说句良心话，华三都搞不定的问题，巨巨给你解决了，才只是帮助争取一下勤工助学的报酬。。。
-- "Across the Great Wall we can reach every corner in the world <http://yuex.in/image/first_email_of_china.jpg>" 在 2016年4月20日 下午1:25，Justin Wong <[email protected]>写道： > 抓住个滥用ARP的现行 > > -- > Justin Wong > > > > On Wed, Apr 20, 2016, at 13:24, Sam Stoelinga wrote: > > 你可以试试分配IP后，保证IP不会被别人抢了，通过不停的发ARP broadcast。 > > arping -I enp0s25 -U -b 166.111.144.152 > > 166.111.144.152 should be IP that the dhcp server gave you. > > 2016-04-19 16:11 GMT+08:00 Wang Shanker <[email protected]>: > > 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. > > -- > > --- > 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. > > > > -- > > --- > 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.
