User manual

Chapter 3 Provisioning
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3.2.6 DNS Proxy Configuration
CTC Union ET100R router module may provide DNS proxy service for your network. With this feature, there
is no need to install an extra DNS server in your network. The configuration is easy to perform, using only a few
commands.
3.2.6.1 Deployment procedures
Before enabling this function, please complete the ET100R functional configuration, then configure the DNS proxy
service in the ET100R router module.
1. Review the basic routing function deployment in the ET100R router module.
CLI commands:
(please refer to previous sections)
2. DNS proxy service configuration.
CLI commands: (must be in enable)
config ip dns primary 216.239.32.10 <<please use DNS server of your ISP
config ip dns secondary 216.239.32.11
config ip dnsproxy on
config save
3. Verifying the name resolution function.
CLI commands:
ping www.google.com
ping www.yahoo.com
3.2.7 DHCP Client Configuration
CTC Union's ET100R router module can act as a DHCP client, to automatically acquire an IP address from
your network's DHCP server. In this configuration, we also enable the RIP function for automatic router discovery. By
using DHCP client and RIP, the router becomes almost "plug-and-play", being able to dynamically change IP or routing
depending on the network configuration.
3.2.7.1 Deployment procedures
1. Configure for DHCP client and RIP
CLI commands: (must be in enable)
config interface eth1 off
config interface eth1 ip 0 addr mode dhcp
config interface hdlc1 off
config interface hdlc1 encap cisco
config interface hdlc1 ip 0 addr 10.0.0.1 netmask 255.255.255.252
config interface hdlc1 on
config interface hdlc1 ip 0 peer 10.0.0.2
config ip rip ifadd eth1
config ip rip ifadd hdlc1
config ip rip on
config ip rip version 1
config save
reboot