Cisco ipv6 first hop security fhs reduce downtime and cost of information theft. Cisco public 1 ipv6 security threats and mitigations brksec2003. Praise for ipv6 essentials, third edition silvia easily distills complexity out of ipv6 to make it accessible to everyone. Cisco should be your valued business partner to help you securely deploy ipv6 to allow your. Ipv6 security ituapnicmict ipv6 security workshop may 2016. Basic ipv6 protocol security basic header, extension headers, addressing ipv6 associated protocols security icmpv6, ndp, mld, dns, dhcpv6 internetwide. To understand the scale of their undertaking, their implementation case study stated this. Both ciscos internal and external plans place a large emphasis on endtoend security and testing. Configuring ipv6 interface addressing free ccna workbook. Cisco ios xr software ipv6 malformed packet denial of. The transition to ipv6 affects the entire enterprise network, which connects 450 cisco offices in 90 countries. Ipv6 fundamentals, second edition provides a thorough yet easytounderstand introduction to the new knowledge and skills network professionals and students need to deploy and manage ipv6 networks. Cisco nexus 9000 series nxos security configuration guide, release 7.
The cisco security portal provides actionable intelligence for security threats and. Crfs was ciscospecific and helped readers squeeze all the networklevel security features they could from their routers. Nevertheless, security of ipv6 protocol and ipv6 networks can still be improved, but this fact should not be an obstacle to its acceptance,usage and further development. The vulnerability is triggered when an affected device processes a malformed ipv6 packet. Ipv6 security protection measures for the next internet protocol as the worlds networks migrate to the ipv6 protocol, networking professionals need a clearer understanding of the security risks, threats, and challenges this transition presents. This exam tests a candidates knowledge and skills related to network fundamentals, network access, ip connectivity, ip services, security fundamentals, and automation and programmability. It provides two security headers which can be used separately or together. This guide may contain information that is not specific to your particular platform or is not supported in your software release. Ipv6 security offers guidance for avoiding security problems prior to widespread ipv6 deployment. Cisco ios and ios xe software ipv6 first hop security. Ipv6 mandates the implementation of ipsec some organisations believe that ipsec should be used to secure all flows 15 security expert, w. The topics of forensics, intrusion detection and prevention, security information management, and con. Cisco ios and ios xe software ipv6 snooping secure network. Ipv6 and ipv4 usually operate completely independently over the same layer 2 infrastructure, so additional and.
Ipv6 has been available for years, and 2016 marked the year when ipv6 first reached. Information theft can result from router impersonation maninthemiddle attacks, address theft, address spoofing, and remote address resolution cache exhaustion denial of service attacks. Commonalities between ipv4 security and ipv6 security are discussed. November29,2012 americas headquarters cisco systems, inc. The cisco software feature documentation in this configuration guide often includes information about features that are shared across software releases and platforms. He has worked primarily on policybased admission, incident. Exploitation of this vulnerability can lead to information leakage on affected ios and ios xr devices, and may also result in a crash of the affected ios device. Configuration complexity key management therefore, ipv6 will be deployed largely without cryptographic protections of any kind security in ipv6 is a much broader topic than just ipsec. Chapter 1 introduction to ipv6 security 3 chapter 2 ipv6 protocol security vulnerabilities 15 chapter 3 ipv6 internet security 73 chapter 4 ipv6.
As you adopt technology solutions that address todays business transitions and migrate your network to scale ipv6, we can help you prioritize critical areas of your business and network, while proactively budgeting time, money, and resources. Cisco has confirmed the vulnerability in a security advisory and released software updates. Ipsec defines cryptographybased security for both ipv4 and ipv6 in rfc 4301. Motivations discussions around ipv6 security have centered on ipsec though ipsec is mandatory in ipv6, the same issues with ipsec deployment remain from ipv4.
A vulnerability in the parsing of malformed internet protocol version 6 ipv6 packets in cisco ios xr software for asr 9000 series aggregation services routers could allow an unauthenticated, remote attacker to cause a lockup and eventual reload of a network processor np chip and a line card processing traffic. Ccna security 640554 official cert guide cisco press. Cisco security experts omar santos and john stuppi share preparation hints and testtaking tips, helping you identify areas of weakness and improve. Ipv6 firsthop security configuration guide, cisco ios xe release 3s first published. Only tridentbased line cards on cisco asr 9000 series aggregation services. Securing ipv6 in the cisco space troopers itsecurity. Ipv4ipv6 security and threat comparisons sciencedirect. Ipv6 security reminded me of cisco router firewall security crfs by richard deal, which i also liked a lot.
Ipv6 security impact many security issues in ipv6 remain the same as in ipv4, but v6 also has new features that affect system and network security, as well as potentially impacting on policies and procedures. To provide security and scalability, the ipv6 snooping feature bundles several layer 2 ipv6 firsthop security features, including ipv6 neighbor discovery nd inspection, ipv6 device tracking, ipv6 address glean, and ipv6 binding table recovery. Ipv6 security protection measures for the next internet protocol as. Ccna security 210260 official cert guide ccna security 210260 official cert guide is a bestofbreed cisco exam study guide that focuses specifically on the objectives for the ccna security implementing cisco network security iins 210260 exam. Security cisco ios ipv6 acl cisco ios firewall ipv6 support standardextended ipv6 acl ios firewall since march 200412. To support future business continuity, growth, and innovation, organizations must transition to ipv6, the next generation protocol for defining how computers communicate over networks. The ah header was designed to ensure authenticity and integrity of the. Cisco has the broadest support for ipv6, and ipv6 security in the industry. The ipv6 object groups for acls feature lets you classify users, devices, or protocols into groups and apply them to access control lists acls to create access control policies for those groups. Ipv6 firsthop security configuration guide, cisco ios xe. Ipv6 security threats and mitigations psu wikispaces. Ipv6 is mostly ipv4 with larger addresses and there is no significant difference between ipv4 and ipv6 with respect to security. Another ipv6 security myth is that, thanks to the huge address space, an attacker cannot find targets by generating a random ipv6 address. Author eric vyncke explains why the protocol is becoming a reality in this ipv6 implementation security video.
This session presents ipv6 security as contrasted with ipv4 from a threat and mitigation. Cisco has released software updates that address this. In some cases linklocal addresses ipv6 is slightly more secure, and in other cases difficulties to parse the extension headers ipv6 is slightly less secure. A vulnerability in the implementation of the ip version 6 ipv6 protocol stack in cisco ios software and cisco ios xe software could allow an unauthenticated, remote attacker to cause io memory depletion on an affected device that has ipv6 enabled. Latif ladid president, international ipv6 forum the best vendorindependent ipv6 book available. Threats on the layer2 link p ipv4 has several threats against layer2. Listen to this podcast interview with book author scott hogg on ipv6 security issues.
If youve read lab 121 the basics of internet protocol version 6 ipv6 then youre probably tired of reading about all the concepts, history and such and ready to get into the configuration configuring an ipv6 address is just as easy as configuring an ipv4 address on a cisco interface. Cisco ios software ipv6 denial of service vulnerability. Its successor, ipv6, has the features and solutions the modern internet requires. He is actively involved in ipv6, serving as the cochair of the california ipv6 task force, and has been blogging and speaking at conferences worldwide about ipv6 since 2005. Cisco nexus 9000 series nxos security configuration guide. The rise of ipv6 could give you some severe security headaches even if you have no current plans to implement the new networking protocol. Cisco ios and cisco ios xr contain a vulnerability when processing specially crafted ipv6 packets with a type 0 routing header present. Its available for free via the university librarys safari subscription. Ccna security 210260 official cert guide cisco press. Darrin miller is an engineer in the security technology group at cisco.
1190 807 1424 1006 1462 900 714 325 297 672 195 925 633 618 21 1294 1473 627 699 787 1368 659 1391 1381 243 1330 140 1273 483 123 132 1226 1024 961 589 398 63 382