[CUWiN-Dev] Re: intro & network mapping

[T]

> Hi Tom, and welcome.  I am glad you are having fun exploring the network.
> Let me tell you a couple of tricks.
>
> You can examine the IPv4 routing table like this:
>
> % netstat -rn -f inet


I'm assuming you mean "netstat -r -f inet"...

Routing tables
>
> Internet:
> Destination        Gateway            Flags     Refs
> Use    Mtu  Interface
> default            192.168.0.1        UGS         1   985172      -  sip0
> 10/16              127.0.0.1          UGRS        0        0  33192  lo0
> 10.0.10.176        169.254.237.100    UGH1        0        8      -  ath0
> 10.0.145.137       169.254.237.100    UGH1        0       23      -  ath0
> 10.0.177.226       169.254.237.106    UGH1        0        4      -  ath0
> 10.0.178.57        169.254.237.106    UGH1        0        0      -  ath0
> 10.0.178.63        169.254.178.63     UGH1        0     6696      -  ath0
> 10.0.186.29/32     link#1             UC          0        0      -  ath0
> 10.0.237.65        169.254.237.100    UGH1        0     1634      -  ath0
> 10.0.237.68        169.254.237.106    UGH1        0       97      -  ath0
> 10.0.237.70        169.254.237.106    UGH1        0       17      -  ath0
> 10.0.237.100       169.254.237.100    UGH1        0     5178      -  ath0
> 10.0.237.106       169.254.237.106    UGH1        0       44      -  ath0
> 10.0.237.108       169.254.237.100    UGH1        0     2565      -  ath0
> 10.0.249.238       169.254.237.100    UGH1        0      100      -  ath0
> *snip snip*
>
> The list of 10/16 destinations in the routing table is about as complete
> a list of nodes as you can get.


So one question is how often does hslsd update the routing table? Quite a
few nodes are listed by netstat which I haven't been able to reach in any
way.


You can find a bit more information in /var/db/linkstates.  The routing
> daemon, hslsd, periodically writes all known linkstates (the condition
> of router->router links) to that file.


Awesome, there's plenty for me to pore through here. Two questions that come
up right off the bat though are given a line like the following:

4-ref foreign router lsa interface 10.0.237.100 type ptmp masklen 32 index 1
neighbor 10.0.186.29 seqno 2216760 flags 0x1<UP> metrics [(etx, 386)]

Is the number after etx the calculated distance/signal strength metric? My
other question is if the "neighbor 10.0.186.29" part means that the two
nodes are "directly" connected (i.e. no hops between the two)?

Thanks!

~Tom
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