Frame Tagging

[George S.]

And what is the correct method to seek an answer?


On 8/1/13 8:38 AM, Steven Carr wrote:
> You asked the same question a week ago and didn't get a response.
> Please don't repost.
>
>
> On 1 August 2013 15:24, George S. <georges at mhsoftware.com> wrote:
>> I'm using DHCP 4.2.5 on a linux machine running kernel version 3.7.10
>>
>> I've got the eth0 interface setup using Frame Tagging.  I've got a secondary
>> interface eth0.2 running the network 172.22.0.0. There is only one physical
>> network. The frame tagging is getting done by a wifi access point. Anything
>> coming over the open wifi network should be coming in with the frame tagged
>> for id 2. The problem is that DHCP seems to be doing things wrong. It's
>> looking to me like it's ignoring the frame tagging and it's processing the
>> DHCP request on both interfaces. So, I'm getting people from the public wifi
>> on the wrong network.
>>
>> I've searched and looked through old messages on this topic, but I've never
>> found anything that looked like either a solution or a definitive
>> pronouncement that it just can't work.
>>
>> I've looked through the docs and I saw the comment about frame tagging and
>> vconfig. I implemented that but it makes no difference.
>>
>> Here are some messages in my log:
>>
>> 2013-07-22T13:17:29.121349-06:00 server dhcpd: DHCPOFFER on 172.22.13.223 to
>> 84:29:99:7c:7e:fa (Karas-iPhone) via eth0.2
>> 2013-07-22T13:17:29.121389-06:00 server dhcpd: DHCPOFFER on 10.1.10.95 to
>> 84:29:99:7c:7e:fa (Karas-iPhone) via eth0
>> 2013-07-22T13:17:30.202147-06:00 server dhcpd: DHCPREQUEST for 172.22.13.223
>> (172.22.0.32) from 84:29:99:7c:7e:fa (Karas-iPhone) via eth0.2
>> 2013-07-22T13:17:30.202381-06:00 server dhcpd: DHCPACK on 172.22.13.223 to
>> 84:29:99:7c:7e:fa (Karas-iPhone) via eth0.2
>> 2013-07-22T13:17:30.202594-06:00 server dhcpd: DHCPREQUEST for 172.22.13.223
>> (172.22.0.32) from 84:29:99:7c:7e:fa (Karas-iPhone) via eth0: wrong network.
>> 2013-07-22T13:17:30.202753-06:00 server dhcpd: DHCPNAK on 172.22.13.223 to
>> 84:29:99:7c:7e:fa via eth0
>>
>>
>>
>> Here's my dhcpd.conf
>>
>> authoritative;
>> option domain-search "crossingchurch.org", "wcon.org", "private.wcon.org";
>> ddns-update-style interim;
>> deny client-updates;
>>
>> log-facility local7;
>>
>>
>> key DHCP_UPDATER {
>>          algorithm hmac-md5;
>>          secret "1hamjDWV1PIwTdmwRfLjezhrxkTpm1RqRAXaecLJ548=";
>> }
>>
>> zone private.wcon.org {
>>          primary 127.0.0.1;
>>          key DHCP_UPDATER;
>> }
>>
>> zone 10.1.10.in-addr.arpa {
>>          primary 127.0.0.1;
>>          key DHCP_UPDATER;
>> }
>>
>> host sign.private.wcon.org {
>>          hardware ethernet 00:20:4a:8e:e2:8c;
>>          fixed-address 10.1.10.40;
>> }
>>
>> subnet 10.1.10.0 netmask 255.255.255.0 {
>>          option domain-name "private.wcon.org";
>>          ddns-updates on;
>>          option domain-name-servers 10.1.10.32;
>>          option routers 10.1.10.1;
>>          option ntp-servers 10.1.10.32;
>>          range 10.1.10.64 10.1.10.254 ;
>>          default-lease-time 252900;
>>          max-lease-time 252900;
>>          option netbios-name-servers 10.1.10.32;
>> }
>>
>> subnet 172.22.0.0 netmask 255.255.0.0 {
>>          option domain-name "pubwifi.crossingchurch.org";
>>          ddns-updates off;
>>          option domain-name-servers 172.22.0.32;
>>          option routers 172.22.0.32;
>>          option ntp-servers 172.22.0.32;
>>          range 172.22.2.0 172.22.254.254 ;
>>          default-lease-time 43200;
>>          max-lease-time 43200;
>> }
>>
>>
>>
>>
>> --
>> George Sexton
>> MH Software, Inc.
>> 303 438-9585
>> http://www.mhsoftware.com/
>>
>>
>>
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-- 
George Sexton
MH Software, Inc.
303 438-9585
http://www.mhsoftware.com/