Siemens sl2_141 - Manual (Page 81)

Chapter 5:Connection Mode
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Internet-DNS Server
If Enable Automatic Assigned DNS checkbox is selected, this router will accept the first received
DNS assignment from one of the PPPoA, PPPoE or MER/DHCP enabled PVC(s) during the
connection establishment. If the checkbox is not selected, it is necessary for you to enter the primary
and optional secondary DNS server IP addresses. After type in the address, click Apply button to
save it and invoke it.
Enable Automatic Assigned DNS:
Check this box to enable this function, or
uncheck this box to disable it.
Primary DNS server:
Type in your primary DNS server.
Secondary DNS server:
Type in the secondary DNS server.
If you are satisfied the settings, click Apply.
Internet-IGMP Proxy
The Internet Group Management Protocol (IGMP) is an Internet protocol that provides a way for an
Internet computer to report its multicast group membership to adjacent routers.
The hosts interact with the system through the exchange of IGMP messages. When you want to
configure IGMP proxy, the system will interact with other router through the exchange of IGMP
messages. However, when acting as the proxy, the system performs the host portion of the IGMP
task as follows:
¾ When it is queried, the system will send group membership reports to the group.
¾ When one of the hosts joins a multicast address group to which none of other hosts belong, the
system will send unsolicited group membership reports to that group.
¾
When the last of hosts in a particular multicast group leaves the group, the system will send a
leave group membership report to the routers group.
Internet Connection:
This field displays the internet connection
that you currently use.
IGMP Proxy Enabled:
Check this box to enable this function or
uncheck this box to disable this function.
After finish the settings, click Apply.