Responding To A Ping On The Internet (Wan) Port; Setting The Mtu Size; Disabling Igmp Proxying; Disabling Sip Alg - NETGEAR WNR612v2 - Wireless-N 150 Router User Manual

To assign a computer or server to be a default DMZ server:
Select the Default DMZ Server check box.
1.
In the Default DMZ Server fields, enter the IP address for that computer or server.
2.
Click Apply.
3.

Responding to a Ping on the Internet (WAN) Port

If you want the router to respond to a ping from the Internet, select the Respond to Ping on
Internet Port check box. This should be used only as a diagnostic tool, since it allows your
router to be discovered by Internet scanners. Do not select this check box unless you have a
specific reason to do so, such as when troubleshooting your connection.

Setting the MTU Size

The normal MTU value for most Ethernet networks is 1500 bytes, 1492 bytes for PPPoE
connections, or 1450 for PPTP connections. For some ISPs, you might need to reduce the
MTU size, but this is rarely required and should not be done unless you are sure it is
necessary for your ISP connection.
To change the MTU size:
In the MTU Size field, enter a new size between 64 and 1500.
1.
Click Apply to save the new configuration.
2.

Disabling IGMP Proxying

The IGMP Proxying function lets a LAN PC receive the multicast traffic it is interested in from
the Internet. If you do not need this function, you can click the Disable IGMP Proxying check
box to disable this function.

Disabling SIP ALG

Some SIP applications have their own way to work around the NAT firewall issue, and the
SIP ALG would conflict with those solutions. In most cases, you do not have to disable the
SIP ALG. However, if your SIP applications cannot work with the router, you can disable the
SIP ALG and try the applications again. To disable SIP ALG, click the Disable SIP ALG check
box.

Enabling IPv6 Pass-Through

IPv6 pass-through is disabled by default. If you have IPv6-capable devices in your
configuration and would like to use those devices instead of IPv4, you can click the Enable
IPv6 Pass-Through check box to enable the IPv6 Pass-Through function.
40 | Chapter 4: Customizing Your Network
Wireless-N 150 Router WNR612v2 User Manual