Chapter6. Basic Configuration

Policy For Ping Tothe Telecommuting Module

Here,you specify how the Telecommuting Module should reply to ping packets to its IP addresses. You can choose
betweenNever reply to ping,Only reply to ping from the same interface and Reply to ping to all IP addresses.
Onlyreply to ping from the same interface means that the ping request should originate from a network which is
directlyconnected to the pinged interface of the Telecommuting Module or from a network to which there exists a
staticroute from the pinged interface, or the request will be ignored.
Pingis a way of finding out whether a computer is working. See appendix D, Definitions of Terms, for further
informationon ping.
Default Gateways
ADefaultGateway is the IP address of a router that is used to contact the outside world. This IP address is usually
thefirewall. Default Gateway must be an IP address from one of the Directly Connected Networks of the
TelecommutingModule’s interfaces. See appendix D, Definitions of Terms, for further description of
routers/gateways.
TheTelecommuting Module must have at least one default gateway to work. Youcan enter more than one default
gateway.The Telecommuting Module will use one of them until it stops responding, and then switch to the next one.

DNS name or IP address

Enterthe DNS name or IP address for the default gateway. If an interface will receive its IP address from a DHCP
server,the Telecommuting Module will get its default gateway from the server, and Default Gateway must be set to
"*".

IP address

Showsthe IP address of the DNS name or IP address you entered in the previous field.
Gateway Reference Hosts
Thegateway reference hosts are used by the Telecommuting Module to check if the gateways are alive. For each
referencehost, test ping packets are sent, using the different gateways.
Referencehosts are only needed when multiple default gateways are used.

DNS name or IP address

Enterthe DNS name or IP address for the reference host. The reference host must be located on the other side of the
defaultgateway.
43