Class A Addresses
biltritepc last edited by
Does 2.0 not like class-A private addresses? The IP scheme where I work uses a class-A (10.x.x.x) with a 24-bit subnet ie 10.10.85.0 /24. PFsense 1.23 didn't have a problem with this scheme, but it freezes 2.0. If I set the LAN to that type of address, it locks up. If I have it connected to a VPN with that type of ip scheme, it will lock it up as well.
wallabybob last edited by
I think its unlikely that use of a 24 bit subnet would cause pfsense to "freeze". Please describe what you mean by "freeze": the whole system "locks up" and doesn't respond to commands from the console? pings to the LAN interface don't get a response? Internet access through the box stalls? The web GUI fails to respond but "in progress" downloads continue? something else?
If I set the LAN to that type of address, it locks up.
Presumably you begin with the LAN interface set to a IP address with a much smaller number of subnet bits. At what stage does the lockup occur?
What interfaces are in use on your box? (e.g. LAN is em0, WAN is fxp0 and OPT1 is rl0)
biltritepc last edited by
I've tried it with a couple of different hardware configurations. I've tried by upgrading an existing 1.23 installation (where I initally discovered the problem) and by trying the configuration on a fresh 2.0 install. I have one WAN interface on one NIC and one LAN interface on a seperate NIC.
By "freezing" or "locking up" - The router will work initally on reboot, but only for a brief time - maybe 30-60 seconds. During that time, everthing seems to initally work normally, but then quits. After that time, the LAN interface quits communicating, ie no traffic, no dhcp, no ping. The console also eventually quits responding shortly after the LAN interface does. If you hard power-off the router and reboot, the same events repeat. If you change the IP back to a class-C, the router works normally.
All I can say is try it and see for yourself. Set the LAN IP to 10.10.123.1 /24 and see what happens…
jlepthien last edited by
First of all if you use CIDR like /24 then your net is not class A….
I am using a class C net 10.0.100.0/24 at home and have no problems at all...
hec last edited by
Every network between 0.0.0.0 to 127.255.255.255 is a class a network. The CIDR can also be /24 and need net to be /8.
you can say that 0.0.0.0 to 127.255.255.255 is a Class A, but since 1993 is pretty much meaningless is it not. Sure people still use Class to mean /8 or B to mean /16, etc.
But I personally would not consider Anything/24 as A – I would agree with jlepthien /24 could be called class C address as a way to denote the 24 bit mask - and may people still call it that, its a easy to way to to say /24
But the Class A/B/C network address assignment system was deprecate many many years ago for classless, hierarchical blocks of IP addresses (prefixes).
take a look at rfc 4632
notation addrs/block # blocks -------- ----------- ---------- n.n.n.n/32 1 4294967296 "host route" n.n.n.x/31 2 2147483648 "p2p link" n.n.n.x/30 4 1073741824 n.n.n.x/29 8 536870912 n.n.n.x/28 16 268435456 n.n.n.x/27 32 134217728 n.n.n.x/26 64 67108864 n.n.n.x/25 128 33554432 n.n.n.0/24 256 16777216 legacy "Class C" n.n.x.0/23 512 8388608 n.n.x.0/22 1024 4194304 n.n.x.0/21 2048 2097152 n.n.x.0/20 4096 1048576 n.n.x.0/19 8192 524288 n.n.x.0/18 16384 262144 n.n.x.0/17 32768 131072 n.n.0.0/16 65536 65536 legacy "Class B" n.x.0.0/15 131072 32768 n.x.0.0/14 262144 16384 n.x.0.0/13 524288 8192 n.x.0.0/12 1048576 4096 n.x.0.0/11 2097152 2048 n.x.0.0/10 4194304 1024 n.x.0.0/9 8388608 512 n.0.0.0/8 16777216 256 legacy "Class A" x.0.0.0/7 33554432 128 x.0.0.0/6 67108864 64 x.0.0.0/5 134217728 32 x.0.0.0/4 268435456 16 x.0.0.0/3 536870912 8 x.0.0.0/2 1073741824 4 x.0.0.0/1 2147483648 2 0.0.0.0/0 4294967296 1 "default route"
Notice the "legacy" statements next to /8, /16 and /24.. But your statement of 10.x.x.x/24 being a class A is not correct, and has not been correct for many many many years.
Its clear you got something going on, but i find it unlikely that is has anything to do with using a /24 on a address that falls under what once was a class A network. I personally use the 192.168 private range on my network with a /24 – but I am quite sure I could change that to be 10.1.2.0/24 if I wanted to without any issues.
DeadNewbie last edited by
I Agree with Johnpoz, 0.0.0.0 - 188.8.131.52 used to be classed as 'Class A' but since the introduction of Classless routing such boundaries no longer exist.
in answer to BILTRITEPC, I can say pf2.0 has no problems with using 10.10.123.1/24 on the LAN if, I have built a test box and have just pinged it successfully for the last 10 mins without a hickup.
I use a 10.x.x.x/24 (Actually I have 4 of them) on my home network and they all work perfectly using PF2.0 to route between them.
Can you check that all settings are correct ie, lan DNS server is running, WAN DNS servers( listed in the general settings) are running and they can be used to resolve FQDN's.
what are the WAN and LAN ip's
Something is wrong and I would like to help.