3Com 3CRWDR101A-75 Network Router User Manual


 
Advanced 85
the MTU size on the WAN interface, the client sends an Internet
Control Message Protocol (ICMP) error to the external server to
request that the server negotiate the TCP Maximum Segment Size
(MSS). However, this message may be blocked by some firewalls.
When this occurs, the packet is dropped. To allow the message to go
through the firewall, enable MSS Clamping. MSS clamping will make
Internet Connection Sharing set the MSS value low enough to match
the external interface.
Remote Administration — This feature allows you to make changes to
your Router’s settings from anywhere on the Internet. Four options are
available:
If you do not want to use this feature, select Disable Remote
Administration.
Select Enable administration from a single Internet Host, and enter
the IP address, to allow only one computer to use the remote
administration. This is more secure, as only the specified IP address
will be able to manage the Router.
Select Enable administration from a whole Subnet Internet Host,
and enter the IP address and subnet mask, to allow PCs from that
specific subnet group to use the remote administration.
Select Enable administration from any Internet Host, this allows
any computer to access the Router remotely.
Before you enable this function, ensure that you have set the
Administration Password.