Search found 9 matches

by opticalc
2018/06/10 20:28:57
Forum: CentOS 7 - Networking Support
Topic: issues with internal VirtualNetwork for a LAN on KVM?
Replies: 2
Views: 490

Re: issues with internal VirtualNetwork for a LAN on KVM?

in case anyone else ever has this issue. I noticed the TCP SYN was making it out of the WAN interface of the pfsense, but nothing ever came back. the problem is the TCP checksum offloading needs to be disabled on the pfsense. not sure but i think they also recommend disabling it on all the VMs as we...
by opticalc
2018/06/09 21:05:45
Forum: CentOS 7 - Networking Support
Topic: issues with internal VirtualNetwork for a LAN on KVM?
Replies: 2
Views: 490

issues with internal VirtualNetwork for a LAN on KVM?

I thought I had it all figured out, but end up with very strange results. The goal is for a KVM host to have a VM running pfsense firewall that will frontend all network traffic (including traffic to/from the baremetal KVM host, which is to live on the same internal network all the other VMs will be...
by opticalc
2017/05/21 16:24:45
Forum: CentOS 7 - Networking Support
Topic: network bridge with libvrt not working
Replies: 19
Views: 10747

Re: network bridge with libvrt not working

my xml is: <network> <name>insideBridge</name> <bridge name="inside0" stp="on" delay="2" /> <mac address='00:16:3E:00:00:00'/> <forward mode="route" dev="enp3s0"/> <ip address="192.168.10.253" netmask="255.255.255.0" /> </network> ok yes, so libvrt starts dnsmasq as necessary, im not sure why it nee...
by opticalc
2017/05/21 03:02:06
Forum: CentOS 7 - Networking Support
Topic: network bridge with libvrt not working
Replies: 19
Views: 10747

Re: network bridge with libvrt not working

ok so those fw rules arent the problem. but I think ive got it narrowed down a good bit. I noticed that after boot, theres no static IP on my inside network bridge (now br1 and eth1, after loading centos6.9). however, if I use virsh to destroy then start the br1 network, then use service network res...
by opticalc
2017/05/19 22:09:42
Forum: CentOS 7 - Networking Support
Topic: network bridge with libvrt not working
Replies: 19
Views: 10747

Re: network bridge with libvrt not working

ok got it. well i now suspect what I tried from the beginning didnt work because of firewalld. I implemented what you said and now my new VM guest can DHCP from the new bridge I created and it can ping its default gateway (baremetal host new bridge) but cannot ping out past that. I did have ipv4.ip_...
by opticalc
2017/05/19 17:50:57
Forum: CentOS 7 - Networking Support
Topic: network bridge with libvrt not working
Replies: 19
Views: 10747

Re: network bridge with libvrt not working

yes, ok ill have to fess up here - I already got my home network working just like you describe in option B. baremetal host has a cable modem connected to enp2s0 and ive got ifcfg scripts set up for enp2s0 to be on br2, no ip configured for br2 baremetal host has a switch connected to enp3s0 and ive...
by opticalc
2017/05/19 13:15:17
Forum: CentOS 7 - Networking Support
Topic: network bridge with libvrt not working
Replies: 19
Views: 10747

Re: network bridge with libvrt not working

sorry - i guess i could have provided a bit more info. Just to get started, I already have a DHCP server on my LAN - I dont want the KVM host or any of its interfaces/bridges to be the DHCP server. So in virsh I had already destroyed and undefined that initial virbr0. I make it a point to use CLI an...
by opticalc
2017/05/18 22:31:03
Forum: CentOS 7 - Networking Support
Topic: network bridge with libvrt not working
Replies: 19
Views: 10747

network bridge with libvrt not working

Trying to set up a KVM environemnt to play around with, cannot seem to get networking to pass traffic. My Centos7 baremetal server's connection to my LAN is on enp3s0, its config is rather bare: NM_CONTROLLED="no" TYPE=Ethernet BOOTPROTO=none IPV4_FAILURE_FATAL=no IPV6INIT=no NAME=enp3s0 DEVICE=enp3...
by opticalc
2017/05/11 17:17:53
Forum: CentOS 7 - Software Support
Topic: guidance on networking strategy for KVM
Replies: 0
Views: 462

guidance on networking strategy for KVM

Im not quite sure when I would need to create a bridge. or what types of interfaces to put into my VM host. Then on what type of drive to tell it to use. My goal is to use a dual nic PC as a bare metal KVM server. Where 1 interface goes to cable modem and the other interface goes to my internal netw...

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