Cisco Cisco Expressway 维护手册
Network settings
Configuring Ethernet settings
Use the
Ethernet
page (
System > Network interfaces > Ethernet
) to configure the speed of the
connections between the Expressway and the Ethernet networks to which it is connected. The speed and
duplex mode must be the same at both ends of the connection. If you installed the Advanced Networking
option, you can configure the speed and duplex mode for each Ethernet port.
duplex mode must be the same at both ends of the connection. If you installed the Advanced Networking
option, you can configure the speed and duplex mode for each Ethernet port.
The default Speed is Auto, which means that the Expressway and the connected switch will automatically
negotiate the speed and duplex mode.
negotiate the speed and duplex mode.
Note: We recommend Auto unless the connected switch is unable to auto-negotiate. A mismatch in
speed/duplex mode between the two ends of the connection will cause packet loss and could make the
system inaccessible.
speed/duplex mode between the two ends of the connection will cause packet loss and could make the
system inaccessible.
Configuring IP settings
The
IP
page (
System > Network interfaces > IP
) is used to configure the IP protocols and network interface
settings of the Expressway.
IP protocol configuration
You can configure whether the Expressway uses IPv4, IPv6 or Both protocols. The default is Both.
n
IPv4: it only takes calls between two endpoints communicating via IPv4. It communicates with other
systems via IPv4 only.
systems via IPv4 only.
n
IPv6: it only takes calls between two endpoints communicating via IPv6. It communicates with other
systems via IPv6 only.
systems via IPv6 only.
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Both: it takes calls using either protocol. If a call is between an IPv4-only and an IPv6-only endpoint, the
Expressway acts as an IPv4 to IPv6 gateway. It communicates with other systems via either protocol.
Expressway acts as an IPv4 to IPv6 gateway. It communicates with other systems via either protocol.
All IPv6 addresses configured on the Expressway are treated as having a /64 network prefix length.
IPv4 to IPv6 gatewaying (interworking)
The Expressway can act as a gateway for calls between IPv4 and IPv6 devices. To enable this feature,
select an IP protocol of Both.
select an IP protocol of Both.
IP gateways
You can set the default IPv4 gateway and IPv6 gateway used by the Expressway. These are the gateways
to which IP requests are sent for IP addresses that do not fall within the Expressway’s local subnet.
to which IP requests are sent for IP addresses that do not fall within the Expressway’s local subnet.
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The default IPv4 gateway is 127.0.0.1, which should be changed during the commissioning process.
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The IPv6 gateway, if entered, must be a static global IPv6 address. It cannot be a link-local or a stateless
auto-configuration (SLAAC) IPv6 address.
auto-configuration (SLAAC) IPv6 address.
Cisco Expressway Administrator Guide (X8.5)
Page 23 of 394
Network and system settings
Network settings