pls help..

Da Rock freebsd-questions at herveybayaustralia.com.au
Tue Dec 14 12:46:04 UTC 2010


On 12/14/10 19:54, Justin V. wrote:
> Hi,
>
> I am having a very difficult time understanding what is going on with 
> this FreeBSD machine..
>
> I was having inet trouble so i put in a new router on my network (home 
> network)..
>
> I have a FreeBSD machine on my network:
>
> FreeBSD yeaguy.com 8.1-RELEASE FreeBSD 8.1-RELEASE #3: Thu Nov  4 
> 20:43:41 PDT 2010     vic at yeaguy.com:/usr/obj/usr/src/sys/HBCA  i386
>
>
> I have windows machines on my network..
>
>
> One of my windows machines is my laptop and I connect directly to the 
> router via WIFI without any trouble at all...  I can browse any 
> website without complaint.
>
> My FreeBSD system connects to my WIFI router just fine as well..  I am 
> seeing troubles browsing the inet with my FreeBSD machine (Xorg and 
> opera) Pulling up Google.com can take up to 30s..
>
> My Other windows machine is using the FreeBSD as its gateway, I am 
> running ipnat. This pc suffers from the same issues as the FreeBSD box..
>
> I configured the new router with the same ssid and wepkey.. so minimal 
> adjustments would have to be made for other WIFI users in the house.. 
> Everyone is fine except me...
>
> My server is fine as far as my Website is concerned.. I changed my DNS 
> with my host to point to my new WAN IP.. I can pull my page fine.. I 
> can ssh to my server fine from my phone, phones ip is from my Phones 
> netowrk.. this is not being done via WIFI on my phone..
>
> So my Nat'd WIN PC and my FreeBSD Xorg cannot browse the internet like 
> it used to.. 30s to 40s to pull up google is just unacceptable, when I 
> have my laptop sitting here using the same WIFI router pulling it up 
> in about 3ms...
>
> Another odd symptom I am seeing is that when i issue the command 
> 'alpine' to check my email, it hangs for a good 30s....  So in my 
> mind, Im thinking, what changed?? My router and my Public IP.. thats 
> it.. its almost like I have my OLD WAN ip hardcoded somewhere causing 
> a conflict.. I cannot find it hardcoded anywhere..
>
> Heres an example of what im seeing:
>
> [vic at yeaguy ~]$ ping google.com
> PING google.com (72.14.204.147): 56 data bytes
> 64 bytes from 72.14.204.147: icmp_seq=0 ttl=52 time=85.460 ms
> 64 bytes from 72.14.204.147: icmp_seq=1 ttl=52 time=85.152 ms
> 64 bytes from 72.14.204.147: icmp_seq=2 ttl=52 time=84.048 ms
> 64 bytes from 72.14.204.147: icmp_seq=3 ttl=52 time=82.442 ms
> ^C
> --- google.com ping statistics ---
> 4 packets transmitted, 4 packets received, 0.0% packet loss
> round-trip min/avg/max/stddev = 82.442/84.275/85.460/1.182 ms
>
>
> [vic at yeaguy ~]$ telnet google.com 80
> Trying 72.14.204.147...
> Connected to google.com. <it hung here for alot longer than 85ms>
> Escape character is '^]'.
> ^]
> telnet> q
> Connection closed.
> [vic at yeaguy ~]$
>
>
> I am unable to browse to nytimes.com via FreeBSD Opera browser or WIN 
> PC that is using the FreeBSD as the gateway, but I can telnet to it on 
> tcp port 80 just fine..
>
> [vic at yeaguy ~]$ telnet nytimes.com 80
> Trying 199.239.136.200...
> Connected to nytimes.com.
> Escape character is '^]'.
> get
> <HTML><HEAD><TITLE>Bad request</TITLE></HEAD>
> <BODY><H1>Bad request</H1>
> Your browser sent a query this server could not understand.
> </BODY></HTML>Connection closed by foreign host.
> [vic at yeaguy ~]$
>
>
> Heres some config files:
>
>
> [vic at yeaguy ~]$ cat /etc/rc.conf
> wlans_rum0="wlan0"
> gateway_enable="YES"
> ifconfig_wlan0="inet 192.168.1.169 netmask 255.255.255.0 ssid vicnet 
> wepmode on weptxkey 1 wepkey 1:0xF4AE43E9BA description WIFI"
> defaultrouter="192.168.1.1"
> apache22_enable="YES"
> hald_enable="YES"
> dbus_enable="YES"
> samba_enable="YES"
> nmbd_enable="YES"
> smbd_enable="YES"
> winbindd_enable="YES"
> hostname="yeaguy.com"
> ifconfig_em0="inet 10.1.1.1 netmask 255.255.255.0 broadcast 10.1.1.255 
> description LAN"
> inetd_enable="YES"
> linux_enable="YES"
> sshd_enable="YES"
> usbd_enable="YES"
> postfix_enable="YES"
> sendmail_enable="NO"
> sendmail_submit_enable="NO"
> sendmail_outbound_enable="NO"
> sendmail_msp_queue_enable="NO"
> firewall_enable="YES"
> firewall_script="/etc/fire"
> ipnat_enable="YES"
> ipnat_program="/sbin/ipnat"
> ipnat_rules="/etc/ipnat.rules"
> ipnat_flags=""
> #ipmon_enable="YES"
> #ipmon_program="/sbin/ipmon"
> #ipmon_flags="-Ds"
> named_enable="YES"
> ntpdate_enable="YES"
> ntpdate_program="ntpdate"
> ntpdate_flags="-b 0.north-america.pool.ntp.org"
> mysql_enable="YES"
> clamav_clamd_enable="YES"
> clamav_freshclam_enable="YES"
> amavisd_enable="YES"
> #amavisd_ram="512m"
> pf_enable="YES"
> pf_rules="/etc/pf.conf"
> pflog_enable="YES"
> saver="daemon"
>
>
>
> [vic at yeaguy ~]$ ifconfig
> em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>         description: LAN 
> options=219b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_MAGIC> 
>
>         ether 00:16:76:bf:17:29
>         inet 10.1.1.1 netmask 0xffffff00 broadcast 10.1.1.255
>         media: Ethernet autoselect (100baseTX <full-duplex>)
>         status: active
> ipfw0: flags=8801<UP,SIMPLEX,MULTICAST> metric 0 mtu 65536
> pflog0: flags=141<UP,RUNNING,PROMISC> metric 0 mtu 33200
> lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
>         options=3<RXCSUM,TXCSUM>
>         inet6 fe80::1%lo0 prefixlen 64 scopeid 0x4
>         inet6 ::1 prefixlen 128
>         inet 127.0.0.1 netmask 0xff000000
>         nd6 options=3<PERFORMNUD,ACCEPT_RTADV>
> pfsync0: flags=0<> metric 0 mtu 1460
>         syncpeer: 224.0.0.240 maxupd: 128
> rum0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 
> 2290
>         ether 00:1e:e5:a8:bd:5a
>         media: IEEE 802.11 Wireless Ethernet autoselect mode 11g
>         status: associated
> wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 
> 1500
>         description: WIFI
>         ether 00:1e:e5:a8:bd:5a
>         inet 192.168.1.169 netmask 0xffffff00 broadcast 192.168.1.255
>         media: IEEE 802.11 Wireless Ethernet OFDM/18Mbps mode 11g
>         status: associated
>         ssid vicnet channel 11 (2462 MHz 11g) bssid 00:22:6b:66:bf:74
>         country US authmode OPEN privacy ON deftxkey 1 wepkey 1:40-bit
>         txpower 0 bmiss 7 scanvalid 60 bgscan bgscanintvl 300 
> bgscanidle 250
>         roam:rssi 7 roam:rate 5 protmode CTS
> [vic at yeaguy ~]$
>
>
> [vic at yeaguy ~]$ netstat -rn
> Routing tables
>
> Internet:
> Destination        Gateway            Flags    Refs      Use  Netif 
> Expire
> default            192.168.1.1        UGS         1     2208  wlan0
> 10.1.1.0/24        link#1             U           4    16001    em0
> 10.1.1.1           link#1             UHS         0        0    lo0
> 127.0.0.1          link#4             UH          0       36    lo0
> 192.168.1.0/24     link#7             U           6     7123  wlan0
> 192.168.1.169      link#7             UHS         0        0    lo0
>
> Internet6:
> Destination                       Gateway                       Flags 
> Netif Expire
> ::1                               ::1                           UH lo0
> fe80::%lo0/64                     link#4                        U lo0
> fe80::1%lo0                       link#4                        UHS lo0
> ff01:4::/32                       fe80::1%lo0                   U lo0
> ff02::%lo0/32                     fe80::1%lo0                   U lo0
> [vic at yeaguy ~]$
>
>
>
> yeaguy# ipnat -l
> List of active MAP/Redirect filters:
> map wlan0 10.1.1.0/24 -> 192.168.1.169/32 portmap tcp/udp 10000:60000
> map wlan0 10.1.1.0/24 -> 192.168.1.169/32
>
> List of active sessions:
> MAP 10.1.1.190      53867 <- -> 192.168.1.169   54939 [69.147.83.34 80]
> MAP 10.1.1.190      53401 <- -> 192.168.1.169   45879 [72.14.204.147 80]
> MAP 10.1.1.190      53398 <- -> 192.168.1.169   18541 [72.14.204.147 80]
> MAP 10.1.1.190      53397 <- -> 192.168.1.169   27460 [72.14.204.147 80]
> yeaguy#
>
>
>
> I am thinking of doing a fresh install to see if my issue clears..  I 
> am beyond frustrated.. A WAN IP and router change and now I have some 
> odd tick/hangup on the system???!!!  that makes no sense.. if i put 
> the old router in place it works fine.. I really dont want to use the 
> old router either,, it requires a reboot daily.. it flakey...
>
> I checked the router for ACLs and anything that might cause conflict 
> but I am not seeing anything..  I really cant see how its the new 
> router.. my WIN LAPTOP when connecting to the router works 
> flawlessly...  The only odd thing I do see in regards to the router 
> and FreeBSD box is the WEP attributes:
>
> ifconfig shows:
>
> wepkey 1:40-bit // Router shows: WEP Encryption: "64 bits 10 hex 
> digits".. is that an issue??
>
> Router is a Linksys WRT54G2...   My router logs show in and out 
> traffic from the FreeBSD box.. so this is why Im thinking its the 
> FreeBSD box...
>
> Can i do a system wide grep on all files to see if i find the OLD WAN 
> IP hardcoded somewhere???
>
> I have completely disable ipfw as well:
>
> yeaguy# ipfw -q flush
> yeaguy# ipfw show
> 65535 4145 3401628 allow ip from any to any
>
> If anyone can assist Id be very greatful..
>
> Thanks
>
> Justin V.
A reload would possibly solve it but I'd say its extreme.

I'd be more likely to start again and reconfigure your net from scratch. 
Instead of adjusting values in rc.conf, wipe the wifi related stuff and 
start again.

That said, can you enlighten why you don't use wpa? wep's been hacked 
for nearly a decade- wpa's now even up to wpa2... and last I checked ye 
ole Linksys WRT54G was capable even then of wpa2.

IMO you'd be more secure and definitely easier and reliably setup doing 
the switch to wpa- no confusion in reinitialising old settings- in rc.conf:

ifconfig_wlan0="{inet or dhcp} wpa"

In /etc/wpa_supplicant.conf:

network={
     ssid="myssid"
     psk="secret"
}

And done. If it still doesn't work its somewhere to start from, but its 
basic enough to work straight off the bat. Once its working you can then 
complicate it as much as you like... :)

That said 64 and 40 bit doesn't quite sound the same to me...

HTH


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