网络路由技术详解:从IPv4到IPv6

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"该文档是关于网络路由技术的电子书,涵盖了IPv4和IPv6的相关知识,包括IP包头、IPv4地址、地址掩码、子网规划、ARP、ICMP、TCP、LLDP等内容,适合网络专业人士学习。" 本文档详细介绍了网络路由的基本概念和技术,特别是针对IPv4和IPv6的地址结构和路由协议。首先,文章阐述了IP包的头部结构,这是数据在网络中传输的基础。然后,深入讨论了IPv4地址,包括首组八位字节规则、地址掩码、子网和子网掩码的概念,以及如何进行子网规划。这些内容对于理解网络地址的分配和网络划分至关重要。 接着,文档讲解了打破八位组界限的概念,这对于理解和处理非连续的IP地址范围有帮助。同时,子网掩码的故障诊断部分提供了识别和解决网络配置问题的方法。地址解析协议(ARP)的介绍包括了代理ARP、无故ARP和反向ARP,这些都是网络通信中解决IP地址到物理地址转换的关键技术。 ICMP(Internet Control Message Protocol)部分则涵盖了网络诊断和控制消息,它是网络通信中的重要组成部分。TCP(Transmission Control Protocol)和LLDP(Link Layer Discovery Protocol)的讲解揭示了主机间通信的细节,TCP确保数据可靠传输,而LLDP用于发现和收集网络设备信息。 文档还展望了网络路由技术的未来发展趋势,并提供了命令总结、推荐读物、复习题和配置及故障诊断练习,旨在帮助读者巩固所学知识并提升实践能力。 此外,文档也简要介绍了IPv6地址的表示法和类型,随着IPv4地址的耗尽,IPv6的重要性日益凸显。这部分内容对于理解和适应IPv6网络环境至关重要。 这份资料是网络专业人士深入了解和掌握路由技术的宝贵资源,包含了从基础知识到高级应用的广泛内容。虽然仅供试读,但建议对网络技术有兴趣的读者购买正版以获取完整的学习体验。

分析下面的ebtables规则 # ebtables -L Bridge table: filter Bridge chain: INPUT, entries: 2, policy: ACCEPT -j br_wan -j portmapping_igmp Bridge chain: FORWARD, entries: 6, policy: DROP -j disBCMC -j br_wan_forward -j wlan_block -j wlan_map_block -j macfilter -j portmapping Bridge chain: OUTPUT, entries: 2, policy: ACCEPT -j br_wan_out -j br_lan_out Bridge chain: br_lan_out, entries: 2, policy: ACCEPT -p IPv6 -o eth0.4 --ip6-proto ipv6-icmp --ip6-icmp-type router-advertisement -j DROP -p IPv6 -o eth0.5 --ip6-proto ipv6-icmp --ip6-icmp-type router-advertisement -j DROP Bridge chain: br_wan_forward, entries: 3, policy: RETURN -p IPv6 -o nas0_5 -j ACCEPT -p PPP_SES -o nas0_5 -j ACCEPT -o nas0_5 -j DROP Bridge chain: wlan_block, entries: 0, policy: RETURN Bridge chain: wlan_map_block, entries: 0, policy: RETURN Bridge chain: disBCMC, entries: 2, policy: RETURN -d Broadcast -j DROP -d Multicast -j DROP Bridge chain: br_wan, entries: 1, policy: RETURN -i nas0_5 -j DROP Bridge chain: br_wan_out, entries: 1, policy: RETURN -o nas0_5 -j DROP Bridge chain: portmapping_igmp, entries: 2, policy: RETURN -p IPv4 -i eth0.4 --ip-proto igmp -j DROP -p IPv4 -i eth0.5 --ip-proto igmp -j DROP Bridge chain: macfilter, entries: 0, policy: ACCEPT Bridge chain: portmapping, entries: 31, policy: ACCEPT -i nas0_5 -o wlan1-vap3 -j RETURN -i wlan1-vap3 -o nas0_5 -j RETURN -i nas0_5 -o wlan1-vap2 -j RETURN -i wlan1-vap2 -o nas0_5 -j RETURN -i nas0_5 -o wlan1-vap1 -j RETURN -i wlan1-vap1 -o nas0_5 -j RETURN -i nas0_5 -o wlan1-vap0 -j RETURN -i wlan1-vap0 -o nas0_5 -j RETURN -i nas0_5 -o wlan1 -j RETURN -i wlan1 -o nas0_5 -j RETURN -i nas0_5 -o wlan0-vap3 -j RETURN -i wlan0-vap3 -o nas0_5 -j RETURN -i nas0_5 -o wlan0-vap2 -j RETURN -i wlan0-vap2 -o nas0_5 -j RETURN -i nas0_5 -o wlan0-vap1 -j RETURN -i wlan0-vap1 -o nas0_5 -j RETURN -i nas0_5 -o wlan0-vap0 -j RETURN -i wlan0-vap0 -o nas0_5 -j RETURN -i nas0_5 -o wlan0 -j RETURN -i wlan0 -o nas0_5 -j RETURN -i nas0_5 -o eth0.5 -j RETURN -i eth0.5 -o nas0_5 -j RETURN -i nas0_5 -o eth0.4 -j RETURN -i eth0.4 -o nas0_5 -j RETURN -i eth+ -o eth+ -j RETURN -i eth+ -o wlan+ -j RETURN -i wlan+ -o eth+ -j RETURN -i wlan+ -o wlan+ -j RETURN -i eth0+ -j DROP -i wlan+ -j DROP -i nas0_5 -j DROP

2023-07-08 上传

#DESCRIPTION:Resource namespaces pidns01 pidns01 pidns02 pidns02 pidns03 pidns03 pidns04 pidns04 pidns05 pidns05 pidns06 pidns06 pidns10 pidns10 pidns12 pidns12 pidns13 pidns13 pidns16 pidns16 pidns17 pidns17 pidns20 pidns20 pidns30 pidns30 pidns31 pidns31 pidns32 pidns32 mqns_01 mqns_01 mqns_01_clone mqns_01 -m clone mqns_01_unshare mqns_01 -m unshare mqns_02 mqns_02 mqns_02_clone mqns_02 -m clone mqns_02_unshare mqns_02 -m unshare mqns_03 mqns_03 mqns_03_clone mqns_03 -clone mqns_04 mqns_04 mqns_04_clone mqns_04 -clone netns_netlink netns_netlink netns_breakns_ip_ipv4_netlink netns_breakns.sh netns_breakns_ip_ipv6_netlink netns_breakns.sh -6 netns_breakns_ip_ipv4_ioctl netns_breakns.sh -I netns_breakns_ip_ipv6_ioctl netns_breakns.sh -6I netns_breakns_ns_exec_ipv4_netlink netns_breakns.sh -e netns_breakns_ns_exec_ipv6_netlink netns_breakns.sh -6e netns_breakns_ns_exec_ipv4_ioctl netns_breakns.sh -eI netns_breakns_ns_exec_ipv6_ioctl netns_breakns.sh -6eI netns_comm_ip_ipv4_netlink netns_comm.sh netns_comm_ip_ipv6_netlink netns_comm.sh -6 netns_comm_ip_ipv4_ioctl netns_comm.sh -I netns_comm_ip_ipv6_ioctl netns_comm.sh -6I netns_comm_ns_exec_ipv4_netlink netns_comm.sh -e netns_comm_ns_exec_ipv6_netlink netns_comm.sh -6e netns_comm_ns_exec_ipv4_ioctl netns_comm.sh -eI netns_comm_ns_exec_ipv6_ioctl netns_comm.sh -6eI netns_sysfs netns_sysfs.sh shmnstest_none shmnstest -m none shmnstest_clone shmnstest -m clone shmnstest_unshare shmnstest -m unshare shmem_2nstest_none shmem_2nstest -m none shmem_2nstest_clone shmem_2nstest -m clone shmem_2nstest_unshare shmem_2nstest -m unshare shm_comm shm_comm mesgq_nstest_none mesgq_nstest -m none mesgq_nstest_clone mesgq_nstest -m clone mesgq_nstest_unshare mesgq_nstest -m unshare msg_comm msg_comm sem_nstest_none sem_nstest -m none sem_nstest_clone sem_nstest -m clone sem_nstest_unshare sem_nstest -m unshare semtest_2ns_none semtest_2ns -m none semtest_2ns_clone semtest_2ns -m clone semtest_2ns_unshare semtest_2ns -m unshare sem_comm sem_comm utsname01 utsname01 utsname02 utsname02 utsname03_clone utsname03 -m clone utsname03_unshare utsname03 -m unshare utsname04_clone utsname04 -m clone utsname04_unshare utsname04 -m unshare mountns01 mountns01 mountns02 mountns02 mountns03 mountns03 mountns04 mountns04 userns01 userns01 userns02 userns02 userns03 userns03 userns04 userns04 userns05 userns05 userns06 userns06 userns07 userns07 userns08 userns08 # time namespaces sysinfo03 sysinfo03 clock_nanosleep03 clock_nanosleep03 clock_gettime03 clock_gettime03 timens01 timens01 timerfd04 timerfd04

2023-07-20 上传

net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syn

2023-03-17 上传