Ipv6 address calculator

Provided by: sipcalc_1.1.5-1_amd64 NAME sipcalc - IP subnet calculatorSYNOPSIS sipcalc [ -abcdehiInrsStuvx46 ] - ]>DESCRIPTION Sipcalc is an ip subnet calculator consisting of two parts. A plain text based console version, and web (cgi) based counterpart. This manpage only addresses the console based version. Sipcalc, in it's simplest form takes an ip-address and a subnet mask on the commandline and outputs information about the subnet. Sipcalc has support for both IPv4 and IPv6 addresses. Sipcalc can take input in three forms, an ip-address/netmask, an interface or via stdin using the special character -. Address-IPv4 Address must be given in the "standard" dotted quad format, ie.: xxx.xxx.xxx.xxx and prepended with a netmask the can be given in three different ways: - CIDR, ex. /n where n >= 0 = 0 cat(1) ing a list of addresses stored in a file to sipcalc. Each line sent to sipcalc should contain one address/netmask or interface. Any number/combination of Address and Interface arguments can exist on the commandline, however, the special character - must be the first argument or it will be parsed as an interface. All options following the - character will be discarded. Features (IPv4) - * Multiple address and netmask input formats. * Retrieving of address information from interfaces. * Classfull and CIDR output. * Multiple address and netmask output formats (dotted quad, hex, number of bits). * Output of broadcast address, network class, Cisco wildcard, hosts/range, network range. * Output of multiple types of bitmaps. * Output of a user-defined number of extra networks. * Multiple networks input from commandline. * DNS resolutions of hostnames. * Parsing of a newline separated list of networks from standard input (STDIN). * The ability to "split" a network based on a smaller netmask, also with recursive runs on the generated subnets. Features (IPv6) - * Compressed and expanded input addresses. * Compressed and expanded output. * Standard IPv6 network output. * v4 in v6 output. * Reverse dns address generation. * DNS resolutions of hostnames. * The ability to "split" a network based on a smaller netmask, also with recursive runs on the

Working life.You will hear a lot about dual-stack strategy for implementing IPv6 in enterprise networks. The strategy offers a gradual migration path from IPv4 to IPv6 letting IPv4 and IPv6 to coexist. The routers are configured with IPv6 addresses on their interfaces, and they router IPv6 packets just like they route IPv4 packets. The hosts can implement IPv6 when ready, running dual stack or running both IPv4 and IPv6. IPv6 Static Address ConfigurationThere are two methods of configuring static IPv6 addresses on Cisco routers:Configuring the full 128-bit addressConfiguring a 64-bit prefix only, and letting the router derive the rest of addressYou can use the ipv6 address address/prefix-length command to configure the full 128-bit global unicast and unique local addresses. You can use the full 32-digit hex address as well as the abbreviated address in the ipv6 address address/prefix-length command.Figure 14-4 IPv6 Address Configuration We are going to configure 128-bit IPv6 addresses on R1 and R2 and you will see the configuration is quite simple.R1:ipv6 unicast-routing!interface FastEthernet0/0ipv6 address 2001:0DB8:0001:0001:0000:0000:0000:0001/64!interface Serial0/0ipv6 address 2001:0DB8:0001:0012:0000:0000:0000:0001/64R2:ipv6 unicast-routing!interface FastEthernet0/0ipv6 address 2001:DB8:1:2::1/64!interface Serial0/0ipv6 address 2001:DB8:1:12::2/64We have used the unabbreviated address format in the configuration for R1 while using the abbreviated address format on R2.Key Concept You must use the ipv6 unicast-routing command to enable IPv6 routing on the router.We used an easily forgotten command while configuring IPv6 addresses on R1 and R2 and that is ipv6 unicast-routing. We are used to configuring IPv4 addresses on routers and you don’t have to enable IPv4 processing on routers as

ALLOW_INTERNAL_NETWORK set ipv6 next-hop 2001:10:10:10::2!ipv6 access-list ALLOW_INTERNAL_NETWORK permit ipv6 6001:66:66:66::/64 any!--- Creates IPv6 access-list ALLOW_INTERNAL_NETWORK !--- and permits any ipv6 address in the network 6001:66:66:66::/64! Intermediate Router Configuration Intermediate_Router#!ip cef!ipv6 unicast-routingipv6 cef!interface FastEthernet0/0 no ip address duplex auto speed 100 ipv6 address 2001:10:10:10::2/64 ipv6 enable ipv6 eigrp 55!interface FastEthernet0/1 no ip address duplex auto speed 100 ipv6 address 4001:10:10:10::2/64 ipv6 enable ipv6 eigrp 55!ipv6 router eigrp 55 router-id 2.2.2.2 no shutdown! Internet Router Configuration Internet_Router#!ip cef!ipv6 unicast-routingipv6 cef!!interface Loopback10 no ip address ipv6 address 5001:55:55:55::5/64 ipv6 enable!interface FastEthernet0/0 no ip address duplex auto speed 100 ipv6 address 1001:10:10:10::2/64 ipv6 enable ipv6 eigrp 55!interface FastEthernet0/1 no ip address duplex auto speed 100 ipv6 address 4001:10:10:10::1/64 ipv6 enable ipv6 eigrp 55!ipv6 route ::/64 Loopback10ipv6 router eigrp 55 router-id 1.1.1.1 no shutdown redistribute connected! Local Router Configuration Local_Router#!ip cef!ipv6 unicast-routingipv6 cef!!interface Loopback10 no ip address ipv6 address 6001:66:66:66::6/64 ipv6 enable!interface FastEthernet0/0 no ip address speed 100 full-duplex ipv6 address 3001:10:10:10::2/64 ipv6 enable!!ipv6 route ::/64 FastEthernet0/0!--- Static route is configured in the local router.! Verify Issue the ping command from Local_Router in order to check the policy-based routing: Local_Router#ping ipv6 5001:55:55:55::5Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 5001:55:55:55::5, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 8/40/76 ms Enable this debug command on WAN_Router in order to see if the policy-based routing is functioning properly or not: Wan_Router#debug ipv6 policyIPv6 policy-based routing debugging is onWan_Router#*Mar 1 04:10:43.846: IPv6 PBR (CEF): FastEthernet1/0, matched src 6001:66:66:66::6 dst 5001:55:55:55::5 protocol 17*Mar 1 04:10:43.846: IPv6 PBR (CEF): FIB policy route via FastEthernet0/1*Mar 1 04:10:46.826: IPv6 PBR (CEF): FastEthernet1/0, matched src 6001:66:66:66::6 dst 5001:55:55:55::5 protocol 17*Mar 1 04:10:46.826: IPv6 PBR (CEF): FIB policy route via FastEthernet0/1*Mar 1 04:10:49.834: IPv6 PBR (CEF): FastEthernet1/0, matched src 6001:66:66:66::6 dst 5001:55:55:55::5 protocol 17*Mar 1 04:10:49.834: IPv6 PBR (CEF): FIB policy route via FastEthernet0/1*Mar 1 04:10:52.838: IPv6 PBR (CEF): FastEthernet1/0, matched src 6001:66:66:66::6 dst 5001:55:55:55::5 protocol 17*Mar 1 04:10:52.838: IPv6 PBR (CEF): FIB policy route via FastEthernet0/1 Troubleshoot Example of an Incorrect Configuration IPv4 and IPv6 PBR cannot coexist on an interface as this example output shows:

Reduce the guard interval time therefore increasing the data capacity. However, it’s less reliable and may create higher data loss. D-Link DIR-615 User Manual... Page 48: Advanced Network Settings Enabled. UPNP provides compatibility with networking equipment, software and peripherals. WAN Ping: Unchecking the box will not allow the DIR-615 to respond to pings. Blocking the Ping may provide some extra security from hackers. Check the box to allow the Internet port to be “pinged”. Page 49: Ipv6 Section 3 - Configuration IPv6 Link-Local Connectivity My IPv6 Connection: Select Link-Local.Only from the drop-down menu. LAN IPv6 Address Displays the IPv6 address of the router. Settings: D-Link DIR-615 User Manual... Page 50: Static Ipv6 (Stateful) Enter the start IPv6 Address for the DHCPv6 range for your local computers. IPv6 Address Range End: Enter the end IPv6 Address for the DHCPv6 range for your local computers. IPv6 Address Lifetime: Enter the IPv6 Address Lifetime (in minutes). D-Link DIR-615 User Manual... Page 51: Static Ipv6 (Stateless) LAN Link-Local Address: Displays the Router’s LAN Link-Local Address. Enable Autoconfiguration: Check to enable the Autoconfiguration feature. Autoconfiguration Type: Select Stateless. Refer to the previous page for Stateful. Router Advertisement Enter the Router Advertisement Lifetime (in minutes). Lifetime: D-Link DIR-615 User Manual... Page 52: Dhcpv6 (Stateful) Enter the start IPv6 Address for the DHCPv6 range for your local computers. IPv6 Address Range End: Enter the end IPv6 Address for the DHCPv6 range for your local computers. IPv6 Address Lifetime: Enter the IPv6 Address Lifetime (in minutes). D-Link DIR-615