Tags » Ipv6

Enabling IPv6 on existing VPCs and subnets

AWS announced in December 2016 IPv6 Support for EC2 Instances in Virtual Private Clouds  in the US East (Ohio) Region only. At the end of January they finally extended the support in every AWS region, as for the post… 299 more words

IPv6 Address Shortener and Expander Python Code

I’ve begun my introduction to the world of Python coding a couple of weeks ago. This post is about an IPv6 address shortener and expander code that I’ve jumped into to learn the basic knobs in Python. 1,357 more words


Oscars: Chris Evans, Scarlett Johansson, and more to present

Chris Evans, Scarlett Johansson, and Samuel L. Jackson will be among the celebs taking the stage as presenters for the 89th Oscars ceremony later this month. 190 more words


IPv4 vs IPv6

IP (short for Internet Protocol) specifies the techincal format of packets and the addressing scheme for computers to communicate over a network. Currently there are two versions of Internet Protocol IPv4 and IPv6. 68 more words

IPV6 Source Guard Key points

Key points

  • Control plane
  • Enable policy
  • Deny global-autoconf – Denies data traffic from autoconfigured global addressess
  • Prevent stateless autoconfiguration

IPV6 DHCPv6 Guard


Key points

-Define Northbound and Southbound traffic.

-Drop DHCP traffic from Southbound

configure terminal
ipv6 access-list acl1
 permit host FE80::A8BB:CCFF:FE01:F700 any
ipv6 prefix-list abc permit 2001:0DB8::/64 le 128	
ipv6 dhcp guard policy pol1
 device-role server
 match server access-list acl1
 match reply prefix-list abc
 preference min 0
 preference max 255
interface GigabitEthernet 0/2/0
 ipv6 dhcp guard attach-policy pol1 vlan add 1
 vlan 1
  ipv6 dhcp guard attach-policy pol1
show ipv6 dhcp guard policy pol1