Cisco WS-C3020 - Page 785

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Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide
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Chapter 35 Configuring IPv6 Host Functions
Understanding IPv6
• Opens User Datagram Protocol (UDP) SNMP socket with default settings
• Provides a new transport mechanism called, SR_IPV6_TRANSPORT
• Sends SNMP notifications over IPv6 transport
• Supports SNMP-named access lists for IPv6 transport
• Supports SNMP proxy forwarding using IPv6 transport
• Verifies SNMP Manger feature works with IPv6 transport
For information on SNMP over IPv6, see:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/ipv6_c/sa_mgev6.htm#wp1
082849
For information on configuring an interface to support the IPv4 and IPv6 protocol stacks, see:
http://www.cisco.com/en/US/products/sw/iosswrel/ps5187/products_configuration_guide_chapter0918
6a00806f3a6a.html#wp1060846
Syslog Over IPv6
To support both IPv4 and IPv6, management of IPv6 networks requires both IPv6 and IPv4 transports.
Syslog over IPv6 is responsible for transporting Cisco IOS-generated system error messages to
configured servers. Syslog configures the connection to the logging host by using a Cisco IOS socket
interface and starts a socket connection on the UDP or TCP transport by using Cisco IOS sockets.
Syslog supports common address data types that support both IPv4 and IPv6 transports. The syslog
supports socket structures and APIs based on the user’s CLI configurations. Socket structures and APIs
support both IPv4 and IPv6 sockets.
The user specifies an IPv4-based logging host (syslog server) by using a host IP address in IPv4 format
(i.e. 198.133.219.25). The user also specifies the TCP or UDP transport by using the IPv6 address (for
example, ABCD:088A:EF75:1774::FFFF) of a logging host (syslog server) that supports IPv6 transport.
For syslog, IPv4 requires a 32-bit. IPv6 requires a 128-bit address.
Commands
These commands were enhanced for SNMP over IPV6. See the Cisco IOS Command Reference Guide
for more information on these commands:
• snmp-server host
• snmp-server community
• snmp-server engineID remote
• snmp-server group
• snmp-server user
• snmp mib target list