{"id":54,"date":"2020-06-24T13:23:37","date_gmt":"2020-06-24T13:23:37","guid":{"rendered":"https:\/\/www.practicallynetworked.com\/?p=54"},"modified":"2022-10-25T10:36:51","modified_gmt":"2022-10-25T10:36:51","slug":"testing-tcp-ip","status":"publish","type":"post","link":"https:\/\/www.practicallynetworked.com\/testing-tcp-ip\/","title":{"rendered":"Testing TCP\/IP"},"content":{"rendered":"

Ping, ping, ping!<\/h3>\n

After you configure the Network software and set the IP addresses,\u00a0 use the\u00a0ping<\/em><\/b>\u00a0command on the\u00a0Sharing Computer<\/b>\u00a0to make sure all of the computers are “alive” (at least in the TCP\/IP sense).<\/p>\n

\"attentionsml-5411879\"NOTE!<\/b>\u00a0You will not be able to ping your ISP or any Internet address from your Sharing Clients until you install your Sharing software.\u00a0<\/span><\/i><\/b>This is because they are on separate subnets and require the Sharing software to route (or move) data between the subnets.<\/p>\n

To do this, go to the Windows\u00a0Start<\/em><\/b>\u00a0button, choose\u00a0Programs<\/em><\/b>, then\u00a0MSDOS Prompt<\/em><\/b>.
\nWhen you get the\u00a0C:<\/em>\u00a0prompt, type\u00a0ping 127.0.0.1<\/em><\/b>
\nIf everything is ok, you should get the following response (or something similar):<\/p>\n

Pinging 127.0.0.1 with 32 bytes of data<\/small><\/b><\/span><\/p>\n

Reply from 127.0.0.1: bytes=32 time<10ms TTL=32
\nReply from 127.0.0.1: bytes=32 time<10ms TTL=32<\/small>
\nReply from 127.0.0.1: bytes=32 time<10ms TTL=32<\/small>
\nReply from 127.0.0.1: bytes=32 time<10ms TTL=32<\/small><\/p>\n


\n<\/span>This means that TCP\/IP is working on the machine that you are typing on.\u00a0\u00a0127.0.0.1<\/b>\u00a0is a special address that “loops back” to the machine you are pinging from. \u00a0 You can also type\u00a0ping localhost<\/b><\/em>\u00a0and receive a similar response, since\u00a0localhost<\/b>\u00a0and\u00a0127.0.0.1<\/b>\u00a0mean the same thing<\/a>.
\n
\n<\/span>If things\u00a0aren’t<\/b>\u00a0ok, you’ll get something like:<\/p>\n

Pinging 127.0.0.1 with 32 bytes of data<\/b><\/small><\/span><\/p>\n

Request timed out.
\nRequest timed out.<\/b><\/small>
\nRequest timed out.<\/b><\/small>
\nRequest timed out.<\/b><\/small><\/p>\n

Better try the\u00a0troubleshooting<\/b><\/a>\u00a0tips.<\/p>\n

If the above “pinged” ok, next you should ping your\u00a0cable modem NIC IP<\/b>. \u00a0 This is the second network that connects to your soon-to-be shared computer, and is a subnet of your cable provider.<\/p>\n

Type\u00a0ping [yourISPIP]\u00a0<\/b>where [yourISPIP] is the IP address temporarily assigned to you by your ISP.\u00a0 You should get the proper “Reply from…” response.<\/p>\n

If you don’t know your cable modem NIC IP address, use the\u00a0winipcfg<\/b><\/a>\u00a0command to find out.\u00a0 An example\u00a0winipcfg<\/b>\u00a0screen is shown below (you’ll have to click on the “More Info<\/b>” button on the opening Control Panel to get this view).\u00a0 Your temporary IP address is next to\u00a0IP Address<\/b>\u00a0in the\u00a0Ethernet Adapter Information<\/b>\u00a0section.<\/p>\n

\"image21-1449241\"<\/p>\n

If all of\u00a0that<\/b>\u00a0is ok, then you’re on a roll, so you might as well ping your\u00a0sharing Clients<\/b>!\u00a0 They will have IP addresses of\u00a0192.168.0.X<\/b>, so go ahead and ping ’em.<\/p>\n

You can also try pinging the second NIC on the Sharing computer\u00a0from<\/i><\/b>\u00a0your Client computer(s).\u00a0 Also try Client to Client if you have more than one.\u00a0 Just don’t try to ping your ISP or anything other than the computers on the LAN.\u00a0\u00a0That won’t work until after you set up Sharing.<\/i><\/b><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Ping, ping, ping! After you configure the Network software and set the IP addresses,\u00a0 use the\u00a0ping\u00a0command on the\u00a0Sharing Computer\u00a0to make sure all of the computers are “alive” (at least in the TCP\/IP sense). NOTE!\u00a0You will not be able to ping your ISP or any Internet address from your Sharing Clients until you install your Sharing software.\u00a0This is because they are on separate subnets and require the Sharing software to route (or move) data between the subnets. To do this, go to the Windows\u00a0Start\u00a0button, choose\u00a0Programs, then\u00a0MSDOS Prompt. When you get the\u00a0C:\u00a0prompt, type\u00a0ping 127.0.0.1 If everything is ok, you should get the <\/p>\n","protected":false},"author":2,"featured_media":5598,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/posts\/54"}],"collection":[{"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/comments?post=54"}],"version-history":[{"count":1,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/posts\/54\/revisions"}],"predecessor-version":[{"id":7076,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/posts\/54\/revisions\/7076"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/media\/5598"}],"wp:attachment":[{"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/media?parent=54"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/categories?post=54"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/tags?post=54"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}