200-125 ccna dumps

200-125 ccna dumps

ICMPv6 is one of the basic protocols of IPv6 . Protocol number 58 , which is in the "Next Header" field of the IPv6 header. NLRI : is a set of destinations, expressed as an IPv6 prefix. The configuration of R2 is as follows: Distribute-list 1 in Bgp router-id 2.2.2.2 Image After R2 show run , I found: Image Route-map Ip cef Ip route 192.168.1.0 255.255.255.0 172.16.12.1 When ISP1 is down, and the GW does not detect it (that is , the interface of GW connected to ISP1 is not DOWN ), the traffic of PC access 100 is still thrown to ISP1 , which is disconnected. OSPFv3 the RouterID or 32bits , if not on the router IPv4 address, in OSPFv3 manually specify the required process Exit The TAG value is set when the originating ASBR generates an external LSA . If the external LSA is re-advertised to other OSPF autonomous systems, the TAG value is carried by default. Image Request the entire routing table: The request message contains a single route with an address family identifier field of 0 (address 0.0.0.0 ) and a metric of 16. The device receiving the request will unicast it back to the requesting address. The entire routing table. !! This must be knocked Exit-address-family Ipv6 nat v4v6 source 202.101.100.2 2001:2::2 Manual IPv6 over IP tunnel RIP also supports tags , but it must be version 2 . Tunnel interfaces do not necessarily need ipv6 address , of course, can also be configured v6 address, it does not affect traffic through the router configuration is complete, PC1 can ping through PC2 , Ethereal as follows: *Mar 1 00:11:47.951: ICMP: echo reply rcvd, src 2.2.2.2, dst 192.168.123.3 Image The PMTU here refers to the one-way, the smallest of the data outbound MTU along the way . Image Interface FastEthernet0/0 no ip address Generally, the IPv6 address space applied from the operator is /48 , and further planning by yourself according to the needs: as shown below: Router redirection Route filtering or execution strategy during redistribution The GRE tunnel is a well-known standard tunneling technology that guarantees a stable and secure end-to-end link. PE1#show bgp vpnv6 unicast all 2001:5555::5/128 Specify a smaller MTU=1400 in the ICMPv6 message. Image All options are longer than or equal to 0 0xF895 IPV6 cancels the use of NS and NA for arp ,200-125 ccna dumps, using solicited address URL representation of the IPv6 address Image Wherein R2 is as follows: Ip name-server 1.1.1.2 Image Router ospf 1 Ipv6 nat Valid lifetime ( ! Valid Lifetime ) BGP IPv6 application By default , Cisco routers enable fast switching or optimal switching or cef switching instead of process Interface FastEthernet1/0 Image Ip prefix-list ABC seq 5 permit 0.0.0.0/0 le 32 Update timer update timer OR2 configuration Image Net 49.0001.0000.0000.0002.00 Configure on R2 as follows: 1400 Metric =0 Interface vlan 10 ::FFFF:4.4.4.4 (metric 3) from 4.4.4.4 (4.4.4.4) Then, first R2's own routing table will change, 3.0 routing is filtered out, and R3 is the downstream RIP router, 3.0 can not learn. 32 bits Multilink Multilink-group interface Interface FastEthernet0/0 ipv6 enable None does not send updates ( passive ) For a comprehensive explanation of IPv6 multicast , please see the "Black Tea Three Cup Multicast Technical Notes" RIP Version 2 Protocol Applicability Statement Interface fast0/0 ipv6 enable In any IS-IS network, the L2 router responsible for inter-area routing must be contiguous. Similarly, for IPv4 single protocol environments, IPv6 single protocol environments, or IPv4-IPv6 environments, L2 routers must be contiguous. Otherwise a routing black hole will be generated. RIP Version 2 MIB Extension Ipv6 unicast-routing !! Note that to support IPv6 unicast routing protocols, this switch must be turned on. Image Access-list 1 permit 202.101.100.0 0.0.0.255 The AD value of 11.11.11.0/24 is adjusted to be larger than OSPF , for example 130 . So the configuration is as follows: !! Construct an Ipv6 address using the EUI64 address; For example, in the above figure, the network has two exit lines, which are connected to ISP1 and ISP2 respectively . If you want to let the intranet student users access the ISP1 line when accessing the external network , and the ISP2 line when the teacher network segment accesses the external network , This is not possible with traditional routing because traditional IP routing does not care about the source address of the data. This must be done with PBR .