Date: Tue, 19 Aug 2008 16:36:52 +0800 From: Ganbold <ganbold@micom.mng.net> To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Cc: thompsa@FreeBSD.org Subject: possibly bridge related problem Message-ID: <48AA8624.5010206@micom.mng.net>
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Hi,
I have strange network problem on my laptop.
I can't make connection to my desktop(192.168.0.18) from my laptop.
However I can ping to other addresses from my laptop.
I can't ping and make connection to my laptop from my desktop either.
On the laptop I have bridge created at boot time.
When I destroy bridge0 I can ping and make connection to my desktop.
Is this known problem? If not where should I look for the problem?
Or am I doing something wrong?
...
devil# uname -an
FreeBSD devil.micom.mng.net 7.0-STABLE FreeBSD 7.0-STABLE #8: Tue Aug 19
15:29:26 ULAT 2008
tsgan@devil.micom.mng.net:/usr/obj/usr/src/sys/DEVIL i386
devil# ping 192.168.0.1
PING 192.168.0.1 (192.168.0.1): 56 data bytes
64 bytes from 192.168.0.1: icmp_seq=0 ttl=255 time=0.920 ms
64 bytes from 192.168.0.1: icmp_seq=1 ttl=255 time=1.788 ms
64 bytes from 192.168.0.1: icmp_seq=2 ttl=255 time=1.130 ms
^C
--- 192.168.0.1 ping statistics ---
3 packets transmitted, 3 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 0.920/1.279/1.788/0.370 ms
devil# ping 192.168.0.18
PING 192.168.0.18 (192.168.0.18): 56 data bytes
^C
--- 192.168.0.18 ping statistics ---
4 packets transmitted, 0 packets received, 100.0% packet loss
devil# ifconfig -a
bge0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric
0 mtu 1500
options=98<VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM>
ether 00:14:22:fb:32:a6
inet 192.168.0.35 netmask 0xffffff00 broadcast 192.168.0.255
media: Ethernet autoselect (1000baseTX <full-duplex>)
status: active
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
inet 127.0.0.1 netmask 0xff000000
bridge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
1500
ether 00:14:22:fb:32:a6
id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15
maxage 20 holdcnt 6 proto rstp maxaddr 100 timeout 1200
root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0
member: tap0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
ifmaxaddr 0 port 4 priority 128 path cost 2000000
member: bge0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
ifmaxaddr 0 port 1 priority 128 path cost 20000
tap0: flags=8902<BROADCAST,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 00:bd:4b:1b:00:00
tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> metric 0 mtu 1500
inet 192.168.10.34 --> 192.168.10.33 netmask 0xffffffff
Opened by PID 802
devil# kldstat
Id Refs Address Size Name
1 22 0xc0400000 701a64 kernel
2 1 0xc0b02000 5844 if_tap.ko
3 1 0xc0b08000 15524 snd_hda.ko
4 2 0xc0b1e000 52a08 sound.ko
5 2 0xc0b71000 10ebc drm.ko
6 1 0xc0b82000 71c4 i915.ko
7 1 0xc0b8a000 1fe68 kqemu.ko
8 1 0xc0baa000 b8c8 aio.ko
9 1 0xc0bb6000 6b3d0 acpi.ko
10 1 0xc433b000 9000 if_bridge.ko
11 1 0xc4344000 6000 bridgestp.ko
12 2 0xc44c2000 d000 ipfw.ko
13 1 0xc44fb000 4000 ipdivert.ko
14 1 0xc452a000 22000 linux.ko
15 1 0xc45a6000 e000 fuse.ko
devil# more /etc/rc.conf
cloned_interfaces="bridge0 tap0"
firewall_enable="YES"
firewall_quiet="NO"
firewall_script="/etc/rc.firewall"
firewall_type="open"
gateway_enable="YES"
hostname="devil.micom.mng.net"
ifconfig_bge0="DHCP"
ifconfig_bridge0="addm bge0 addm tap0 up"
inetd_enable="YES"
natd_enable="YES" # Enable natd (if firewall_enable == YES).
natd_interface="bge0" # Public interface or IPaddress to use.
openvpn_enable="YES"
openvpn_if="tun"
devil# ipfw show
00050 224 19723 divert 8668 ip4 from any to any via bge0
00100 4 200 allow ip from any to any via lo0
00200 0 0 deny ip from any to 127.0.0.0/8
00300 0 0 deny ip from 127.0.0.0/8 to any
65000 383 33187 allow ip from any to any
65535 0 0 deny ip from any to any
devil# netstat -rn
Routing tables
Internet:
Destination Gateway Flags Refs Use Netif Expire
default 192.168.0.1 UGS 0 205 bge0
127.0.0.1 127.0.0.1 UH 0 2 lo0
192.168.0.0/24 link#1 UC 0 0 bge0
192.168.0.1 00:e0:29:3b:5a:b0 UHLW 2 10 bge0 1099
192.168.10.0/24 192.168.10.33 UGS 0 0 tun0
192.168.10.33 192.168.10.34 UH 1 0 tun0
...
thanks,
Ganbold
--
Algol-60 surely must be regarded as the most important programming
language yet developed. -- T. Cheatham
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