WIDE-DHCPv6 client Configuration
The/etc/config/dhcp6cFile controls the WIDE-DHCPv6 client packageWide-dhcpv6-clientConfiguration. It definesBasic PropertiesAndInterface settings.Sections
A Typical default configuration consists of onedhcp6cSection with common settings and one or moreinterfaceSections, usually coveringLanAndLoopbackNetworks.Basic Properties
The s
Login ing ISC dhcpv6 Server
Contents[Hide]
1 Preface
1.1 stateless Configuration
1.2 stateful Configuration
2 Installation
2.1 softwaredownload
2.2 sampleconfigurations
3 serverconfiguration
3.1 preconfigurationsteps
3.2 adding the serverinterface to your subnet
3.2.1 ifconfig
3.2.2 IP
3.3 The expected IP
Cisco IOS/ios xe DHCPv6 relay Denial of Service Vulnerability (CVE-2016-1348)Cisco IOS/ios xe DHCPv6 relay Denial of Service Vulnerability (CVE-2016-1348)
Release date:Updated on:Affected Systems:
Cisco IOS
Description:
CVE (CAN) ID: CVE-2016-1348Cisco IOS is an interconnected network operating system used on most Cisco system routers and network switches.Cisco IOS, ios xe has a vulnerability in the
Ask: how to configure the dhcpv6 client under fedora-Linux Enterprise Application-Linux server application information. For details, refer to the following. Consultation: dhcpv6 client configuration problems!
The dhcpv6 server has been configured. On rhel, from the log message, it is in
The dhcpv6 client is configure
Release Date: 2007-09-19
Renew Date: 2007-09-19
Affected Systems:
Dibbler Dibbler 0.6
Unaffected system:
Dibbler Dibbler 0.6.1
Describe:
Bugtraq id:25726
Dibbler is a portable DHCPV6 protocol implementation.
Dibbler There are multiple memory corruption vulnerabilities that can be exploited by remote attackers to cause services to crash or control the server when handling packets with malformed data.
Dibbler can cause a heap overflow and memo
Release Date: 2007-09-19
Renew Date: 2007-09-19
Affected Systems:
Dibbler Dibbler 0.6
Unaffected system:
Dibbler Dibbler 0.6.1
Describe:
Bugtraq id:25726
Dibbler is a portable DHCPV6 protocol implementation.
Dibbler There are multiple memory corruption vulnerabilities that can be exploited by remote attackers to cause services to crash or control the server when handling packets with malformed data.
Dibbler can cause a heap overflow and memo
1. Address classificationThe main things that are more important are the following:Local link address: Used to communicate with each other between linksLocal site Address: Used to communicate with each other within the subnet, similar to private addresses in IPv4Global unicast Address: Similar to the public address in IPv4Multicast address2. Address acquisitionThere are two main ways: no State;Stateless, through routing advertisement (RA), get network prefix (prefix), combined with native MAC ad
............. : DHCPv6 Iaid ........... : 1512183512 DHCPv6 Client DUID ...: 00-01-00-01-19-03-ef-d5-08-60-6e-dc-a7-b7 the DNS server .....
...: fec0:0:0:ffff::1%1 fec0:0:0:ffff::2%1 NetBIOS on fec0:0:0:ffff::3%1 TCPIP ...: Wireless LAN adapter wireless network connection enabled: Media status ........... . : The media has disconnected the specific DNS suffix ...: desc
external address (such as a LAN user accessing Qq forward chain for processing (whether forwarding or blocking), and then handing it over to Postrouting Outbound Data Flow : The firewall native to the external address of the packet sent (such as in the firewall host to test the public DNS service), first by the OUTPUT rule chain processing, followed by routing, Pass to the posttouting rule chain (whether to modify the address of the packet, etc.) for processingAttachment rule ChainFirewall Zo
session optional pam_xauth.so set root account for mail forwarding # person who should get root ' mail # last line, take Uncomment, change user name Root:wang
2. Set up firewalls and SELinux
"1" Firewall
View firewall status
[Root@vdevops ~]# systemctl status firewalld firewalld.service-firewalld-dynamic firewall daemon Loaded:loa
Ded (/usr/lib/systemd/system/firewalld.service; vendor preset:enabled)
Active:active (running) since Wed 2016-10-26 01:09:49 CST; 1h 36min ago
Main pi
Editor's note: IPv6 automatic address configuration is increasingly concerned with the security and confidentiality of IPv6 addressing. The automatically configured IPv6 addresses have three security meanings: they narrow down the search scope for an attacker to initiate an address Scan attack, they can be associated with node activity of a network, and they can more easily track hosts. Fernando Gont, a security engineer and consultant, introduced some methods to combat these problems and consid
the packet is discarded, so the R1 cannot complete further routing.
Before the Kilo version, you would either prohibit security groups or use security groups for the entire cloud. Starting with the Kilo version, you can use the new attribute port-security-enabled to enable or disable security groups on a port. This new property is currently supported by the Open VSwitch agent and Iptablesfirewalldriver.Back to the previous topology, you can now disable security groups on ports on R1 and R2
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