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Full Discussion: network segment use vlan, linux vconfig and AT-GS950
Special Forums IP Networking network segment use vlan, linux vconfig and AT-GS950 Post 302252213 by lorentz on Wednesday 29th of October 2008 03:38:52 AM
Old 10-29-2008
Quote:
Originally Posted by penyu
Dear all,

I have a Allied Telesyn AT-GS950 16 port switch.
All hosts&router have rtl8139 NICs.
OS : Slackware linux 12.1.
I use a switch with vlan technique to separate my network to some segment.

here my plan:

router eth0 ---> switch port 1
switch port 5 <--- eth0 host A
switch port 6 <--- eth0 host B

in eth0 of router, I make two vlan :
Code:
# modprobe 8021q
# ifconfig eth0 0.0.0.0 up
# vconfig add eth0 5
# ifconfig eth0.5 172.16.5.1 netmask 255.255.255.0 up
# vconfig add eth0 6
# ifconfig eth0.5 172.16.6.1 netmask 255.255.255.0 up

host A :
Code:
# ifconfig eth0 172.16.5.2 netmask 255.255.255.0 up

host B :
Code:
# ifconfig eth0 172.16.6.2 netmask 255.255.255.0 up

Arrange vlan configuration in switch :
Code:
VLAN_ID    VLAN_NAME     VLAN_MEMBER
1        Default VLAN   Untag:1; Tag:-; Not_member:2-16
5        vlan5              Untag:5; Tag:1; Not_member:2-4,6-16
6        vlan6              Untag:6; Tag:1; Not_member:2-5,7-16

ping result to both host A and host B from router gave same result : Destination Host Unreachable
ping command :
Code:
# ping 172.16.5.2 -I vlan5
# ping 172.16.6.2 -I vlan6

Please help, there's maybe I have wrong concept about vlan configuration?
Thank you very much.


Regards,
Denny
All config seems to be ok. Check ping from host to router (in same network, 172.16.5.2 -> 172.16.5.1 etc). Check running router process on router. And check trunk mode on AT switch - it must be 802.1q (dot1q).

Additionaly try to disable firewall on router, if you use that

I hope that helps
 

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LEARN ABOUT DEBIAN

fence_brocade

fence_brocade(8)					      System Manager's Manual						  fence_brocade(8)

NAME

       fence_brocade - I/O Fencing agent for Brocade FC switches

SYNOPSIS

       fence_brocade [OPTION]...

DESCRIPTION

       fence_brocade  is an I/O Fencing agent which can be used with Brocade FC switches.  It logs into a Brocade switch via telnet and disables a
       specified port.	Disabling the port which a machine is connected to effectively fences that machine.  Lengthy  telnet  connections  to  the
       switch should be avoided while a GFS cluster is running because the connection will block any necessary fencing actions.

       fence_brocade  accepts  options	on the command line as well as from stdin.  fenced sends parameters through stdin when it execs the agent.
       fence_brocade can be run by itself with command line options which is useful for testing.

       After a fence operation has taken place the fenced machine can no longer connect to the Brocade FC switch.   When  the  fenced  machine	is
       ready  to  be  brought  back into the GFS cluster (after reboot) the port on the Brocade FC switch needs to be enabled. This can be done by
       running fence_brocade and specifying the enable action.

       Vendor URL: http://www.brocade.com

OPTIONS

       -a IPaddress
	      IP address of the switch.

       -h     Print out a help message describing available options, then exit.

       -l login
	      Login name for the switch.

       -n port
	      The port number to disable on the switch.

       -o action
	      The action required.  disable (default) or enable.

       -p password
	      Password for login.

       -S path
	      Full path to an executable to generate the password for login.

       -q     Quiet mode: print only error messages.

       -V     Print out a version message, then exit.

STDIN PARAMETERS

       agent = < param >
	      This option is used by fence_node(8) and is ignored by fence_brocade.

       ipaddr = < hostname | ip >
	      IP address or hostname of the switch.

       login = < param >
	      Login name.

       option = < param >
	      The action required.  disable (default) or enable.

       passwd = < param >
	      Password for login.

       passwd_script = < param >
	      Full path to an executable to generate the password for login.

       port = < param >
	      The port number to disable on the switch.

SEE ALSO

       fence(8), fence_node(8)

																  fence_brocade(8)
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