Bridge woes
D'Arcy Cain
darcy at druid.net
Sun Oct 25 17:33:00 UTC 2020
I have been trying to solve this problem for a week now. I have been
emailing the virtualization list (Re: When is a switch not a switch?)
because it had to do with vm-bhyve but now I am wondering if it is something
else. Maybe some of the network experts here can help.
Basically I have the following in my rc.conf:
set -- $(/sbin/ifconfig -l ether); eth0=$1 eth1=$2
eval "ifconfig_${eth0}_name=\"eth0\"" # Public facing network
eval "ifconfig_${eth1}_name=\"eth1\"" # Private network
ifconfig_eth0="inet 0x629e8b${me}/27"
ifconfig_eth0_ipv6="inet6 2605:2600:1001::${me}/64"
ifconfig_eth1="inet 0xc0a897${me}/24"
ifconfig_eth1_ipv6="inet6 fc00:97:97::${me}/64"
vm_enable="YES"
vm_dir="zfs:zroot/VM"
vm_delay="5"
Everything there does what it is supposed to do. In rc.local I do this:
sysctl -w net.inet.ip.forwarding=1
sysctl -w net.inet6.ip6.forwarding=1
vm switch create public
vm switch add public eth0
vm switch create private
vm switch add private eth1
I know that I can put those sysctls in /etc/sysctl.conf but I have reasons
for doing it this way.
So far so good. I then fire up a VM by running "vm install". I haven't
been able to get an actual working system yet due to the following proble,
In the VM I set an IP address on the same network as the host:
vtnet0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric
0 mtu 1500
options=80028<VLAN_MTU,JUMBO_MTU,LINKSTATE>
ether 22:22:22:22:22:41
inet 98.158.139.71 netmask 0xffffffe0 broadcast 98.158.139.95
media: Ethernet 10Gbase-T <full-duplex>
status: active
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
I set up /etc/resolv.conf and default routes as expected. At that point I
can ping any IP address on my internal network as well as any ICMP friendly
sites anywhere on the Internet. However, I can't make a TCP connection to
anywhere except to the host or, for some odd reason, one other host on my
network.
I have tried putting the public IP on the bridge but other than complicating
my startup scripts it acts exactly the same.
Can anyone make any sense out of this?
--
D'Arcy J.M. Cain <darcy at druid.net> | Democracy is three wolves
http://www.druid.net/darcy/ | and a sheep voting on
+1 416 788 2246 (DoD#0082) (eNTP) | what's for dinner.
IM: darcy at VybeNetworks.com, VoIP: sip:darcy at druid.net
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