Re: Problem forward/postroute http/https thru vlan-ed interface.
Bob Proulx <bob@proulx.com> wrote:
> Mimiko wrote:
>> I set up in interfaces:
>> auto eth0
>> iface eth0 inet static
>>       address local_lan_ip
>>       netmask mask
>> auto eth1.2
>> iface eth1.2 inet static
>>       address isp1
>>       netmask mask
>> auto eth1.4
>> iface eth2.4 inet static
>>       address isp2
>>       netmask mask
>> 
>> VLAN ID 2 is for tagging to ISP1
>> VLAN ID 4 is for tagging to ISP2
> I see no vlans in your configuration above.  The above simply shows
> additional IP addresses being assigned.  If your switch is requiring
> vlan tagging then that is likely your problem.
Ah, nope. 
It's "magic". Since Wheezy ifupdown knows the notation 
"interface dot VLAN-ID" and automatically creates an appropriatly
configured interface. (In Squeeze you needed the "vlan"-package or a
small scriptled in /etc/network/if-pre-up.d to issue the correct
"ip"-commands.)
Try for you self, put one config like the above in your
network/interfaces file and use "ifup -v" to see what commands are used.
Also see the man-page for interfaces(5):
,----
| VLAN AND BRIDGE INTERFACES
|        To  ease  the  configuration  of  VLAN  interfaces, interfaces having .
|        (full stop character) in the name are configured as 802.1q tagged  vir‐
|        tual  LAN  interface. For example, interface eth0.1 is a virtual inter‐
|        face having eth0 as physical link, with VLAN ID 1.
`----
> See the documentation for setting up vlans here:
>   https://wiki.debian.org/NetworkConfiguration
That is horribly outdated. It even says "Etch" on the part for VLANs.
Grüße,
Sven.
-- 
Sigmentation fault. Core dumped.
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