[Techtalk] 802.1q VLAN and routing problem?

[Jennifer Mehl]

Thanks, but unfortunately, ip forwarding is not it.

I'm not trying to make this box into a router.  I'm trying to get it to look at the 3 VLANS on the 1 interface as 3 separate interfaces and respond to pings like any regular multi-homed box does.

I think this is a route problem.

I have also read that some HP switches require that the MAC addresses be unique on each VLAN interface ... so I'm going to try that as well.

Any other suggestions would be appreciated as well...

Jennifer

========================================
Jennifer L. Mehl
Senior Systems Administrator
University of California, Santa Barbara
Physics Computing Services
jmehl at physics.ucsb.edu
(805) 893-8366 work
(805) 451-7486 cell
========================================


-----Original Message-----
From: techtalk-bounces at linuxchix.org [mailto:techtalk-bounces at linuxchix.org] On Behalf Of Hugo Chasqueira
Sent: Thursday, January 29, 2004 12:30 PM
To: techtalk at linuxchix.org
Subject: Re: [Techtalk] 802.1q VLAN and routing problem?

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Hi,

On Thursday 29 January 2004 01:25, Jennifer Mehl wrote:
> --Hosts on the 8 subnet can ping the 8 address.  They can not ping the 16
> or 23 addresses.
>
> --Hosts on the 16 subnet can ping the 16 address. They can not ping the 8
> or 23 addresses.
>
> --Hosts outside our net can ping the 16 address.  They can not ping the 8
> or 23 addresses.
>
> --This host can ping any (otherwise accessible) host on any net.

Have you turned on ip forwarding?

Do "cat /proc/sys/net/ipv4/ip_forward", if it returns 0, ip forwarding is 
disabled.

To enable it execute "echo 1 > /proc/sys/net/ipv4/ip_forward".

Without ip forwarding enabled, your server will not pass the packets from a 
network to another.


- -- 

Hugo Chasqueira

Public Key:
http://search.keyserver.net:11371/pks/lookup?op=get&search=0x8BD14B82

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