这么搞也可以防止 arp 攻击。 > 在 2016年4月19日,16:10,Justin Wong <[email protected]> 写道: > > 打开DHCP snooping可以禁止手动设置IP,ARP攻击怎么防我还真不知道 > > -- > Justin Wong > > On Tue, Apr 19, 2016, at 16:09, 杨海宇 wrote: >> 在 2016年4月19日星期二 UTC+8下午4:03:26,Justin Wong写道: >>> 难道说因为 IP 不够分引起了一些人不爽所以发起 ARP 攻击抢 IP? >>> >>> -- >>> Justin Wong >>> >>> On Tue, Apr 19, 2016, at 16:01, Wang Shanker wrote: >>>> 不会,如果 ip 分光了, dhcp 服务器会拒绝继续分配 ip 地址,不会出现时断时续的问题。 >>>> >>>> 发自我的 iPhone >>>> >>>>> 在 2016年4月19日,15:59,杨海宇 <[email protected]> 写道: >>>>> >>>>> 有同学觉得是ip地址不够分配了,毕竟我们整个系只有/24一个段。可是如果是ip不够用会是这个现象吗? >>>>> >>>>> >>>>> 在 2016年4月19日星期二 UTC+8下午2:06:19,杨海宇写道: >>>>>> 各位巨巨好, >>>>>> 我是热能系的硕士,潜水N年。现在李兆基大楼网络有很多问题,到网关和同网段ip丢包严重,平均60%。经常性出现ip冲突。因为负责网络的人非常不靠谱,只好找金枪鱼求助,恳请有时间的巨巨来指导一下。 >>>>>> 李兆基大楼现在是机械学院很多系的系馆,包括热能系汽车系训练中心。目前环境是光纤到实验室,实验室自己配置交换机。不同系在不同vlan下面,热能系ip段101.6.62.1/24,汽车系166.111.144.1/24(不确定)。行政上,网络由华三提供的解决方案,出问题应该由大楼物业负责,然而物业的网管师傅水平很渣,只会检查网线和光纤通不通。华三的人也来过,但没有查出什么问题。现在的问题是到网关和同网段ip丢包严重(mtr结果在后面),热能系、汽车系不同实验室都存在相同的问题,应该能排除自己交换机的问题。不知道如果是可供使用的ip不够,是否会出现这个问题? >>>>>> 实验室老板让我看看怎么搞,我说另请高明吧,我实在也不是谦虚。老板说系里决定了,由你负责解决。我当时并没有念诗,所以只好求助网管会的各位巨巨。需要巨巨们到现场看一下环境,排查一下问题。如果需要的话,我会和老板争取一下报酬,通过勤工助学的方式给巨巨一些补贴。 >>>>>> 如果哪位巨巨有时间有兴趣,请联系我:15210582389,微信:yang_hai_yu,email: >>>>>> [email protected] / [email protected] >>>>>> >>>>>> >>>>>> 一些结果: >>>>> >>>>> -- >>>>> >>>>> --- >>>>> You received this message because you are subscribed to the Google Groups >>>>> "TUNA 主邮件列表" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send an >>>>> email to [email protected]. >>>>> To post to this group, send email to [email protected]. >>>>> For more options, visit https://groups.google.com/d/optout. >>>> >>>> -- >>>> >>>> --- >>>> You received this message because you are subscribed to the Google Groups >>>> "TUNA 主邮件列表" group. >>>> To unsubscribe from this group and stop receiving emails from it, send an >>>> email to [email protected]. >>>> To post to this group, send email to [email protected]. >>>> For more options, visit https://groups.google.com/d/optout. >>>> Email had 1 attachment: >>>> + smime.p7s >>>> 3k (application/pkcs7-signature) >> >> 我明天去检查一下arp。 >> 另外,只打开dhcp snooping可以防止arp攻击吗,可以禁止手动设置ip吗? >> >> -- >> >> --- >> You received this message because you are subscribed to the Google Groups >> "TUNA 主邮件列表" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. > > -- > > --- > You received this message because you are subscribed to the Google Groups > "TUNA 主邮件列表" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > For more options, visit https://groups.google.com/d/optout.
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smime.p7s
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