Chapter 23: IPv6
STANDARD Revision 1.0 C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved. 731
MDF Capability= GMAC Promiscuous(2) MDF Mode= MDF Enabled(1)
u/d SFID SID State Sched Tmin Tmax DFrms DBytes CRC HCS Slot/Ports
uB 11 6 Activ BE 0 0 0 0 0 0 1/0.0,1.0,2.0,3.0
dB 12 *6 Activ 0 0 0 0 14/0,1,2,3
L2VPN per CM: (Disabled)
Current CPE=1, IPv4 Addr=1, IPv6 Addr=1 Max CPE=16, IPv4 Addr=8, IPv6 Addr=16
CPE 0000.0000.0002 Filter-Group:Up=2 Down=2 Proto-Throttle=Normal IPv6=2001:cada:c427:c001::64
+CPE 0000.0000.0002 IPv4=10.127.0.100
Proxy Duplicate Address Detection
When a CPE or client requests an address duplication check using a Neighbor Solicitation (NS) message, the C4/c CMTS
checks the Neighbor Discovery (ND) cache to see if the target address is being used. The C4/c CMTS is called a proxy in this
case because it responds for the client that already has the requested address.
If the IPv6 address is being used, then the C4/c CMTS sends a Neighbor Advertisement (NA) message on behalf of the client
that already has this address. The requesting client should honor this DAD message by acquiring a different address. If the
target address in the NS message is not in use, then the C4/c CMTS takes no action. This feature applies to cable interfaces
only. It is always on and has no configuration settings.
Use one of the following commands to set the number of neighbor solicitation messages sent to detect duplicate
addresses:
configure interface gigabitethernet <slot/port> ipv6 nd dad attempts <0-600>
configure interface tengigabitethernet <slot/port> ipv6 nd dad attempts <0-600>
DHCPv6 PDRI and Bulk Lease Query
DHCPv6 Prefix Delegation with Route Injection (PDRI) is a feature that allows a customer premise equipment (CPE) router
to obtain an IPv6 prefix from a DHCPv6 server and allows the C4/c CMTS to learn the prefix as a valid route. The CPE
router then assigns IPv6 addresses from within this prefix to its directly connected CPEs.
To Next Page
Loading...