Monday, September 05, 2005

arp en la linea

> could someone tell me if this is being originated in my cablecom modem or in my wrt54g access point http://pastebin.com/355639
is an ARP war
jamming my connection
and i dont really understand why, i just saw it via ethereal
alejo: 84.72.224.1 dont happen to be your gateway?
sure, but im just connecting AP to cablecom modem and boom
nothing manual
its just an auomatic thing
thats why im so surprised
maybe i should could cablecome to ask to clean the line...but first i want to understando why that?
let me rephrase, is 84.72.238.133 your AP/router or your ISP gateway?
err, I mean 84.72.224.1
its the ip of my provider
well the ip i get
ifconfig
eth1 Link encap:Ethernet HWaddr 00:0D:60:8A:57:E0
inet addr:84.72.238.133 Bcast:255.255.255.255 Mask:255.255.240.0
mmmh scanning like this is somewhat strange, when you launch a tool like ettercap, it will ARP scan the whole subnet to display IP that are up
Looks totally normal to me
that's arp request for other customers ?
Obviously you've never watched a cable modem much. Seems to be an artifact of their internal network & their filtering methods
I've seen the same on 2 other residential cable nets. Lots of arp floating around. Doesn't mean anything.
* matth_ never had a public internet access
dragorn> the problem is that i cannot use the AP anymore, it get completely jammed
You'll notice most are .1 arping for others. It's the central router looking for customers.
Well, you shouldn't be hooking a bridging AP raw into the cable modem
its set to factory defaults
no AP bridging at all..
thats the wierd part
If it's set to factory defaults and you slapped it into your cable modem
then it's bridging.
thats what APs do.
If those arps are jamming up your wireless, then you're bridging the cable network to the 802.11
i have tested 5 diff firmwares today and i see the same thing
freifunk, dd-wrt, ewrt the linksys one and one taylored using ewrt
alejo: so you're saying there's no NAT involved? the wireless network is "directly" connected to your cable modem?
my friend did that
yes
on DSL... his provider gave 3 IPs via DHCP
really ghetto.
that's why it's not working- your cable co only gives you one IP (most likely)
eventually it had the same problem.
alejo: well, dont do that :}
but this thing was working fine before..
uhmm
so? it's not working now
sheisse
)
well directly in the ethernet card yes..but no via the AP
you're better off seperating the wireless network with your public IP's network
for instance a NAT router
if most of what we just said goes over your head, stick with the factory firmware
I'ma go buy some more cheapass FRS radios
;)
* TMS just bought a gigabit switch
jdhutchin1> well i get some points, thanks all for the comments. )