Veja grátis o arquivo CCNA Security Portable Command Guide next generation (RIPng), Open Shortest Path First Version 3 (OSPFv3) Protocol. CCNA Security () Portable Command Guide has 16 ratings and 0 reviews. Published May 25th by Cisco Press (first published May 8th ). CCNA Security () Portable Command Guide-Pearson Education-Bob VachonEDN “About this title” may belong to another edition of this title.
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Other mecha- nisms that allow IPv4 nodes to communicate with IPv6 nodes are available.
All these mechanisms are applied to different situations. The three most common techniques to transition from IPv4 to IPv6 are as follows: As a result, the node and its corresponding routers have two protocol stacks.
CCNA Security () Portable Command Guide
This method requires dual-stack routers. Dynamic 6to4 tunneling is a method that automatically establishes the pogtable of IPv6 islands through an IPv4 network. Teredo tunneling is an IPv6 transition technology that provides host-to-host automatic tunneling instead of gateway tunneling.
The job of the translator is to translate IPv6 packets into IPv4 packets and vice versa. You must configure the ipv6 unicast-routing before an IPv6-capable routing protocol or an IPv6 static route will work.
CCNA Security () Portable Command Guide by Bob Vachon
Neighbor routers are identified by their next-hop link-local addresses and therefore do not use global unicast addresses. Many similarities exist between them, and therefore they share similar threats, including the following: Threats that are unique to IPv6 include the following: IPv6 is a relatively new protocol and therefore is subject to bugs in the stack.
In some cases, IPv6 is slightly more secure, and in other cases Cfna is slightly less secure.
Security techniques and devices do exist to enforce a security policy for the IPv6 traffic and should be used. The lack of IPv6 training for network and security staff is probably the biggest threat for operation.
The term bogon addresses refers to traffic with a source IP address from a reserved IP address space, and it should be filtered by an Internet service pro- vider.
MAC address table attack Filter multicast packets at your perimeter based on their scope. Drop packets with unknown extension headers Drop RH0 packets and unknown extension headers at the perimeter and throughout the interior of the network. Do not allow tunnels through perimeter unless required Terminate tunnels at the edge and do not permit host-to-host securtiy.
Future Security Enhancements Consider current and future security enhancements: