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Juniper SRX100 Hardware Guide

Juniper SRX100
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Table 20: Services Gateway Basic Connectivity Settings Details (continued)
SettingsDescriptionsElements
NOTE: The backup device must be located on the
same subnet as the primary device.
To configure a backup device, you must use the CLI
or J-Web configuration editor. You cannot configure
a backup device with J-Web configuration editor.
NOTE: This feature is currently not supported in this
release.
You can specify a backup device to take over when
the routing protocol process of the services gateway
is not running:
When the services gateway is starting.
When its routing protocol process has failed.
Packets arriving at a services gateway in this
situation are routed to the backup device. When
the routing protocol process starts up again, the
address of the backup device is removed from
the routing and forwarding tables of the services
gateway.
Backup
device
Setting a loopback address ensures that the device
can receive packets addressed to the loopback address
as long as the device is reachable though any entry
(ingress) interface. In addition, applications such as
NTP, RADIUS, and TACACS+ can use the loopback
address as the source address for outgoing packets.
If you use the J-Web Quick Configuration Set Up page,
you can either set a loopback address of your choice
or have the loopback address automatically set to
127.0.0.1 when you click Apply or OK to commit the
configuration.
The loopback address is the IP address of the services
gateway. The loopback address ensures that the
device provides an IP address to management
applications. Because it must always be available to
hosts attempting to route packets to the device, the
loopback address resides on an interface that is
always active, known as the loopback interface (lo0.0).
Loopback
address
Related Topics SRX100 Services Gateway Autoinstallation Overview on page 53
SRX100 Services Gateway Basic Connectivity Overview on page 55
Built-In Ethernet Ports for the SRX100 Services Gateway on page 58
Management Access for the SRX100 Services Gateway on page 59
Built-In Ethernet Ports for the SRX100 Services Gateway
The built-in Fast Ethernet ports, fe-0/0/0 through fe-0/0/7, on the front panel of the
SRX100 Services Gateway are the ports through which you perform initial device
setup. The examples in this section use the fe-0/0/0 port as the management
interface, but you can use any built-in Ethernet port for management. After the initial
configuration is complete, you can attach the built-in Ethernet port that you are using
for management purposes to the management network.
Before initial configuration, when the factory default configuration is active, the
device attempts to perform autoinstallation by obtaining a device configuration
through all its connected interfaces, including fe-0/0/0. The services gateway acts
as a DHCP client out of the built-in Ethernet ports.
58 Built-In Ethernet Ports for the SRX100 Services Gateway
SRX100 Services Gateway Hardware Guide

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Juniper SRX100 Specifications

General IconGeneral
Routing protocolsBGP, IS-IS, MPLS, OSPF
Switching protocolsVLAN 802.1Q, 802.3ad/LACP, STP
Supported network protocolsIPv4, IPv6, CLNS
Firewall securityYes
Security algorithms3DES, DES
Authentication methodRADIUS, RSA SecureID, LDAP
VPN supportIPsec VPN
Data transfer rate0.1 Gbit/s
Input voltage100 - 240 V
Input frequency50/60 Hz
Heat dissipation35 BTU/h
Power requirements100-240, 50/60
Power over Ethernet (PoE)No
Power consumption (typical)30 W
SafetyUL 60950-1, CSA 60950-1, AS / NZS 60950-1, AS / NZS 60950-1, CB Scheme, EN 60950-1
CertificationFCC Class B ICES class B AS / NZS CISPR22 Class B AS / NZS CISPR22 Class B VCCI Class B EN 55022 Class B, EN 300386
Mounting typeRack mounting
Internal memory1024 MB
Storage temperature (T-T)-20 - 70 °C
Operating temperature (T-T)0 - 40 °C
Weight and Dimensions IconWeight and Dimensions
Weight1100 g
Dimensions (WxDxH)216 x 147 x 36 mm

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