Re: AW: scp, ssh dont work with zcip

It looks from your tcpdump that your computer is using the pan0 
interface when trying to send packets to 139.23.33.13.  I would guess 
that pan0 is the wrong interface for 139.23.33.13 because there are no 
ARP replies.

 > before starting zcip I can ping the nameserver (139.23.x.y),
 > afterwards I cannot ping anymore.

Your routing table is probably being changed somehow when you turn on 
zcip.  Try comparing your routing table before and after zcip is run 
(use route -n).

- aidan


Kutschenreuter Matthias wrote:
> Thanks for your fast replies!
>  
>  > I use zcip in my wireless ad-hoc network.
> 
>>>it assignes an IP address, detects collisions correctly. each device 
>>>can ping all others in the end, upnp applications work also fine.
>>> 
>>>but I observed the side effect, that ssh and scp
>>>work no longer, once zcip has been started.
>>>sometimes it works, but takes 10 minutes until I am
>>>ask to enter the password (without zcip it's only 2 seconds).
>>> 
>>>Is this a known problem ?
>>> 
>>>Thanks for any hints, Matthias
>>
>>There may be problems with host name lookup.
>>Either because /etc/resolv.conf contains a nameserver that you cannot
>>reach when using zcip (because of link local address) or that your 
> 
> that's it !!
> before starting zcip I can ping the nameserver (139.23.x.y), afterwards I
> cannot ping anymore.
> 
> 
> I have 2 questions:
> 1.) Is it possible to have an eth0 (139.23...) and a wireless interface pan0
> 
> (zcip - 169.254....) and to communicate on both ?
> 2.) How can I scp/ssh on (zcip - 169.254..)-links (without eth0)? 
> I deleted the nameserver entries in /etc/resolv.conf and 
> extended /etc/hosts on both machines as you said. I booted again, but still
> ssh/scp wasnt working. 
> 
> I made to tcpdumps, the first tcpdump for scp (from europa1 to laptop1) 
> trial after zcip started:
> 
> tcpdump: listening on pan0
> 15:32:37.179431 europa1.filenet-nch > laptop1.ssh: S
> 1515684969:1515684969(0) win 5840 <mss 1460,sackOK,timestamp 57803
> 0,nop,wscale 0> (DF) 
> 15:32:37.222250 laptop1.ssh > europa1.filenet-nch: S
> 2182778357:2182778357(0) ack 1515684970 win 5792 <mss 1460,sackOK,timestamp
> 230622 57803,nop,wscale 0> (DF) 
> 15:32:37.222304 europa1.filenet-nch > laptop1.ssh: . ack 1 win 5840
> <nop,nop,timestamp 57808 230622> (DF) 
> 15:32:37.280262 laptop1.ssh > europa1.filenet-nch: P 1:24(23) ack 1 win 5792
> <nop,nop,timestamp 230628 57808> (DF) 
> 15:32:37.280672 europa1.filenet-nch > laptop1.ssh: . ack 24 win 5840
> <nop,nop,timestamp 57814 230628> (DF) 
> 15:32:37.281052 europa1.filenet-nch > laptop1.ssh: P 1:23(22) ack 24 win
> 5840 <nop,nop,timestamp 57814 230628> (DF) 
> 15:32:37.290096 arp who-has 139.23.33.14 tell europa1 15:32:37.336397
> laptop1.ssh > europa1.filenet-nch: . ack 23 win 5792 <nop,nop,timestamp
> 230634 57814> (DF) 
> 15:32:37.367529 arp who-has 139.23.33.14 tell laptop1 15:32:38.280236 arp
> who-has 139.23.33.14 tell europa1 15:32:38.333714 arp who-has 139.23.33.14
> tell laptop1 15:32:39.280239 arp who-has 139.23.33.14 tell europa1 
> 15:32:39.338639 arp who-has 139.23.33.14 tell laptop1 
> 15:32:42.300307 arp who-has 139.23.33.13 tell europa1 
> 15:32:42.335137 arp who-has 139.23.33.13 tell laptop1 
> 15:32:43.300236 arp who-has 139.23.33.13 tell europa1 
> 15:32:43.338383 arp who-has 139.23.33.13 tell laptop1 ....
> 
> 
> second differs, after deleting the nameserver entries in /etc/resolv.conf ;
> searches still for the deleted nameserver (could be due to my SUSE-linux-
> configurations):
> 
> 5840 <mss 1460,sackOK,timestamp 36157 0,nop,wscale 0> (DF) 
> 15:14:25.758897 laptop1.ssh > europa1.filenet-nch: S
> 1020837111:1020837111(0) ack 358895798 win 5792 <mss 1460,sackOK,timestamp
> 121479 36157,nop,wscale 0> (DF) 
> 15:14:25.758949 europa1.filenet-nch > laptop1.ssh: . ack 1 win 5840
> <nop,nop,timestamp 36162 121479> (DF) 
> 15:14:25.816963 laptop1.ssh > europa1.filenet-nch: P 1:24(23) ack 1 win 5792
> <nop,nop,timestamp 121485 36162> (DF) 
> 15:14:25.817365 europa1.filenet-nch > laptop1.ssh: . ack 24 win 5840
> <nop,nop,timestamp 36168 121485> (DF) 
> 15:14:25.817744 europa1.filenet-nch > laptop1.ssh: P 1:23(22) ack 24 win
> 5840 <nop,nop,timestamp 36168 121485> (DF) 
> 15:14:25.880571 laptop1.ssh > europa1.filenet-nch: . ack 23 win 5792
> <nop,nop,timestamp 121492 36168> (DF) 15:14:25.880619 europa1.filenet-nch >
> laptop1.ssh: P 23:559(536) ack 24 win 5840 <nop,nop,timestamp 36174 121492>
> (DF) 
> 15:14:25.885880 arp who-has 139.23.33.14 tell laptop1 
> 15:14:26.008059 laptop1.ssh > europa1.filenet-nch: . ack 559 win 6432
> <nop,nop,timestamp 121504 36174> (DF) 15:14:26.895386 arp who-has
> 139.23.33.14 tell laptop1 
> 15:14:27.886571 arp who-has 139.23.33.14 tell laptop1 
> 15:14:30.893872 arp who-has 139.23.33.13 tell laptop1 
> 15:14:31.896324 arp who-has 139.23.33.13 tell laptop1 
> 15:14:32.906251 arp who-has 139.23.33.13 tell laptop1 
> 15:14:35.907718 arp who-has 139.23.33.14 tell laptop1 ...
> 
> 
> 
> 
> 
> 
> 



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