific network, type:
The 188.8.131.52 address is that of the receiving network (the Destination parameter). The 184.108.40.206 address is that of the routing network (the Gateway parameter).
route add -net 220.127.116.11 18.104.22.168
- To establish a default
The value 0 or the default ph for the Destination parameter means that any packets sent to destinations not previously defined and not on a directly connected network go through the default gateway. The 22.214.171.124 address is that of the gateway chosen to be the default.
route add 0 126.96.36.199
- To clear the host gateway
- To add a route specifying weight and policy information, type:
route add 188.8.131.52 184.108.40.206 -weight 5 -policy 4
- To set the weight and policy attributes of a preexisting route,
route set 220.127.116.11 18.104.22.168 -weight 3 -policy