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Date:      Fri, 17 Aug 2001 18:53:04 +0000
From:      Jean-Paul Beconne <jpbeconne@free.fr>
To:        freebsd-questions@FreeBSD.ORG
Subject:   [LONG] network problem on laptop
Message-ID:  <3B7D6810.AF076EF3@free.fr>

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Hi,
I have a problem in configuring network between FreeBSD boxes.
The first machine (A) is a laptop with Netgear FA410 ethernet card
(PCMCIA) and the second machine (B) is a desktop with D-Link 530TX
ethernet card.
A can boot on win95 and FreeBSD
B can boot on Win2k, FreeBSD and Linux
B is connected to Internet with ppp and has natd running on it.

When A is on Win95 and B on FreeBSD, everything is working.
When A is on FreeBSD and B on FreeBSD, I can ping B from A but I can't
ping A from B.
I have the same problem if A is on FreeBSD and B on win2k or linux.
I actually don't know if the problem come from the route or from the
hardware.
You can find below some informations about the configuration.
Thanks for any help.
J-P.
_______________________________________________________
A configuration
ifconfig -a :
lp0: flags=8810<POINTOPOINT,SIMPLEX,MULTICAST> mtu 1500
sl0: flags=c010<POINTOPOINT,LINK2,MULTICAST> mtu 552
ppp0: flags=8010<POINTOPOINT,MULTICAST> mtu 1500
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
	inet6 fe80::1%lo0 prefixlen 64 scopeid 0x4 
	inet6 ::1 prefixlen 128 
	inet 127.0.0.1 netmask 0xff000000 
gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
gif1: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
gif2: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
gif3: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
stf0: flags=8000<MULTICAST> mtu 1280
faith0: flags=8000<MULTICAST> mtu 1500
ed0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
	inet 10.0.0.2 netmask 0xffff0000 broadcast 10.0.255.255
	inet6 fe80::3d4:ffff:fe03:20%ed0 prefixlen 64 scopeid 0xb 
	ether 01:d4:ff:03:00:20

arp -a :
alceste (10.0.0.1) at 0:50:ba:f2:98:c8 [ethernet]

netstat -nr :
Routing tables

Internet:
Destination        Gateway            Flags      Netif Expire
10/16              link#11            UC          ed0 =>
10.0.0.1           0:50:ba:f2:98:c8   UHLW        ed0   1044
127.0.0.1          127.0.0.1          UH          lo0

Internet6:
Destination                       Gateway                      
Flags      Netif Expire
::1                               ::1                          
UH          lo0
fe80::%lo0/64                     fe80::1%lo0                  
Uc          lo0
fe80::%ed0/64                     link#11                      
UC          ed0
ff01::/32                         ::1                          
U           lo0
ff02::%lo0/32                     fe80::1%lo0                  
UC          lo0
ff02::%ed0/32                     link#11                      
UC          ed0

B configuration :
ifconfig -a :
vr0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
	inet6 fe80::250:baff:fef2:98c8%vr0 prefixlen 64 scopeid 0x1 
	inet 10.0.0.1 netmask 0xff000000 broadcast 10.255.255.255
	ether 00:50:ba:f2:98:c8 
	media: autoselect (100baseTX) status: active
	supported media: autoselect 100baseTX <full-duplex> 100baseTX
10baseT/UTP <full-duplex> 10baseT/UTP none
lp0: flags=8810<POINTOPOINT,SIMPLEX,MULTICAST> mtu 1500
sl0: flags=c010<POINTOPOINT,LINK2,MULTICAST> mtu 552
ppp0: flags=8010<POINTOPOINT,MULTICAST> mtu 1500
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
	inet6 fe80::1%lo0 prefixlen 64 scopeid 0x5 
	inet6 ::1 prefixlen 128 
	inet 127.0.0.1 netmask 0xff000000 
gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
	inet6 fe80::250:baff:fef2:98c8%gif0 prefixlen 64 scopeid 0x6 
stf0: flags=8000<MULTICAST> mtu 1280
	inet6 fe80::250:baff:fef2:98c8%stf0 prefixlen 64 scopeid 0x7 
faith0: flags=8000<MULTICAST> mtu 1500

arp -a :
ascentia (10.0.0.2) at 1:d4:ff:3:0:20 [ethernet]

netstat -nr
Routing tables

Internet:
Destination        Gateway            Flags      Netif Expire
10                 link#1             UC          vr0 =>
10.0.0.2           1:d4:ff:3:0:20     UHLW        vr0    827
127.0.0.1          127.0.0.1          UH          lo0

Internet6:
Destination                       Gateway                      
Flags      Netif Expire
::1                               ::1                          
UH          lo0
fe80::%vr0/64                     link#1                       
UC          vr0
fe80::%lo0/64                     fe80::1%lo0                  
Uc          lo0
fe80::%gif0/64                    fe80::250:baff:fef2:98c8%gif0
Uc         gif0
fe80::250:baff:fef2:98c8%gif0     ::1                          
UH          lo0
fe80::%stf0/64                    fe80::250:baff:fef2:98c8%stf0
Uc         stf0
fe80::250:baff:fef2:98c8%stf0     ::1                          
UH          lo0
ff01::/32                         ::1                          
U           lo0
ff02::%vr0/32                     link#1                       
UC          vr0
ff02::%lo0/32                     fe80::1%lo0                  
UC          lo0
ff02::%gif0/32                    fe80::250:baff:fef2:98c8%gif0
UC         gif0
ff02::%stf0/32                    fe80::250:baff:fef2:98c8%stf0
UC         stf0

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