[c-nsp] Something like MTR, but forced path

[Ultra]

did you check hping? 

El mar, 18-12-2007 a las 21:01 -0500, Tuc at T-B-O-H.NET escribió:
> > 
> > Tuc at T-B-O-H.NET wrote:
> > 
> > > Problem we have is a small wireless network is basically flat, not
> > > networked. There are 10 pieces of equipment between 2 machines. However,
> > > they are both on the same subnet, so it just looks like it only needs to 
> > > hop once. Instead, it goes from the router, to a client antenna (IP'd),
> > > to an Access Point (IP'd), to a switch (IP'd), to a backhaul (IP'd), to
> > > another backhaul(IP'd)... You get the jist. I basically want to force the
> > > system to believe my path, not what routed networking tells it.
> > 
> > traceroute shows a layer 3 path.  Your client antenna, access point etc. are 
> > bridging - a layer 2 activity.
> > 
> > If you want to 'force' extra hops, you need to have each device decrement the 
> > TTL of forwarded IP datagrams and correctly send ICMP unreachables.
> > 
> > There is some Layer 2 traceroute functionality built in to Cisco kit, useful to 
> > trace paths through a network that may change due to Spanning Tree - but I have 
> > to ask, what are you trying to achieve here?
> > 
> Hi,
> 
> 	Sorry, I think I'm being seriously misunderstood. 
> 
> 	Yes, I understand l3/l2.
> 
> 	I'm not looking for something that will "autodetect the path" via any
> sort of methods. I'm basically looking for something I can run on Unix and
> give me a curses view of IPs I give it to ping at the same time. I was looking
> on this list only because people here tend to either know or use the "kewl tools".
> I found something that sort of does what I want, fping, but it doesn't have the
> display part. Curses MTR bolds the lettering when it has a ping loss which I want
> to catch my eye.
> 
> 	As an FYI, the problem I have is I'm having connection losses between my
> site and the wireless WISP's gateway. I think the packet is getting to the
> backhaul link at the site here, but not to the other end of the backhaul here.
> I want to run a set of pings basically that are :
> 
> 1 - My router
> 2 - My antenna
> 3 - His AP at SiteC
> 4 - His switch at SiteC
> 5 - His BH at SiteC
> 6 - His BH at SiteB2C
> 7 - His switch at SiteB
> 8 - His BH at SiteB2A
> 9 - His BH at SiteA2B
> 10- His switch at SiteA
> 11- His router at SiteA
> 
> 	I want something formalized since sending pings that just show
> a loss somewhere in the middle don't mean anything.
> 
> 		Thanks, Tuc
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