Link-local IPv6 Address

Tweet A link-local IPv6 address is begging with the bit pattern 1111 1110 1000 0000 or FE80::10. Link-local means packets sourced from or destined to…

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How to locate a IP address using WHOIS

I saw there are some sites on internet selling IP address databases. I thought those information would be free, if you know some commands. “Whois”…

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How to use IP helper-address to connect remote DHCP server

Once in a while, I see "IP helper-address" command for broadcast applications such as DHCP client(BOOTP), NetBIOS and so on. As you know IP helper-address…

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FTP : mput with no confirmation

When you are transferring multiple files to your destination, ‘mput’ or ‘mget’ will be the one command used. Well, if we don’t have ftp application…

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IP addressing ending .0 or .255

Tweet There is much confusion on ip address ending with .0 or .255. In general, .0 would be considered as a network identifier and .255…

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EUI-64 IPv6 addressing for interface ID

Tweet IPv6 address is consist of two parts, network ID is the first and the interface ID is following part. The interface ID of IPv6…

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How to setup NTP on Cisco router with summer-time zone

Tweet Accurate clock record is very information when you are troubling an issue. In these days, many NTP servers are availabe to use as free….

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