pfSense HA LAN Interfaces Only
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@viragomann fantastic.. I will give this a shot today. So when I swing the wan over from primary to secondary node as a failover, this will restore internet to flow over the backup only?
And does this solution affect the primary wan internet in any negative way? Or will this just provide internet to the secondary node as a client for the purpose to update apps on the router.
Do I need to add additional CARP VIP for this? If master goes down my carp for the Lan interfaces will go master on the backup node. And I assume the secondary will loose access to the Internet right since it was routing from there (which is fine and makes since) at that point I would swing wan over.
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@iptvcld said in pfSense HA LAN Interfaces Only:
I will give this a shot today. So when I swing the wan over from primary to secondary node as a failover, this will restore internet to flow over the backup only?
Yes, the gateway group cares that the the secondary use primarys LAN only if the WAN DHCP isn't available.
It's only to provide internet to the secondary and doesn't affect any other connections.
I guess, it's a good idea to set a public IP for monitoring (e.g. 8.8.8.8) in the LAN gateway settings. This way the secondary detects the gateway as offline in case you activate the CARP maintenance mode on the master and will switch over to the WAN gw.
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@viragomann
I guess, it's a good idea to set a public IP for monitoring (e.g. 8.8.8.8) in the LAN gateway settings. = would I do this on the primary node or secondary node?This way the secondary detects the gateway as offline in case you activate the CARP maintenance mode on the master and will switch over to the WAN gw. = if I enable carp mant mode on the master node and I don't swing the wan fiber over to secondary node, it would simply mean no internet until that connection is made? What would happen if don't don't enable carp maint mode on master and just swing over wan to secondary? I guess my carp for Lan will still be master on my primary as Lan is still up.
I'm sorry I am just trying to get a full picture and you have been really great help.
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@iptvcld said in pfSense HA LAN Interfaces Only:
I guess, it's a good idea to set a public IP for monitoring (e.g. 8.8.8.8) in the LAN gateway settings. = would I do this on the primary node or secondary node?
On the secondary. This gateway should only exist on the secondary at all.
f I enable carp mant mode on the master node and I don't swing the wan fiber over to secondary node, it would simply mean no internet until that connection is made?
Of course you have to connect the WAN cable to the secondary manually in this case to get internet.
What would happen if don't don't enable carp maint mode on master and just swing over wan to secondary?
Nothing. Failover only happens when a CARP interface failing is detected on the primary.
Pulling the WAN cable from the master and connect to the secondary will simple result in loosing internet. The primary will keep staying in master mode. -
@viragomann I hope I did this correctly - I also have a OpenVPN address in the group and not sure what Tier to assign to that. I leave it default Never (not sure if that should be something else as it left it out when i pressed save)
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Master pf LAN Interface IP: 192.168.2.80
Backup pf LAN Interface IP: 192.168.2.81
LAN CARP = 192.168.2.1
Cant get the internet to flow to backup
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@viragomann hmm. Can't seem to get to working. I have turned off HA static route sync from the master node and then on the backup node I have created a new gateway using LAN pointing to the LAN interface IP of the master node and then created a Gw Group with pppoe wan as tier 1 and my new gw as tier 2 and set this group as default but still no internet. I have also included pics of what I did. Any suggestions?
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@iptvcld
The gateway and gateway group are looking correctly, but you have to troubleshoot the gateway monitoring problem.
Ensure that pinging 8.8.8.8 from 192.168.2.81 is allowed on the master and that there is an outbound NAT rule present on WAN for that source. -
@viragomann I did a test from my master to ping out to 8.8.8.8 and that works ok.
Also on master; this is what my outbound nat section looks like. I can see under source there is y LAN network 192.168.2.0/24
I am not too sure what else i should be looking at; would really appreciate your help. thank you!
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@iptvcld
I think, I've forgotten something:
On the secondary you will need to add an outbound NAT rule to LAN for 127.0.0.0/8 and switch into hybrid mode. -
@viragomann Thanks; so on my backup PF i did the below:
This did not work still then i tried this
But this did not work as well.
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@iptvcld
Keep the first one.Tried to restart the machine?
If it still doesn't take a packet capture on the LAN interface. You should see periodic pings to 8.8.8.8. As well you should see them on the masters LAN and also on the masters WAN if it works as expected.
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@viragomann I also just noticed since i made this NAT mode change from auto to hybrid and also adding the mapping on my backup PF; after the reboot, it reverted back to auto and got rid of the mapping as my master sync'd over. Should i be making this change on my master then?
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@iptvcld
Yes, you can add this rule to the master as well. It won't be used there anyway. -
@viragomann i did this on the master now and i saw it synced over to the backup. I rebooted the backup again as well.
I ran a packet capture on the LAN (backup pf) and i see a few of these lines. IP: 76.64.x.x is my wan
10:54:16.598225 IP 76.64.x.x > 8.8.8.8: ICMP echo request, id 13920, seq 321, length 9but GW still shows offline
When i run a ping to 8.8.8.8 using backup, i get this
PING 8.8.8.8 (8.8.8.8): 56 data bytes
64 bytes from 8.8.8.8: icmp_seq=0 ttl=115 time=2.599 ms--- 8.8.8.8 ping statistics ---
3 packets transmitted, 1 packets received, 66.7% packet loss
round-trip min/avg/max/stddev = 2.599/2.599/2.599/0.000 ms -
@iptvcld said in pfSense HA LAN Interfaces Only:
I ran a packet capture on the LAN (backup pf) and i see a few of these lines. IP: 76.64.x.x is my wan
10:54:16.598225 IP 76.64.x.x > 8.8.8.8: ICMP echo request, id 13920, seq 321, length 9Even if the WAN cable is disconnected??
I was assuming that the WAN is offline, so not clear, why it use the WAN IP. -
@viragomann That is correct Sir; i do not have my WAN connected to my backup pf right now
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@iptvcld
Not clear, what's wrong here.
As first step for troubleshooting you can remove the monitoring IP from the LAN gateway on the backup. Hence it should monitor the masters LAN and the gateway state should get online.
But not sure if the failover will work after. -
@viragomann I ran a packet cap again and i am seeing those monitoring requests come in as well:
11:14:31.073869 IP 8.8.8.8.853 > 192.168.2.81.17018: tcp 0
11:14:31.073887 IP 76.64.x.x.11762 > 8.8.8.8.853: tcp 0 -
@viragomann When i remove the monitoring ip from the GW; yes it puts the master LAN IP in there and yes it shows Green and Online but no internet.
Ah i really hoped this would have worked out; was such a nice idea to have.