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 From:  taharka <res00vl8 at alltel dot net>
 To:  Don Munyak <don dot munyak at gmail dot com>
 Cc:  m0n0wall at lists dot m0n0 dot ch
 Subject:  Re: [m0n0wall] collisions issue
 Date:  Mon, 18 Sep 2006 13:08:06 -0400
Howdy,

On Mon, 2006-09-18 at 11:29 -0400, Don Munyak wrote:
> I think I seem to be having problems with collisions.
> The collisions are incrementing at about 1 per second.
> I need some advice on how to troubleshoot this.

Getting collisions on the LAN also? If not, how bout switching the nics
around? If the nic is faulty, the problem should show up on the LAN &
the WAN should be OK.

> Not sure if this is coincidence but, m0n0wall is showing the WAN port
> as simply being 100baseTX, not 100baseTX <full-duplex>

Hmm...., Just looked at one of my m0n0walls with Realtek nics & it shows
100baseTX <full-duplex> for the WAN interface. BTW, the collision count
is zero.

> WAN interface
> Status up
> MAC address 00:40:48:b1:a6:0e
> IP address 8.A.B.250
> Subnet mask 255.255.255.252
> Gateway 8.A.B.249
> Media 100baseTX
> In/out packets 2027038/2080774 (788.76 MB/755.46 MB)
> In/out errors 0/1
> Collisions 2387
> 
> rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> 	options=40<POLLING>
> 	inet 192.168.18.1 netmask 0xffffff00 broadcast 192.168.18.255
> 	ether 00:40:48:b1:a6:0f
> 	media: Ethernet autoselect (100baseTX <full-duplex>)
> 	status: active
> rl1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> 	options=40<POLLING>
> 	inet 8.A.B.250 netmask 0xfffffffc broadcast 8.A.B.251
> 	ether 00:40:48:b1:a6:0e
> 	media: Ethernet autoselect (100baseTX)
> 	status: active
> 	
> <interfaces>
> 	<lan>
> 		<if>rl0</if>
> 		<ipaddr>192.168.18.1</ipaddr>
> 		<subnet>24</subnet>
> 		<media/>
> 		<mediaopt/>
> 	</lan>
> 	<wan>
> 		<if>rl1</if>
> 		<mtu/>
> 		<media/>
> 		<mediaopt/>
> 		<spoofmac/>
> 		<ipaddr>8.A.B.250</ipaddr>
> 		<subnet>30</subnet>
> 		<gateway>8.A.B.249</gateway>
> 		<blockpriv/>
> 	</wan>	
> 
> The physcial connections for this router are:
> 
> --inet--IPS--m0n0wall--LAN
> 
> the inet connection is a 100mb feed from co-lo provider
> the IPS is a device from 3com/TippingPoint
> The IPS details
> 
> IPS# show configuration interface
> interface mgmtEthernet
>     ip 192.168.18.10
>     mask 255.255.255.0
>     exit
> interface ethernet 3 1
>     no negotiate
>     duplex full
>     linespeed 100
>     no shutdown
>     exit
> interface ethernet 3 2
>     no negotiate
>     duplex full
>     linespeed 100
>     no shutdown
>     exit
> interface settings poll-interval 2000
> interface settings detect-mdi enable
> interface settings mdi-mode mdix
> IPS#
> 
> IPS# show interface ethernet -details
> Slot/Port                   3/1
>    Type                     Ethernet
>    MTU                      1500
>    Link                     up(1)
>    Speed                    100
>    Duplex                   Full(3)
>    RX Unicast Pkts          1941171
>    RX Multicast Pkts        17027
>    RX Broadcast Pkts        2
>    RX Error Pkts            0
>    RX Discards              0
>    RX Unknown Protocols     0
>    RX Total Pkts            1958200
>    RX Total Bytes           677180427
>    TX Unicast Pkts          1903878
>    TX Multicast Pkts        0
>    TX Broadcast Pkts        839
>    TX Total Pkts            1904717
>    TX Total Bytes           719788248
>    Port State               Active
>    State 1 Qualifier        OK
>    State 2 Qualifier        No Info
>    Port Config Type         Simplex
> 
> 
> Slot/Port                   3/2
>    Type                     Ethernet
>    MTU                      1500
>    Link                     up(1)
>    Speed                    100
>    Duplex                   Full(3)
>    RX Unicast Pkts          1904299
>    RX Multicast Pkts        0
>    RX Broadcast Pkts        839
>    RX Error Pkts            0
>    RX Discards              0
>    RX Unknown Protocols     0
>    RX Total Pkts            1905138
>    RX Total Bytes           720186561
>    TX Unicast Pkts          1939874
>    TX Multicast Pkts        17024
>    TX Broadcast Pkts        1
>    TX Total Pkts            1956899
>    TX Total Bytes           676712574
>    Port State               Active
>    State 1 Qualifier        OK
>    State 2 Qualifier        No Info
>    Port Config Type         Simplex
> 
taharka

Lexington, Kentucky U.S.A.