3Com REMOTE ACCESS SYSTEM 1500, Management Manual

Page: 263 / 300

Case Studies
261
Static NAT is performed for 2 hosts on the private network. A dynamic
public IP address translation pool is defined for other machines on the
private network to be able to access the public network.
1 Set basic system settings.
set system name RASCNTRL
set command prompt RASCNTRL
set system transmit_authentication_name RASCNTRL
2 Set IP network settings.
add ip network ip address 192.168.111.254/C enable no
set ip network ip routing_protocol ripv2
enable ip network ip
3 Set authentication.
set ppp receive_authentication either
4 Add a modem group named 78.
add modem_group 78 interface rm0/slot:2/mod:[3-4]
5 Add and configure a user named “nat_user.”
add user nat_user password ras type network,dial_out
enable no
set user nat_user modem_group 78 phone_number 3067
set network user nat_user ppp compression_algorithm ascend
set network user nat_user transmit_authentication main
send_password ras
set network user nat_user ipx disable appletalk disable
bridging disable
set network user nat_user nat_option nat
set network user nat_user ip_routing listen rip ripv2
set network user nat_user default_route_option enable
set network user nat_user address_selection negotiate
set dial_out user nat_user local_ip_address 255.255.255.255
set user nat_user idle_timeout 120
set dial_out user nat_user site type ondemand