Product guide
IP Routing Features
Configuring Static IP Routes
Syntax: [no] ip route < dest-ip-addr >/< mask-bits >
< next-hop-ip-addr | reject | blackhole | vlan > [ distance ]
dest-ip-addr >/< mask-bits: The route destination and network mask length for
the destination IP address. Alternatively, you can enter the mask itself.
For example, you can enter either 10.0.0.0/24 or 10.0.0.0 255.255.255.0 for a
route destination of 10.0.0.0 255.255.255.0.
next-hop-ip-addr : This IP address is the gateway for reaching the destination.
The next-hop IP address is not required to be directly reachable on a local
subnet. (I f the next-hop IP address is not directly reachable, the route
will be added to the routing table as soon as a route to this address is
learned.)
reject: Specifies a null route where IP traffic for the specified destination is
discardedandan I CMPerrornotification is r eturned t o t he s ender.
blackhole: Specifies a null route where IP traffic for the specified destination
is discarded and no ICMP error notification is returned to the sender.
vlan: Specifies the destination vlan.
distance: Specifies the administrative distance to associate with a static route.
If not specified, this value is set to a default of 1. For more on this topic,
refer to “Administrative Distance” on page 3-6. (Range: 1 - 255)
The no form of the command deletes the specified route for the specified
destination next-hop pair.
The following example configures two static routes for traffic delivery and
identifies two other null routes for which traffic should be discarded instead
of forwarded.
ProCurve(config)# ip route 10.10.40.0/24 10.10.10.1
ProCurve(config)# ip route 10.10.50.128/27 10.10.10.1
ProCurve(config)# ip route 10.10.20.177/32 reject
ProCurve(config)# ip route 10.10.30.0/24 blackhole
Configures static r outes to
two different network
destinations using the
same next-hop router IP
address.
Configures a null route to
drop traffic for the device
at 10.50.10.177 and return
an ICMP notification to the
sender.
Configures a null route to
drop traffic for the
10.50.10.0 network without
any ICMP notification to
the sender.
Figure 3-1. Examples of Configuring Static Routes
3-19