Disabling Ip Routing - HP ProCurve Secure 7000dl Series Basic Management And Configuration Manual

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You can also assign only WAN interfaces to a bridge, although you probably
would not use this application. In this case, the router would simply act as a
corridor between remote sites.
To assign an interface to a bridge group:
1. Move to the logical interface configuration mode context:
ProCurve(config)# int ppp 1
2. Assign the interface to the bridge group:
Syntax: bridge-group <group number>
For example:
ProCurve(config-ppp 1)# bridge-group 1
Only one interface in the bridge group should have an IP address. You should
remove all IP addresses from other interfaces before configuring the bridge.
Remember that every host in a bridged network must be on the same subnet.
If you want to bridge traffic between hosts on multiple subnets, you can
change the subnet mask so that all hosts are on the same subnet. You could
also enable a different bridge group on interfaces connecting to different
subnet. However, in the second case these subnets will not communicate
between each other unless a different device supports routing between the
subnets.

Disabling IP Routing

The router cannot both route and bridge traffic on the same subnet. You must
disable IP routing when the router acts as a remote bridge to join two sites
using addresses on the same network.
Enter the following command to disable IP routing:
ProCurve(config)# no ip routing
Rather than use the router as a bridge in this situation, you could use variable-
length subnetting to divide the network into two subnets. This solution works
when the sites include contiguous, evenly divided addresses. For example, in
Figure 10-3 an organization uses network 192.168.1.0 /24. Site A uses addresses
192.168.1.1 through 192.168.1.127 and Site B uses addresses 192.168.1.128
through 192.168.1.254. You could divide the subnet into subnets 192.168.1.0 /
25 and 192.168.1.128 /25.
Bridging—Transmitting Non-IP Traffic or Merging Two Networks
Configuring Bridging
10-7