3Com MSR 50 Series Configuration Manual page 627

Configuration procedure
# Assign a primary IP address and a secondary IP address to Ethernet1/0.
<Router> system-view
[Router] interface ethernet 1/0
[Router-Ethernet1/0] ip address 172.16.1.1 255.255.255.0
[Router-Ethernet1/0] ip address 172.16.2.1 255.255.255.0 sub
# Set the gateway address to 172.16.1.1 on the PCs attached to 172.16.1.0/24,
and to 172.16.2.1 on the PCs attached to 172.16.2.0/24.
# Use the ping command to verify the connectivity between the router and a host
on the subnet 172.16.1.0/24.
<Router> ping 172.16.1.2
PING 172.16.1.2: 56
Reply from 172.16.1.2: bytes=56 Sequence=1 ttl=255 time=25 ms
Reply from 172.16.1.2: bytes=56 Sequence=2 ttl=255 time=27 ms
Reply from 172.16.1.2: bytes=56 Sequence=3 ttl=255 time=26 ms
Reply from 172.16.1.2: bytes=56 Sequence=4 ttl=255 time=26 ms
Reply from 172.16.1.2: bytes=56 Sequence=5 ttl=255 time=26 ms
--- 172.16.1.2 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 25/26/27 ms
The information shown above indicates the router can communicate with the host
on the subnet 172.16.1.0/24.
# Use the ping command to verify the connectivity between the router and a host
on the subnet 172.16.2.0/24.
<Router> ping 172.16.2.2
PING 172.16.2.2: 56
Reply from 172.16.2.2: bytes=56 Sequence=1 ttl=255 time=25 ms
Reply from 172.16.2.2: bytes=56 Sequence=2 ttl=255 time=26 ms
Reply from 172.16.2.2: bytes=56 Sequence=3 ttl=255 time=26 ms
Reply from 172.16.2.2: bytes=56 Sequence=4 ttl=255 time=26 ms
Reply from 172.16.2.2: bytes=56 Sequence=5 ttl=255 time=26 ms
--- 172.16.2.2 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 25/25/26 ms
The information shown above indicates the router can communicate with the
hosts on the subnet 172.16.2.0/24.
# Use the ping command to verify the connectivity between the hosts on the
subnet 172.16.1.0/24 and hosts on subnet 172.16.2.0/24. Ping Host B on Host A
to verify that the ping operation is successful.
data bytes, press CTRL_C to break
data bytes, press CTRL_C to break
Configuring IP Addresses 627