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Cisco ASR 9000 Series Aggregation Services Router IP Addresses and Services Configuration Guide, Release 5.1.x

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Updated:: July 16, 2014

Chapter: New and Changed Feature Information in Cisco IOS XR Release 5.1.x

New and Changed IP Addresses and Services Features

New and Changed Feature Information in Cisco IOS XR Release 5.1.x

This table summarizes the new and changed feature information for the Cisco ASR 9000 Series Aggregation Services Router IP Addresses and Services Configuration Guide, and tells you where they are documented.

New and Changed IP Addresses and Services Features

New and Changed IP Addresses and Services Features

Table 1 New and Changed Features
Feature	Description	Introduced/Changed in Release	Where Documented
HSRP for IPv6	This feature was introduced.	Release 4.3.0	Implementing HSRP chapter Enabling HSRP Configuring the HSRP Activation Delay Enabling HSRP Support for ICMP Redirect Messages Enabling HSRP for IPv6
ACL Counters Using SNMP Query	This feature was introduced.	Release 5.1.1	Implementing Access Lists and Prefix Lists chapter ACL Counters Using SNMP Configuring ACL Counters for SNMP Query Configuring ACL Counters for SNMP Query: Example
Local Proxy ARP	This feature was introduced.	Release 4.0.0	Configuring ARP chapter ARP and Proxy ARP Enabling Local Proxy ARP
512 Tracked Objects for HSRP	This feature was introduced.	Release 5.1.1	Implementing HSRP chapter Enhanced Object Tracking for HSRP and IP Static
Secure ARP	This feature was introduced.	Release 5.1.1	Implementing the Dynamic Host Configuration Protocol chapter Secure ARP Enabling Secure ARP
Secure Copy Protocol	This feature was introduced.	Release 5.1.1	Implementing Host Services and Applications chapter SCP Transferring Files Using SCP
Fallback VRF	This feature was introduced.	Release 5.1.1	Implementing Network Stack IPv4 and IPv6 chapter Fallback VRF Configuring Fallback VRF Configuring Fallback VRF:Example Refer Network Stack IPv4 and IPv6 Commandschapter in Cisco ASR 9000 Series Aggregation Services Router IP Addresses and Services Command Reference for information on the commands used for configuring fallback VRF feature.
3-Tuple Hash Algorithm	This feature was introduced.	Release 5.1.1	Implementing Cisco Express Forwarding chapter Per-Flow Load Balancing Configuring 3-Tuple Hash Algorithm Configuring Per-Flow Load Balancing: Example Refer Cisco Express Forwarding Commandschapter in Cisco ASR 9000 Series Aggregation Services Router IP Addresses and Services Command Reference for information on the commands used for configuring 3-tuple hash algorithm feature.
DHCP Session MAC Throttle	This feature was introduced.	Release 5.1.1	Implementing the Dynamic Host Configuration Protocol chapter DHCP Session MAC Throttle Refer DHCP Commandschapter in Cisco ASR 9000 Series Aggregation Services Router IP Addresses and Services Command Reference for information on the commands used for configuring DHCP session MAC throttle feature.
VRRP 256 Virtual Routers Support	This feature was introduced.	Release 5.1	Implementing VRRP chapter Multiple Virtual Router Support Benefits of VRRP
IPV6 ABF Object Tracking	This feature was introduced.	Release 5.1	Implementing Access Lists and Prefix Lists chapter Configuring Pure ACL-Based Forwarding for IPv6 ACL Refer Access List Commandschapter in Cisco ASR 9000 Series Aggregation Services Router IP Addresses and Services Command Reference for information on the commands used for configuring IPV6 ABF Object Tracking.
DHCPV4 Server Support	This feature was introduced.	Release 5.1	Implementing the Dynamic Host Configuration Protocol chapter Configuring DHCPv4 Server Profile Configuring Multiple Classes with a Pool Configuring a server profile DAPS with class match option Configuring Server Profile without daps pool match option Configuring an address pool for each ISP on DAPS Refer DHCP Commandschapter in Cisco ASR 9000 Series Aggregation Services Router IP Addresses and Services Command Reference for information on the commands used for configuring DHCPV4 Server Support .
IPv6 - ND enhancement	This feature was introduced.	Release 5.1	Refer Access List Commandschapter in Cisco ASR 9000 Series Aggregation Services Router IP Addresses and Services Command Reference for information on the commands used for configuring IPv6 - ND enhancement.

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