Re: netgraph network setup for jail(8) vnet jails.
On Thu, 23 May 2013 09:42-0400, Joe wrote:
> Teske, Devin wrote:
> > snip...
> > I rendered your output by saving it in a file ("joe.dot") and then running:
> >
> > dot -Tsvg -o joe.svg < joe.dot
> >
> > I then uploaded "joe.svg" to my website:
> >
> > http://druidbsd.sf.net/download/joe.svg
> >
> > Compare your output to any of the following:
> >
> > http://druidbsd.sf.net/download/warden0.jbsd.svg
> > http://druidbsd.sourceforge.net/download/folsom.svg
> >
> > It looks like everything is connected properly.
> >
> > A couple thoughts off the top of my head:
> >
> > a. Did you enable promiscuous mode on rl0 via ngctl? (in your script
> > perhaps?)
> >
> > b. Have you tried giving ngeth0 a new MAC address? (I do this through ngctl
> > too, but I imagine ifconfig from within the jail could achieve the same
> > thing)
> > --
> > Devin
>
> Yes I enabled promiscuous mode and setautosrc 0 on rl0 via ngctl.
> I can find no documentation on why this is done. Can you point me to some?
>
> Yes I gave the jail a unique MAC address.
>
> I tried to generate my own network map, but having problem.
>
> ngctl dot > file.dot works.
> dot -Tsvg -o file.svg < file.dot
> gives me "command dot not found".
Please install graphics/graphviz, either from ports or from packages.
> Tried ngctl dot -Tsvg -o file.svg < file.dot
> and -T is illegal option.
> What am I doing wrong?
>
> Thanks for your help
> Joe
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Re: netgraph network setup for jail(8) vnet jails.
Teske, Devin wrote:
snip...
I rendered your output by saving it in a file ("joe.dot") and then running:
dot -Tsvg -o joe.svg < joe.dot
I then uploaded "joe.svg" to my website:
http://druidbsd.sf.net/download/joe.svg
Compare your output to any of the following:
http://druidbsd.sf.net/download/warden0.jbsd.svg
http://druidbsd.sourceforge.net/download/folsom.svg
It looks like everything is connected properly.
A couple thoughts off the top of my head:
a. Did you enable promiscuous mode on rl0 via ngctl? (in your script perhaps?)
b. Have you tried giving ngeth0 a new MAC address? (I do this through ngctl
too, but I imagine ifconfig from within the jail could achieve the same thing)
--
Devin
Yes I enabled promiscuous mode and setautosrc 0 on rl0 via ngctl.
I can find no documentation on why this is done. Can you point me to some?
Yes I gave the jail a unique MAC address.
I tried to generate my own network map, but having problem.
ngctl dot > file.dot works.
dot -Tsvg -o file.svg < file.dot
gives me "command dot not found".
Tried ngctl dot -Tsvg -o file.svg < file.dot
and -T is illegal option.
What am I doing wrong?
Thanks for your help
Joe
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Re: netgraph network setup for jail(8) vnet jails.
On May 18, 2013, at 5:51 PM, Joe wrote:
Teske, Devin wrote:
Sorry for top-post, but just wanted to add a quick note:
The output of "ngctl dot" would be very helpful to others in debugging your
setup.
graph netgraph {
edge [ weight = 1.0 ];
node [ shape = record, fontsize = 12 ] {
"1" [ label = "{rl0:|{ether|[1]:}}" ];
"5" [ label = "{bridge0:|{bridge|[5]:}}" ];
"9" [ label = "{ngeth0:|{eiface|[9]:}}" ];
"e" [ label = "{ngctl2355:|{socket|[e]:}}" ];
};
subgraph cluster_disconnected {
bgcolor = pink;
"e";
};
node [ shape = octagon, fontsize = 10 ] {
"1.upper" [ label = "upper" ];
"1.lower" [ label = "lower" ];
};
{
edge [ weight = 2.0, style = bold ];
"1" -- "1.upper";
"1" -- "1.lower";
};
node [ shape = octagon, fontsize = 10 ] {
"5.link2" [ label = "link2" ];
"5.link1" [ label = "link1" ];
"5.link0" [ label = "link0" ];
};
{
edge [ weight = 2.0, style = bold ];
"5" -- "5.link2";
"5" -- "5.link1";
"5" -- "5.link0";
};
"5.link1" -- "1.upper";
"5.link0" -- "1.lower";
node [ shape = octagon, fontsize = 10 ] {
"9.ether" [ label = "ether" ];
};
{
edge [ weight = 2.0, style = bold ];
"9" -- "9.ether";
};
"9.ether" -- "5.link2";
};
I rendered your output by saving it in a file ("joe.dot") and then running:
dot -Tsvg -o joe.svg < joe.dot
I then uploaded "joe.svg" to my website:
http://druidbsd.sf.net/download/joe.svg
Compare your output to any of the following:
http://druidbsd.sf.net/download/warden0.jbsd.svg
http://druidbsd.sourceforge.net/download/folsom.svg
It looks like everything is connected properly.
A couple thoughts off the top of my head:
a. Did you enable promiscuous mode on rl0 via ngctl? (in your script perhaps?)
b. Have you tried giving ngeth0 a new MAC address? (I do this through ngctl
too, but I imagine ifconfig from within the jail could achieve the same thing)
--
Devin
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Re: netgraph network setup for jail(8) vnet jails.
Teske, Devin wrote:
Sorry for top-post, but just wanted to add a quick note:
The output of "ngctl dot" would be very helpful to others in debugging your
setup.
graph netgraph {
edge [ weight = 1.0 ];
node [ shape = record, fontsize = 12 ] {
"1" [ label = "{rl0:|{ether|[1]:}}" ];
"5" [ label = "{bridge0:|{bridge|[5]:}}" ];
"9" [ label = "{ngeth0:|{eiface|[9]:}}" ];
"e" [ label = "{ngctl2355:|{socket|[e]:}}" ];
};
subgraph cluster_disconnected {
bgcolor = pink;
"e";
};
node [ shape = octagon, fontsize = 10 ] {
"1.upper" [ label = "upper" ];
"1.lower" [ label = "lower" ];
};
{
edge [ weight = 2.0, style = bold ];
"1" -- "1.upper";
"1" -- "1.lower";
};
node [ shape = octagon, fontsize = 10 ] {
"5.link2" [ label = "link2" ];
"5.link1" [ label = "link1" ];
"5.link0" [ label = "link0" ];
};
{
edge [ weight = 2.0, style = bold ];
"5" -- "5.link2";
"5" -- "5.link1";
"5" -- "5.link0";
};
"5.link1" -- "1.upper";
"5.link0" -- "1.lower";
node [ shape = octagon, fontsize = 10 ] {
"9.ether" [ label = "ether" ];
};
{
edge [ weight = 2.0, style = bold ];
"9" -- "9.ether";
};
"9.ether" -- "5.link2";
};
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Re: netgraph network setup for jail(8) vnet jails.
Sorry for top-post, but just wanted to add a quick note:
The output of "ngctl dot" would be very helpful to others in debugging your
setup.
--
Devin
On May 18, 2013, at 8:38 AM, Joe wrote:
> Hello list
>
> I cant get to the internet using this netgraph setup script.
> I sure would appreciate giving this console log a look over for
> errors. My netgraph knowledge level is not sufficient to see what is
> wrong. The goal is to run this script to setup and break down a netgraph
> network for a single vnet jail at a time. rl0 is the real nic interface
> device name of the nic facing the internet. This box is on my lan and
> the gateway box does NAT for all lan boxes. The host running this script can
> ping the internet ok.
>
> Thank you very much for your help.
>
>
>
>
>
> The host's kernel has modules with vimage & ipfw compiled in.
>
> From the host
> # /root >ifconfig
> rl0: flags=8843 metric 0 mtu
> options=2008
> ether 00:0c:6e:09:8b:74
> inet 10.0.10.5 netmask 0xfff8 broadcast 10.0.10.7
> nd6 options=29
> media: Ethernet autoselect (100baseTX )
> status: active
> plip0: flags=8810 metric 0 mtu 1500
> nd6 options=29
> ipfw0: flags=8801 metric 0 mtu 65536
> nd6 options=29
> lo0: flags=8049 metric 0 mtu 16384
> options=63
> inet6 ::1 prefixlen 128
> inet6 fe80::1%lo0 prefixlen 64 scopeid 0x8
> inet 127.0.0.1 netmask 0xff00
> nd6 options=21
>
> The jails config file
> # /root >cat /usr/local/etc/vnet/vdir4
> vdir4 {
> host.hostname = "vdir4";
> path= "/usr/jails/vdir4";
> mount.fstab = "/usr/local/etc/fstab/vdir4";
> vnet;
> persist;
> }
>
> The netgraph script
> # /root >cat /usr/local/bin/vnet.ng.test
> #!/bin/sh
> # snip comments for displaying here
> # This script is based on this /usr/share/examples/netgraph/virtual.lan
>
> # Give the name of ethernet interface.
> ETHER_INTF="rl0"
>
> # List the names of virtual nodes and their IP addresses. Use ':'
> # character to separate node name from node IP address and netmask.
>
> #TARGET_TOPOLOGY="c1|10.0.2.20/24 c2|10.0.2.21/24 c3|10.0.2.22/24"
> TARGET_TOPOLOGY="vdir4|10.0.2.20/24"
>
> # MAC manufacturer prefix. This can be modified according to needs.
> MAC_PREFIX="00:1d:92"
>
> # Temporary file is important for proper execution of script.
> TEMP_FILE="/var/tmp/virtual.lan.tmp"
>
> virtual_lan_start() {
>
> # Load netgraph KLD's as necessary.
>
> for KLD in ng_ether ng_bridge ng_eiface; do
> if ! kldstat -v | grep -qw ${KLD}; then
> echo -n "Loading ${KLD}.ko... "
> kldload ${KLD} || exit 1
> echo "done"
> fi
> done
>
> # Reset all interfaces and jails. If temporary file can not be found
> # script assumes that there is no previous configuration.
>
> if [ ! -e ${TEMP_FILE} ]; then
> echo "No previous configuration(${TEMP_FILE}) found to clean-up."
> else
> echo -n "Cleaning previous configuration..."
> virtual_lan_stop
> echo "done"
> fi
>
> # Create temporary file for usage. This file includes generated
> # interface names and jail names. All bridges, interfaces and jails
> # are written to file while created. In clean-up process written
> # objects are cleaned (i.e. removed) from system.
>
> if [ -e ${TEMP_FILE} ]; then
> touch ${TEMP_FILE}
> fi
>
> echo -n "Verifying ethernet interface existence..."
> # Verify ethernet interface exist.
> if ! ngctl info ${ETHER_INTF}: >/dev/null 2>&1; then
> echo "Error: interface ${ETHER_INTF} does not exist"
> exit 1
> fi
>
> ifconfig ${ETHER_INTF} up || exit 1
> echo "done"
>
> # Get current number of bridge interfaces in the system. This number
> # is used to create a name for new bridge.
> BRIDGE_COUNT=`ngctl l | grep bridge | wc -l | sed -e "s/ //g"`
> BRIDGE_NAME="bridge${BRIDGE_COUNT}"
>
> # Create new ng_bridge(4) node and attach it to the ethernet interface.
> # Connect ng_ether:lower hook to bridge:link0 when creating bridge and
> # connect ng_ether:upper hook to bridge:link1 after bridge name is set.
>
> echo "Creating bridge interface: ${BRIDGE_NAME}..."
> ngctl mkpeer ${ETHER_INTF}: bridge lower link0 || exit 1
> ngctl name ${ETHER_INTF}:lower ${BRIDGE_NAME} || exit 1
> ngctl connect ${ETHER_INTF}: ${BRIDGE_NAME}: upper link1 || exit 1
> echo "Bridge ${BRIDGE_NAME} is created and ${ETHER_INTF} is connected."
>
> # In the above code block two hooks are connected to bridge interface,
> # therefore LINKNUM is set to 2 indicating total number of connected
> # hooks on the bridge interface.
> LINKNUM=2
>
> # Write name of the bridge to temp file. Clean-up procedure will use
> # this name to shutdown bridge interface.
> echo "bridge ${BRIDGE_NAME}" > ${TEMP_FILE}
>
>
> # Attach vnet jail.
> for NODE in ${TARGET_TOPOLOGY}; do
>
> # Virtual nodes are defined in TARGET_TOPOLOGY variable. They
> # have the form of 'nodeName|IPaddr'. Below two lines split
> # node definition to get no
