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Hello Forum,

I've ran into a small issue and I wish you guys to help me out if you have spare time.

I have a firewall computer with 3 Eth cards and this serves as the firewall (with ClearOS installed).
Eth1 -> Internet
Eth2 -> Internal LAN (With ip range of 10.0.0.X)
Eth3 -> DMZ with internet (With ip range of 192.168.1.x)

I was able to forward the internet to the Eth2 network zone and they are working fine. However on the Eth3 (guest network) I can't seem to fetch an IP address. I think I've set the DHCP leases up right, so know I have no other ideas what could go wrong. Do you have any idea or maybe you need any additional information?

Thanks in advance!

Bert
Tuesday, November 08 2016, 08:23 AM
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  • Accepted Answer

    Wednesday, November 09 2016, 06:01 PM - #Permalink
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    Hi, I added your feature request to the forum feature request list.
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  • Accepted Answer

    Wednesday, November 09 2016, 06:23 AM - #Permalink
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    Can you post /etc/dnsmasq.d/dhcp.conf
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  • Accepted Answer

    Tuesday, November 08 2016, 06:38 PM - #Permalink
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    Bother. You use PPPoE. Do you by any chance know what the LAN subnet of your bridged modem is? Alternatively, can you change the enp2s10 subnet to something else such as 192.168.2.1/24?
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  • Accepted Answer

    Tuesday, November 08 2016, 02:30 PM - #Permalink
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    Please excuse me, I've XXX-ed out our IP address and other personal data, since it is static and we have already enough attackers :) Not like you wish to come and rumble, but crawlers who search for IPs in forums are likely to attack via this post.

    enp1s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
    inet6 ab01::cd23:ef45:gh56:91f1 prefixlen 64 scopeid 0x20<link>
    --
    enp2s8: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
    inet 10.0.0.1 netmask 255.255.255.0 broadcast 10.0.0.255
    --
    enp2s10: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
    inet 192.168.1.1 netmask 255.255.255.0 broadcast 192.168.1.255
    --
    lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
    inet 127.0.0.1 netmask 255.0.0.0
    --
    ppp0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1480
    inet XX.XX.XX.XXX netmask 255.255.255.255 destination XXX.XX.XX.XXX


    01:00.0 Ethernet controller: Qualcomm Atheros QCA8171 Gigabit Ethernet (rev 10)
    Subsystem: ASRock Incorporation Device 10a1
    Kernel driver in use: alx
    02:08.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8100/8101L/8139 PCI Fast Ethernet Adapter (rev 10)
    Subsystem: Realtek Semiconductor Co., Ltd. RTL-8100/8101L/8139 PCI Fast Ethernet Adapter
    Kernel driver in use: 8139too
    02:0a.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8100/8101L/8139 PCI Fast Ethernet Adapter (rev 10)
    Subsystem: Realtek Semiconductor Co., Ltd. RTL-8100/8101L/8139 PCI Fast Ethernet Adapter
    Kernel driver in use: 8139too
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  • Accepted Answer

    Tuesday, November 08 2016, 01:16 PM - #Permalink
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    If it is ClearOS 7.x then the command I need the output of is different "ifconfig | grep flags -A 1". You may as well also do an "lspci -k | grep Eth -A 3".
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  • Accepted Answer

    Tuesday, November 08 2016, 01:00 PM - #Permalink
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    Sorry, it was my mistake to name them eth. We are talking about a ClearOS 7 Community edition.

    ether d0:50:99:9b:91:f1 txqueuelen 1000 (Ethernet)
    RX packets 0 bytes 0 (0.0 B)
    --
    ether 00:e0:4c:ea:b9:55 txqueuelen 1000 (Ethernet)
    RX packets 78688752 bytes 7026254862 (6.5 GiB)
    --
    ether 00:50:bf:5a:67:3d txqueuelen 1000 (Ethernet)
    RX packets 19184 bytes 8796646 (8.3 MiB)

    Here are the screenshots of the webconfigs requested part:

    http://kepfeltoltes.hu/161108/dhcp_www.kepfeltoltes.hu_.png

    http://kepfeltoltes.hu/161108/dhcp1_www.kepfeltoltes.hu_.png

    http://kepfeltoltes.hu/161108/dhcp2_www.kepfeltoltes.hu_.png (10.0.0.1 is the self IP)
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  • Accepted Answer

    Tuesday, November 08 2016, 12:28 PM - #Permalink
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    What is the output of "ifconfig | grep -i eth -A 1". Also can you do a couple of screen dumps of the DHCP configuration pages for the two interfaces? Can you also confirm the version or ClearOS? Eth interfaces suggest 6.x
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