Re: The WEP thing

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Author: Lee Einer
Date:  
To: plug-discuss
Subject: Re: The WEP thing


Craig White wrote:

>On Thu, 2005-02-03 at 21:09 -0700, Lee Einer wrote:
>
>
>>Craig White wrote:
>>
>>
>>
>>>On Thu, 2005-02-03 at 20:16 -0700, Lee Einer wrote:
>>>
>>>
>>>
>>>
>>>>Done. Pinged Mepisbox. No packets returned. Mepisbox pings Mandrakebox
>>>>just fine. Stopping iptables at mepisbox returns message
>>>>
>>>> Aborting iptables load: unknown ruleset, "inactive."
>>>>
>>>>I don't know if that is a good thing or a bad thing. It does not get the
>>>>ping going, though.
>>>>
>>>>I have connectivity through both computers to the router, and through
>>>>the router to the internet. The connection for the Mepis laptop is
>>>>wireless- is this at the root of the issue?
>>>>
>>>>
>>>>
>>>>
>>>----
>>>it might very well be...
>>>
>>>The wireless access point - does it have some security setting on it to
>>>prevent wireless users from accessing other parts of the LAN? - does it
>>>put wireless users in a DMZ ?
>>>
>>>Question if you do (on both machines):
>>>#route -n
>>>Kernel IP routing table
>>>Destination    Gateway         Genmask         Flags Metric Ref  Use
>>>Iface
>>>192.168.0.0    0.0.0.0         255.255.255.0   U     0      0    0 eth0
>>>169.254.0.0    0.0.0.0         255.255.0.0     U     0      0    0 eth0
>>>0.0.0.0        192.168.0.254   0.0.0.0         UG    0      0    0 eth0

>>>
>>>does they look like above?
>>>
>>>
>>>
>>close. They both have the same gateway address, and both can ping it.
>>Line 2 on Mandrake box has different Iface and Genmask -127.0.0.0 and
>>255.0.0.0 respectively. Mepis box has two lines
>>
>>Destination    Gateway        Genmask
>>192.168.0.0    0.0.0.0            255.255.255.0 ath0
>>0.0.0.0             192.168.0.1    0.0.0.0             ath0

>>
>>
>>
>-----
>OK - well let's evaluate my assumptions then...
>
>You have something like a Netgear Wireless Router (I think they use the
>192.168.0.0 network) or perhaps one of the newer Qwest supplied
>Actiontec dsl modem/routers with wireless and your Mandrake box connects
>with a cable to one of the LAN ports and the Mepisbox (your laptop)
>connects to this same router via wireless.
>
>With this assumption (brand accuracy not important), then they are both
>'pinging' the same gateway - 192.168.0.1
>
>With this assumption, from the Mepisbox, you should be able to ping
>192.168.0.100 as well as 192.168.0.1 unless there is a firewall on the
>Mandrakebox. If not, then on the Mandrakebox, type 'iptables -L' and
>post the results
>
>With this assumption, from the Mandrakebox, you should be able to ping
>192.168.0.101 as well as 192.168.0.1 unless there is a firewall on the
>Mepisbox. If not, then on the Mepisbox, type 'iptables -L' and post the
>results
>

This is the case. Here is the output of iptables -L from the Mepisbox-

Chain INPUT (policy DROP)
target     prot opt source               destination         
ACCEPT     all  --  anywhere             anywhere            
ACCEPT     all  --  mepisbox             192.168.0.255       
logaborted  tcp  --  anywhere             anywhere            state RELATED,ESTABLISHED tcp flags:RST/RST 
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED 
ACCEPT     icmp --  anywhere             anywhere            icmp destination-unreachable 
ACCEPT     icmp --  anywhere             anywhere            icmp time-exceeded 
ACCEPT     icmp --  anywhere             anywhere            icmp parameter-problem 
nicfilt    all  --  anywhere             anywhere            
srcfilt    all  --  anywhere             anywhere            


Chain FORWARD (policy DROP)
target     prot opt source               destination         
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED 
ACCEPT     icmp --  anywhere             anywhere            icmp destination-unreachable 
ACCEPT     icmp --  anywhere             anywhere            icmp time-exceeded 
ACCEPT     icmp --  anywhere             anywhere            icmp parameter-problem 
srcfilt    all  --  anywhere             anywhere            


Chain OUTPUT (policy DROP)
target     prot opt source               destination         
ACCEPT     all  --  anywhere             anywhere            
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED 
ACCEPT     icmp --  anywhere             anywhere            icmp destination-unreachable 
ACCEPT     icmp --  anywhere             anywhere            icmp time-exceeded 
ACCEPT     icmp --  anywhere             anywhere            icmp parameter-problem 
s1         all  --  anywhere             anywhere            


Chain f0to1 (3 references)
target     prot opt source               destination         
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:65535 dpts:6881:6889 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:65535 dpt:ipp state NEW 
ACCEPT     udp  --  anywhere             anywhere            udp dpt:ipp 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:microsoft-ds state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:netbios-ns state NEW 
ACCEPT     udp  --  anywhere             anywhere            udp spts:1024:65535 dpt:netbios-ns 
ACCEPT     udp  --  anywhere             anywhere            udp spt:netbios-ns dpt:netbios-ns 
ACCEPT     udp  --  anywhere             anywhere            udp spts:1024:65535 dpt:netbios-dgm 
ACCEPT     udp  --  anywhere             anywhere            udp spt:netbios-dgm dpt:netbios-dgm 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:netbios-ssn state NEW 
ACCEPT     udp  --  anywhere             anywhere            udp spts:1024:65535 dpt:netbios-ssn 
ACCEPT     icmp --  anywhere             anywhere            icmp source-quench 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:65535 dpt:www state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:65535 dpt:webcache state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:65535 dpt:8008 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:65535 dpt:8000 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:65535 dpt:8888 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:65535 dpt:6969 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:65535 dpts:6881:6889 state NEW 
ACCEPT     udp  --  anywhere             anywhere            udp dpts:6970:7170 
ACCEPT     udp  --  anywhere             anywhere            udp spt:netbios-ns dpts:1024:5999 
ACCEPT     udp  --  anywhere             anywhere            udp spt:netbios-ns dpt:netbios-ns 
ACCEPT     udp  --  anywhere             anywhere            udp spt:netbios-dgm dpt:netbios-dgm 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:65535 dpts:1024:65535 state NEW 
ACCEPT     icmp --  anywhere             anywhere            icmp echo-reply 
logdrop    all  --  anywhere             anywhere            


Chain f0to2 (1 references)
target     prot opt source               destination         
logdrop    all  --  anywhere             anywhere            


Chain f1to0 (1 references)
target     prot opt source               destination         
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpts:6881:6889 state NEW 
ACCEPT     udp  --  anywhere             anywhere            udp spt:netbios-ns dpts:1024:65535 
ACCEPT     udp  --  anywhere             anywhere            udp spt:netbios-ns dpt:netbios-ns 
ACCEPT     udp  --  anywhere             anywhere            udp spt:netbios-dgm dpt:netbios-dgm 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:ftp state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:xmpp-client state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpts:6881:6889 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:1863 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:554 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:7070 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:ipp state NEW 
ACCEPT     udp  --  anywhere             anywhere            udp dpt:ipp 
ACCEPT     udp  --  anywhere             anywhere            udp dpt:3478 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:kerberos state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:https state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:imaps state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:3030 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:rsync state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:microsoft-ds state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:gnutella-svc state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:8765 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:8880 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:ssh state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:0:1023 dpt:ssh state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:netbios-ns state NEW 
ACCEPT     udp  --  anywhere             anywhere            udp spts:1024:5999 dpt:netbios-ns 
ACCEPT     udp  --  anywhere             anywhere            udp spt:netbios-ns dpt:netbios-ns 
ACCEPT     udp  --  anywhere             anywhere            udp spts:1024:5999 dpt:netbios-dgm 
ACCEPT     udp  --  anywhere             anywhere            udp spt:netbios-dgm dpt:netbios-dgm 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:netbios-ssn state NEW 
ACCEPT     udp  --  anywhere             anywhere            udp spts:1024:5999 dpt:netbios-ssn 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpts:5190:5193 state NEW 
ACCEPT     udp  --  anywhere             anywhere            udp spts:1024:5999 dpts:5190:5193 
ACCEPT     udp  --  anywhere             anywhere            udp dpts:33434:33600 
ACCEPT     udp  --  anywhere             anywhere            udp dpt:ntp 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:pop3s state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:5050 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:telnet state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpts:5000:5001 state NEW 
ACCEPT     udp  --  anywhere             anywhere            udp spts:1024:5999 dpt:5000 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:dict state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:1723 state NEW 
ACCEPT     gre  --  anywhere             anywhere            
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:whois state NEW 
ACCEPT     udp  --  anywhere             anywhere            udp dpt:43 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:nntp state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:imap2 state NEW 
ACCEPT     udp  --  anywhere             anywhere            udp dpt:imap2 
ACCEPT     udp  --  anywhere             anywhere            udp dpt:4000 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:65535 dpts:1024:65535 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ldap state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:522 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:1503 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:1720 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:1731 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpts:1024:65535 state NEW 
ACCEPT     udp  --  anywhere             anywhere            udp spts:1024:5999 dpts:1024:65535 
ACCEPT     icmp --  anywhere             anywhere            icmp echo-request 
ACCEPT     icmp --  anywhere             anywhere            icmp source-quench 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:smtp state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:domain state NEW 
ACCEPT     udp  --  anywhere             anywhere            udp dpt:domain 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:www state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:webcache state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:8008 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:8000 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:8888 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpts:6660:6669 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:6969 state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp spts:1024:5999 dpt:pop3 state NEW 
logdrop    all  --  anywhere             anywhere            


Chain f1to2 (1 references)
target     prot opt source               destination         
logdrop    all  --  anywhere             anywhere            


Chain f2to0 (1 references)
target     prot opt source               destination         
logdrop    all  --  anywhere             anywhere            


Chain f2to1 (3 references)
target     prot opt source               destination         
logdrop    all  --  anywhere             anywhere            


Chain logaborted (1 references)
target     prot opt source               destination         
logaborted2  all  --  anywhere             anywhere            limit: avg 1/sec burst 10 
LOG        all  --  anywhere             anywhere            limit: avg 2/min burst 1 LOG level warning prefix `LIMITED ' 


Chain logaborted2 (1 references)
target     prot opt source               destination         
LOG        all  --  anywhere             anywhere            LOG level warning tcp-sequence tcp-options ip-options prefix `ABORTED ' 
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED 


Chain logdrop (8 references)
target     prot opt source               destination         
logdrop2   all  --  anywhere             anywhere            


Chain logdrop2 (1 references)
target     prot opt source               destination         
DROP       all  --  anywhere             anywhere            


Chain logreject (0 references)
target     prot opt source               destination         
logreject2  all  --  anywhere             anywhere            


Chain logreject2 (1 references)
target     prot opt source               destination         
REJECT     tcp  --  anywhere             anywhere            reject-with tcp-reset 
REJECT     udp  --  anywhere             anywhere            reject-with icmp-port-unreachable 
DROP       all  --  anywhere             anywhere            


Chain nicfilt (1 references)
target     prot opt source               destination         
RETURN     all  --  anywhere             anywhere            
RETURN     all  --  anywhere             anywhere            
RETURN     all  --  anywhere             anywhere            
logdrop    all  --  anywhere             anywhere            


Chain s0 (1 references)
target     prot opt source               destination         
f0to1      all  --  anywhere             mepisbox            
f0to1      all  --  anywhere             192.168.0.255       
f0to1      all  --  anywhere             mepisbox            
f0to2      all  --  anywhere             12.168.0.100        
logdrop    all  --  anywhere             anywhere            


Chain s1 (1 references)
target     prot opt source               destination         
f1to2      all  --  anywhere             12.168.0.100        
f1to0      all  --  anywhere             anywhere            


Chain s2 (1 references)
target     prot opt source               destination         
f2to1      all  --  anywhere             mepisbox            
f2to1      all  --  anywhere             192.168.0.255       
f2to1      all  --  anywhere             mepisbox            
f2to0      all  --  anywhere             anywhere            


Chain srcfilt (2 references)
target     prot opt source               destination         
s2         all  --  12.168.0.100         anywhere            
s0         all  --  anywhere             anywhere            


The router is a D-Link DI 624. I will be reviewing the manual later in
the morning also. Hope this isn't one of those cases where RTFM would
have been the correct response.

>
>If I am to look at the manual for your specific wireless AP - (to see if
>there is some setting that might prevent wireless from accessing LAN),
>you should let me know the make & model of your wireless AP so I can
>download the manual from the internet
>
>Craig
>
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>


--


Lee Einer
Dos Manos Jewelry
http://www.dosmanosjewelry.com



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