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Access Control Lists and IP Fragments
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This White Paper explains the different kinds of Access Control List (ACL) entries and what happens when different kinds of packets encounter these various entries. ACLs are used to block IP packets from being forwarded by a router.
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9
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www.cisco.com/en/US/tech/tk827/tk369/technologies_white_paper09186a00800949b8.shtml
10 Aug 2005
This document presents guidelines and recommended deployment techniques for infrastructure protection access control lists (ACLs). Infrastructure ACLs are used to minimize the risk and effectiveness of direct infrastructure attack by explicitly permitting only authorized traffic...
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6
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www.cisco.com/en/US/tech/tk648/tk361/technologies_white_paper09186a00801a1a55.shtml
21 Oct 2008
This document presents guidelines and recommended deployment techniques for filtering transit and edge traffic at your network ingress points. Transit access control lists (ACLs) are used to increase network security by explicitly permitting only required traffic into your network...
www.cisco.com/en/US/tech/tk648/tk361/technologies_white_paper09186a00801afc76.shtml
13 Oct 2006
...following: Filtering IP Options Filtering...Filtering noninitial fragments of packets (see the module “Refining an IP Access List”) ...on which to base an access list: Source address...a source address to control packets coming from...
www.cisco.com/en/US/docs/ios-xml/ios/sec_data_acl/configuration/xe-3s/sec-access-list-ov.html
02 Dec 2011
This document provides sample configurations for commonly used IP Access Control Lists (ACLs), which filter IP packets based on:
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www.cisco.com/en/US/tech/tk648/tk361/technologies_configuration_example09186a0080100548.shtml
28 Jan 2008
...involving access lists and IP fragments. Fragments...the fragment control feature affect...involving access lists and IP fragments. Fragments...the fragment control feature affect...
www.cisco.com/en/US/docs/ios/12_2s/feature/guide/fsaclseq.html
28 Jul 2003
The purpose of this document is to present how IP Fragmentation andPath Maximum Transmission Unit Discovery (PMTUD) work and to discuss somescenarios involving the behavior of PMTUD when combined with differentcombinations of IP tunnels. The current widespread use of IP tunnels in...
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92
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www.cisco.com/en/US/tech/tk827/tk369/technologies_white_paper09186a00800d6979.shtml
14 Jan 2008
This document describes a new security feature called receive access control lists (rACLs)1 and presents recommendations and guidelines for rACL deployments. Receive ACLs are used to increase security on Cisco 12000 routers by protecting the router's gigabit route processor (GRP)...
www.cisco.com/en/US/tech/tk648/tk361/technologies_white_paper09186a00801a0a5e.shtml
23 Feb 2006
Six vulnerabilities involving Access Control List (ACL) has been discovered in multiple releases of Cisco IOS® Software Release for Cisco 12000 Series Internet Routers. Not all vulnerabilities are present in all IOS releases and only line cards based on the Engine 2 are affected...
www.cisco.com/en/US/products/csa/cisco-sa-20011114-gsr-acl.html
10 Dec 2011
...that this kind of control can only be implemented...of the size of the access list, the forwarding rate...secondary VLAN in order to control the traffic leaving...not work well with IP traffic, so VACLs...with regard to the fragment handling on the PFC...
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www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note09186a008013565f.shtml
08 May 2008
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