TOPEX Bytton (HSPA+ / LTE)
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Static Route Display
Figure 5-112: Routes – Static Routes Display.
The routes are shown top downwards from the most specific to the least specific.
Destination
- the destination network or host system. Declaring a default route means adding a route with
0.0.0.0 as its destination.
Gateway
- the access gateway the respective routing entry points to. If this field has only zeroes (0.0.0.0)
or an asterisk (*), this means no gateway is used, the destination network is connected directly to the
computer.
Genmask
- the bit mask applied to the destination. It shows the “generality” of the route.
Flags
- indicator flags that describe some characteristics of the route. Such flags are:
U
- the route is active and operating, the interface to be used is up;
G
- the route uses an external gateway ( the network interfaces of the system supply routes to the
networks which are directly connected, all other routes use external gateways. Thus, the networks which
are directly connected don’t have the G flag, but it is activated for all other routes ).
H
– it is a route towards a single host instead of a network.
D
- the table entry has been generated dynamically, either by a routing protocol or by a an ICMP redirect
message (see section 3.5).
M
– this route was modified by a dynamic routing protocol;
R
- the route vas re-activated following update by dynamic routing protocol. Routes may be configured as
passive or static even when a protocol for dynamic routing is used.
Other fields refer to the
Metric
(routing cost), the number of references to this route, etc,
Finally,
Iface
is the name of the network interface used for this route.
For Ethernet interfaces the names will be
lan0
, lan1, lan2 and so on, for the PPP interfaces the names will
be
ppp1
,
ppp2
, for WAN you have
wan
and
wan0
, for the GRE tunnels,
gret1
,
gret2
and so on, while
the default bridge is
br0
and the VLAN is
br0.2
.
Static Route Definition
Such a static route is a possible path from a device to its destination or to another host.
You must insert predefined rules of routing for BYTTON in case you append one or several network
equipments such as routers behind the Bytton LTE device, to share the same connection to the mobile
Internet.
This way the Bytton router will be able to know where it may deliver the data packets coming from the
Internet with different destination IP addresses.
