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Copyright © 2011, Juniper Networks, Inc.
New Features in Junos OS Release 10.4 for SRX Series Services Gateways and J Series Services Routers
ICMP ALG drops ICMP traffic when translation from IPv4 and IPv6 is not possible. Note
that ICMP ALG is always enabled and cannot be disabled by means of the
command-line interface (CLI).
[Junos OS Security Configuration Guide]
Interfaces in active/active chassis cluster—This feature is supported on all SRX Series
and J Series devices.
A logical interface can be configured with an IPv4 address, IPv6 address, or both in
active/active chassis cluster configurations in addition to the existing support of
active/passive chassis cluster configurations.
To configure an IPv6 address for a logical interface, use the
[
edit interfaces interface-name unit logical-unit family
Interfaces Configuration Guide for Security Devices]
Multicast flow—This feature is supported on all SRX Series and J Series devices.
The IPv6 multicast flow adds or enhances the following features:
IPv6 transit multicast, which includes the following packet functions:
Normal packet handling
Fragment handling
Packet reordering
Protocol-Independent Multicast version 6 (PIMv6) flow handling
Other multicast routing protocols such as Multicast Listener Discover (MLD)
The structure and processing of IPv6 multicast data session are the same as that of
IPv4. Each data session has the following:
One template session
Several sessions
The reverse path forwarding (RPF) check behavior for IPv6 is the same as that of IPv4.
Incoming multicast data is accepted only if RPF check succeeds. In IPv6 multicast
flow, incoming Multicast Listener Discovery (MLD) protocol packets are accepted only
if MLD or PIM is enabled in the security zone for the incoming interface. Sessions for
multicast protocol packets have a default timeout value of 300 seconds. This value
cannot be configured. The null register packet is sent to the rendezvous point.
In IPv6 multicast flow, a mulitcast router has the following three roles:
Designated router
Intermediate router
Rendezvous point
[Junos OS Class of Service Configuration Guide]
NAT—This feature is supported on all SRX Series and J Series devices.
statement at the
inet6
] hierarchy level. [Junos OS
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