From 9a08dfe75496946d1e2e790df1dcfb5c3364e330 Mon Sep 17 00:00:00 2001 From: Peng Hailin <unisko@gmail.com> Date: Fri, 30 Aug 2019 14:52:01 +0800 Subject: [PATCH] Update d05-IP-Addressing.md --- d05-IP-Addressing.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/d05-IP-Addressing.md b/d05-IP-Addressing.md index 53aba64..194893a 100644 --- a/d05-IP-Addressing.md +++ b/d05-IP-Addressing.md @@ -221,7 +221,7 @@ IP 地址分配的规则有:**网络上的每个地址,都要是其主机所 `0000 0001 = 1` -`0111 1111 = 126` +`0111 1111 = 127` **在网络中,是不可以有全`0`地址的**。在加入其它三个`8`位二进制数后,就可以看到`A`类地址的全貌了。就像下面的那样。