交换机通过在所有 vPC VLAN SVI 上配置no ip redirects和no ipv6 redirects来实现此目的。这可以防止交换机生成ICMP重定向数据包,以响应传入交换机,但具有交换机vPC对等体的目标MAC和IP地址的数据包。 如果在环境中的特定 VLAN 内需要使用 ICMP 或 ICMPv6 重定向数据包,请使用peer-gateway exclude-vlan<vlan-id>...
(config-if)#no ip address (config-if)#pppoe enable (启用PPPOE协议) (config-if)#pppoe-client dial-pool-number 10 (建立客户端拨号表,10代表表名字) 4、配置ADSL接口 (config)#interface Dialer1 (如果是WIC-1ADSL+路由 则应该是interface ATM 0) (config-if)#ip address negotiated (自动获得IP) (...
Router(Config)# no ip proxy-arp Router(Config-if)# no ip proxy-arp 8禁止IP Directed Broadcast。 Router(Config)# no ip directed-broadcast 9 禁止IP Classless。 Router(Config)# no ip classless 10 禁止ICMP协议的IP Unreachables, Redirects, Mask Replies。 Router(Config-if)# no ip unreacheables...
no ip redirects ip nhrp authentication cisco ip nhrp map multicast dynamic ip nhrp network-id 100 no ip split-horizon tunnel source 30.1.1.2 tunnel mode gre multipoint tunnel protection ipsec profile DZVPN ! interface FastEthernet0/0 ip address 30.1.1.2 255.255.255.0 router ospf 1 log-adjacency...
正常的ip网络中,一台路由器只向位于自己本地子网的主机发送重定向消息,端节点不会发送这种消息,此消息也不会超过一个网络跳数的地方发送。不过攻击者可以违反这种规则。 CcertRAT(Config-if)# no ip redirects cisco ios会向icmp掩码要求发送icmp掩码应答的消息,其中包括接口的ip地址掩码。必须关闭路由器上所有路由...
interface Port-channel3 ip address 10.1.193.161 255.255.255.252 no ip redirects no ip unreachables no ip proxy-arp ip ospf authentication message-digest ip ospf message-digest-key 1 md5 7 104F08170003 ip ospf network point-to-point ip ospf cost 1000 ! interface TenGigabitEthernet2/2 no ip ...
interface Port-channel3 ip address 10.1.193.161 255.255.255.252 no ip redirects no ip unreachables no ip proxy-arp ip ospf authentication message-digest ip ospf message-digest-key 1 md5 7 104F08170003 ip ospf network point-to-point ip ospf cost 1000 ! interface TenGigabitEthernet2/2 no ip ...
interface Port-channel3 ip address 10.1.193.161 255.255.255.252 no ip redirects no ip unreachables no ip proxy-arp ip ospf authentication message-digest ip ospf message-digest-key 1 md5 7 104F08170003 ip ospf network point-to-point ip ospf cost 1000 ! interface TenGigabitEthernet2/2 no ip ...
>> CSR1 interface GigabitEthernet1 ip address 192.168.123.1 255.255.255.0 negotiation auto end ip route 0.0.0.0 0.0.0.0 192.168.123.3 >> CSR2 interface GigabitEthernet1 ip address 192.168.123.2 255.255.255.0 no ip redirects negotiation auto end ip route 0.0.0.0 0.0.0.0 192.168.123.3 >> CSR3...
interface Port-channel3 ip address 10.1.193.161 255.255.255.252 no ip redirects no ip unreachables no ip proxy-arp ip ospf authentication message-digest ip ospf message-digest-key 1 md5 7 104F08170003 ip ospf network point-to-point ip ospf cost 1000 ! interface TenGigabitEthernet2/2 no ip ...