Topic: [TCP] Who can explain. @佛州华人论坛:佛州枫下论坛 The Rolia Forum of Florida

工作学习 / 专业技术讨论 / [TCP] Who can explain. -647i(流浪的步行万里); 2006-6-7 {1653} (#3016060@0)

should be one of the peer port on the route, i guess. -canadiantire(轮胎-cui bono?); 2006-6-7 (#3016107@0)

10.10.0.0 255.255.255.0 10.10.0.117 10.10.0.117 20 ? what is the meaning of that? -iwantcar(流浪的EnjoyStudying); 2006-6-7 (#3016116@0)

the mac address of 10.10.0.10 and 10.10.0.24 are from cisco. -647i(流浪的步行万里); 2006-6-7 (#3016199@0)
it could be a route redirect configured on your 10.10.0.10 gateway -shapei(沙皮狗); 2006-6-7 (#3016256@0)

Let's say A is 10.10.0.10 and B is 10.10.0.24.Your default gateway is A. So the packets are sent from your machine to A. And 10.10.6.0/24 is connected to B instead of A, then A will redirect the packets to B. In this case, it is B which will reply with a TTL expired message but not A because A, B and your machine are on the same LAN. B is the best gateway to get to your destination. That's the reason why you see B in the first hop instead of A. -secfan(WhoAmI?); 2006-6-9 {403} (#3019299@0)

IF router A forward packet to B, A is a hop, ttl ++. IF router A redirect route to B, routing table in host shall update - A host entry shall be seen in RT. -diresu(CarPool); 2006-6-9 (#3019438@0)

ping 10.10.0.10, ping 10.10.0.24; arp -a 10和24说不定是同一个机器？ -holdon(again); 2006-6-7 (#3016289@0)

10.10.0.10 is logical address. 10.10.0.24 is physical address -diresu(CarPool); 2006-6-8 (#3017176@0)
there are 2 scenarios that will resault to your trace. 1. you are connecting to a layer 3 device configured with hsrp or vrrp,in this case 10.10.0.10 is your layer 3 (router) device's physical address and 10.10.0.24 is the logical address of the hsrp or vrrp.

2. 10.10.0.24 is the interface address of your connected router, the routers learns the destination network 10.10.6.1 from interface 10.10.0.24. -coolj(酷不起来); 2006-6-8 {282} (#3017236@0)

coolj是真正的高手。不过我一点都不明白他在说什么。所以结论是如果你需要别人解释，就是解释了你也照样不明白。 -holdon(again); 2006-6-8 (#3017405@0)

Me neigher. Yet, direction is given: new terms need to study on. -647i(流浪的步行万里); 2006-6-8 (#3017520@0)
高手，不是拉。骗吃骗喝而已 -coolj(酷不起来); 2006-6-8 (#3018921@0)

By my understanding 1. the two ip address are internally in two different layer, can be both be accessed, with different priority. 2. the router use dymamic instead of statitic, at my PC. it is static route tableThanks, i will search keyword "hsrp" and "vrrp" to understand what u r saying. -647i(流浪的步行万里); 2006-6-8 {82} (#3017515@0)

Could be ICMP redirect. Does not like HSRP as it makes more sense to config the virtual IP as the default GW -mikesmith(老猫); 2006-6-9 (#3020446@0)

it make sense. Don't know how to turn debug on when do ping? -647i(流浪的步行万里); 2006-6-9 (#3020462@0)

if your company out sourced it, you may not want to touch it.... there are syslogs -mikesmith(老猫); 2006-6-9 (#3020498@0)

公司里网络一出问题就的找那个“什么都不懂”（大家都这么说）的manager, 过一会儿网络就好了。 -647i(流浪的步行万里); 2006-6-9 (#3020509@0)

Thanks. I dare not accept it. i am just a 3-leg cat.... So many DX's around that I admire.... -mikesmith(老猫); 2006-6-9 (#3020506@0)

actually you can see the icmp redirect packet on your host machine,by the way, HSRP or no matter what kind of redundant technology is transparent to the client, no difference as a single router from the view of any host machine -shapei(沙皮狗); 2006-6-9 {160} (#3020823@0)
of cause the gateway will be configured with the virtual address, but when you trace, it will hit the hsrp active router's physical address. -coolj(酷不起来); 2006-6-10 (#3021931@0)

easy to tell.... ping both address and use "arp -a".... the mac address of virtual IP is different.... -mikesmith(老猫); 2006-6-10 (#3022155@0)
Exactly... So it does not make sense that you say 10.10.0.10 is a physical address.... -mikesmith(老猫); 2006-6-10 (#3022166@0)

excuse my typo, i meant it vise versa. if you truly understand the technology, you should of understood what i said. okay, let me rephrase the sentence,just so that people like you won’t have the chance to take advantage of my typo.
10.10.0.24 is the physical address of the hsrp or vrrp active router, 10.10.0.10 is the hsrp or vrrp's logical address. -coolj(酷不起来); 2006-6-10 {203} (#3022197@0)

can't judge by what his thought, but by his action... you may have the best intention, with wrong expression, will only leave a bad impression -mikesmith(老猫); 2006-6-10 (#3022463@0)

In the beginning I wanted to leave you some face by NOT replying to your msg... Not that you did not want it, what can I do? LOL -mikesmith(老猫); 2006-6-11 (#3022804@0)

you wanted to leave ME some face? you got to be _f***kin_ kidding me. what can you do? well, by stop whine like a bitch would be a good start. you'll be treated like a bitch if you continue to act like one. -coolj(酷不起来); 2006-6-11 (#3023081@0)
do you honestly believe 我需要你个sb来leave me face?hahahaha....wake up, don;t think that high of yourself, md差点儿没被你笑死 -coolj(酷不起来); 2006-6-11 (#3023108@0)

Are you a man or what? if the only thing you can say is "f..k" "sh.t", you just deserve it. -mikesmith(老猫); 2006-6-11 (#3023306@0)

i'm not only a man, i am the man. i deserve a lot of things more than you can ever dream of. -coolj(酷不起来); 2006-6-11 (#3023749@0)

here is more output: the two ip use different MAC, ey are all from CISCO(by checking MAC vendor code) 老猫 may be right. -647i(流浪的步行万里); 2006-6-11 {3519} (#3023147@0)

and I was told, that internal network (10.10.x.x) and internet access use different line(path). I guess, 10.10.0.10 is by default set for inetnal VPN netowrk, 10.10.0.24 is for inetnet access from this location. -647i(流浪的步行万里); 2006-6-11 (#3023150@0)
just for the record and not misleading anyone that fllowed this topic, "mikesmith(老猫)" is wrong. -coolj(酷不起来); 2006-6-12 (#3024290@0)

@Florida