$conf, $time;
    
    $_uid = user_token_get_do();
    
    empty($_uid) and user_token_clear(); // 退出登录
    
    return $_uid;
}

// 用户
function user_token_get_do()
{
    global $conf, $time, $ip, $useragent;
    $token = param($conf['cookie_pre'] . 'token');
    
    if (empty($token)) return FALSE;
    $tokenkey = md5(xn_key());
    $s = xn_decrypt($token, $tokenkey);
    if (empty($s)) return FALSE;
    $arr = explode("\t", $s);
    if (count($arr) != 5) return FALSE;
    list($_ip, $_time, $_uid, $_pwd, $ua_md5) = $arr;
    if (array_value($conf, 'login_ip') && $ip != $_ip) return FALSE;
    if (array_value($conf, 'login_ua') && md5($useragent) != $ua_md5) return FALSE;
    $_user = user_read($_uid);
    if (empty($_user)) return FALSE;
    if (array_value($conf, 'login_only') && $_user['login_date'] != $_time) return FALSE;
    // 密码是否被修改
    if (md5($_user['password']) != $_pwd) return FALSE;
    
    return $_uid;
}

// 设置 token，防止 sid 过期后被删除
function user_token_set($uid)
{
    global $conf, $time;
    if (empty($uid)) return '';
    
    $token = user_token_gen($uid);
    
    setcookie($conf['cookie_pre'] . 'token', $token, $time + 86400000, $conf['cookie_path'], $conf['cookie_domain'], '', TRUE);
    
    return $token;
}

function user_token_clear()
{
    global $conf, $time;
    setcookie($conf['cookie_pre'] . 'token', '', $time - 8640000, $conf['cookie_path'], $conf['cookie_domain'], '', TRUE);
    
}

function user_token_gen($uid)
{
    global $conf, $time, $ip, $useragent;
    $key = 'user_token' . $uid;
    static $cache = array();
    if (isset($cache[$key])) return $cache[$key];
    
    $user = user_read($uid);
    $pwd = md5($user['password']);
    $ua_md5 = md5($useragent);
    $tokenkey = md5(xn_key());
    $cache[$key] = xn_encrypt("$ip	$time	$uid	$pwd	$ua_md5", $tokenkey);
    
    return $cache[$key];
}

// 前台登录验证
function user_login_check()
{
    global $user;
    
    empty($user) and http_location(url('user-login'));
    
}

// 获取用户来路
function user_http_referer()
{
    global $conf;
    
    $referer = param('referer'); // 优先从参数获取 | GET is priority
    empty($referer) and $referer = array_value($_SERVER, 'HTTP_REFERER', '');
    $referer = str_replace(array('\"', '"', '<', '>', ' ', '*', "\t", "\r", "\n"), '', $referer); // 干掉特殊字符 strip special chars
    if (
        !preg_match('#^(http|https)://[\w\-=/\.]+/[\w\-=.%\#?]*$#is', $referer)
        || FALSE !== strpos($referer, url('user-login'))
        || FALSE !== strpos($referer, url('user-logout'))
        || FALSE !== strpos($referer, url('user-create'))
        || FALSE !== strpos($referer, url('user-setpw'))
        || FALSE !== strpos($referer, url('user-resetpw_complete'))
    ) {
        $referer = $conf['path'];
    }
    
    return $referer;
}

function user_auth_check($token)
{
    global $time, $ip;
    
    $auth = param(2);
    $s = xn_decrypt($auth);
    empty($s) and message(-1, lang('decrypt_failed'));
    $arr = explode('-', $s);
    count($arr) != 4 and message(-1, lang('encrypt_failed'));
    list($_ip, $_time, $_uid, $_pwd) = $arr;
    $_user = user_read($_uid);
    empty($_user) and message(-1, lang('user_not_exists'));
    $time - $_time > 3600 and message(-1, lang('link_has_expired'));
    
    return $_user;
}




?>��权限没有，则隐藏
function forum_list_access_filter($forumlist, $gid, $allow = 'allowread')
{
    global $grouplist;

    

    if (empty($forumlist)) return array();

    

    if (1 == $gid) return $forumlist;

    $forumlist_filter = $forumlist;
    $group = $grouplist[$gid];

    

    foreach ($forumlist_filter as $fid => $forum) {

        

        if (empty($forum['accesson']) && empty($group[$allow]) || !empty($forum['accesson']) && empty($forum['accesslist'][$gid][$allow])) {

            

            unset($forumlist_filter[$fid]);
            
            
        }
        unset($forumlist_filter[$fid]['accesslist']);
        
    }
    
    return $forumlist_filter;
}

function forum_filter_moduid($moduids)
{
    $moduids = trim($moduids);
    if (empty($moduids)) return '';
    $arr = explode(',', $moduids);
    $r = array();
    foreach ($arr as $_uid) {
        $_uid = intval($_uid);
        $_user = user_read($_uid);
        if (empty($_user)) continue;
        if ($_user['gid'] > 4) continue;
        $r[] = $_uid;
    }
    return implode(',', $r);
}

function forum_safe_info($forum)
{
    
    //unset($forum['moduids']);
    
    return $forum;
}

function forum_filter($forumlist)
{
    
    foreach ($forumlist as &$val) {
        unset($val['brief'], $val['announcement'], $val['seo_title'], $val['seo_keywords'], $val['create_date_fmt'], $val['icon_url'], $val['modlist']);
        
    }
    
    return $forumlist;
}

function forum_format_url($forum)
{
    global $conf;
    
    if (0 == $forum['category']) {
        // 列表URL
        
        $url = url('list-' . $forum['fid'], '', FALSE);
        
    } elseif (1 == $forum['category']) {
        // 频道
        
        $url = url('category-' . $forum['fid'], '', FALSE);
        
    } elseif (2 == $forum['category']) {
        // 单页
        
        $url = url('read-' . trim($forum['brief']), '', FALSE);
        
    }
    
if ($conf['url_rewrite_on'] > 1 && $forum['well_alias']) {
    if (0 == $forum['category'] || 1 == $forum['category']) {
        $url = url($forum['well_alias'], '', FALSE);
    } elseif (2 == $forum['category']) {
        // 单页
        $url = ($forum['threads'] && $forum['brief']) ? url($forum['well_alias'] . '-' . trim($forum['brief']), '', FALSE) : url($forum['well_alias'], '', FALSE);
    }
}

    return $url;
}


function well_forum_alias()
{
    $forumlist = forum_list_cache();
    if (empty($forumlist)) return '';

    $key = 'forum-alias';
    static $cache = array();
    if (isset($cache[$key])) return $cache[$key];
    
    $cache[$key] = array();
    foreach ($forumlist as $val) {
        if ($val['well_alias']) $cache[$key][$val['fid']] = $val['well_alias'];
    }

    return array_flip($cache[$key]);
}

function well_forum_alias_cache()
{
    global $conf;
    $key = 'forum-alias-cache';
    static $cache = array(); // 用静态变量只能在当前 request 生命周期缓存，跨进程需要再加一层缓存：redis/memcached/xcache/apc
    if (isset($cache[$key])) return $cache[$key];
    if ('mysql' == $conf['cache']['type']) {
        $arr = well_forum_alias();
    } else {
        $arr = cache_get($key);
        if (NULL === $arr) {
            $arr = well_forum_alias();
            !empty($arr) AND cache_set($key, $arr);
        }
    }
    $cache[$key] = empty($arr) ? '' : $arr;
    return $cache[$key];
}



?>return FALSE;
    
    $r = well_tag_thread__update(array('id' => $id), $update);
    
    return $r;
}

function well_tag_thread_find($tagid, $page, $pagesize)
{
    
    $arr = well_tag_thread__find(array('tagid' => $tagid), array('id' => -1), $page, $pagesize);
    
    return $arr;
}

function well_tag_thread_find_by_tid($tid, $page, $pagesize)
{
    
    $arr = well_tag_thread__find(array('tid' => $tid), array(), $page, $pagesize);
    
    return $arr;
}




?><!DOCTYPE html><html lang="zh-cn"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1" /><meta http-equiv="Cache-Control" content="no-transform" /><meta http-equiv="Cache-Control" content="no-siteapp" /><meta name="viewport"
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<div class="fzithome-com breadcrumb2 container-w"><div id="b" class="cl"><div class="fzithome-com fl"><i class="iconfont icon-home"></i><a href="/">首页</a>&nbsp;>&nbsp;
<a href="/biancheng">编程之家</a><a href="/biancheng/1728636246a815539.html" title="首页">【H3C】pc+交换机+路由器+连外网</a></div></div></div><div class="fzithome-com main container-w cl"><div class="fzithome-com mainl"><div class="fzithome-com art-post"><div class="fzithome-com title"><h1>【H3C】pc+交换机+路由器+连外网</h1><div class="fzithome-com info"><span><a href="/biancheng"><i class="iconfont icon-crossborder-fill"></i>编程之家</a></span><span><i class="iconfont icon-browse"></i>74</span><span><i class="iconfont icon-message-fill"></i>0</span><span>
                        更新时间：2026-04-09 22:33:40</span></div></div><div class="fzithome-com art-content"><article class="single-post"><div class="fzithome-com entry"><path stroke-linecap="round" d="M5,0 0,2.5 5,5z"  style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0);"></path>
                    </svg>
                    <h2>实验要求</h2> 
<p>① pc1 是固定ip，pc2 、pc6自动获取<br> ② pc机，能联通联通外网<br> </p> 
<h2>实验步骤</h2> 
<h3>1、pc1 设置静态IP 两个路由器设ip</h3> 
<pre><code ><span >[</span>R<span >]</span>INT g0<span >/</span><span >0</span>
<span >[</span>R<span >-</span>GigabitEthernet0<span >/</span><span >0</span><span >]</span>ip ad <span >100.10</span><span >.10</span><span >.2</span> <span >24</span>
<span >[</span>R<span >-</span>GigabitEthernet0<span >/</span><span >0</span><span >]</span>INT g0<span >/</span><span >1</span>
<span >[</span>R<span >-</span>GigabitEthernet0<span >/</span><span >1</span><span >]</span>ip ad <span >10.10</span><span >.10</span><span >.2</span> <span >24</span>

<span >[</span>R联通<span >]</span><span >int</span> g0<span >/</span><span >0</span>
<span >[</span>R联通<span >-</span>GigabitEthernet0<span >/</span><span >0</span><span >]</span>ip a <span >10.10</span><span >.10</span><span >.2</span> <span >24</span>
<span >[</span>R联通<span >]</span><span >int</span> LoopBack <span >6</span>
<span >[</span>R联通<span >-</span>LoopBack6<span >]</span>ip ad <span >6.6</span><span >.6</span><span >.6</span> <span >24</span>
</code></pre> 
<h3>2、主交换</h3> 
<h4>2.1 交换机上联口 改rount 并ip</h4> 
<pre><code ><span >[</span>SW<span >]</span>in g1<span >/</span><span >0</span><span >/</span><span >1</span>
<span >[</span>SW<span >-</span>GigabitEthernet1<span >/</span><span >0</span><span >/</span><span >1</span><span >]</span>port link<span >-</span>mode r
<span >[</span>SW<span >-</span>GigabitEthernet1<span >/</span><span >0</span><span >/</span><span >1</span><span >]</span>ip a <span >100.10</span><span >.10</span><span >.1</span> <span >24</span>
</code></pre> 
<h4>2.2 交换机起vlan 并虚拟口 +ip</h4> 
<pre><code ><span >[</span>SW<span >-</span>Vlan<span >-</span>interface20<span >]</span><span >int</span> vlan <span >1</span>
<span >[</span>SW<span >-</span>Vlan</code></pre></div></article></div><div class="fzithome-com info"><div><span>本文发布于:2024-10-11，感谢您对本站的认可！</span></div><div><span>本文链接:</span><a href="https://www.fzithome.com/biancheng/1728636246a815539.html" title="【H3C】pc+交换机+路由器+连外网">https://www.fzithome.com/biancheng/1728636246a815539.html</a></div><div><span>版权声明:本站内容均来自互联网，仅供演示用，请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系，我们将在24小时内删除。</span></div></div><span class="tag"><i class="iconfont icon-discount" style="font-size:12px;font-weight:bold;opacity:.7;">本文标签：</i><a href="/tag/777.html" target="_blank">路由器</a><a href="/tag/274.html" target="_blank">交换机</a><a href="/tag/69802.html" target="_blank">H3C</a><a href="/tag/68723.html" target="_blank">pc</a><a href="/tag/73993.html" target="_blank">连外网</a></span></div><div class="fzithome-com post_comments" id="comments"><div id="comt-respond" class="commentpost"><h4>发布评论
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