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Lan Turtle 3G Issue - Hak5 Support Hasen't Responded In A While

corabrickdog

By corabrickdog
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corabrickdog Newbie

corabrickdog

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Hey all,

 

I ordered my Lan Turtle 3G on December 1st. It arrived fine and everything worked well out of the box. I plugged it into my Mac Book Pro and into my ethernet switch. Modules worked great, I was able to access everything online through my Mac with the turtle providing ethernet to it. But this turtle was running the Turtle Shell Version 3, so I updated it using the normal "check for updates" option in the "configuration" tab through the turtle's SSH. The update went fine but when the turtle came back online it could not provide my Mac with any internet. I was still able to SSH into the turtle with the self assigned IP address of 172.16.84.1 and the turtle said it was now running Turtle Version 5. When I ran 'ifconfig' it showed the self assigned IP address of 172.16.84.1 in eth0 and a DHCP address in eth1 which was assigned from my router (10.10.x.x). I could not check for updates, download modules, or ping google.com from the turtle (via SSH) or from my Mac when the turtle was plugged into it with ethernet.

 

I contacted Hak5 support and after a day or so they offered to send me a new Lan Turtle 3G. I received that one and had the same issue when the turtle updated to Turtle Version 5. I told the same support tech that the issue persisted on the new turtle, she verified with me that I had both plugged the turtle into an ethernet cord and into my Mac but after a few back and fourths she never replied to my email. My last response with Hak5 via email was on March 7th.

 

I'm able to run everything and use the turtle fine when it is on Turtle Version 3 but as soon as I upgrade to Turtle Version 5 the turtle is unable to do anything that required a DHCP address or internet even though I can see it has been assigned one when I SSH into the turtle and run 'ifconfig'.

 

If anyone is able to help me figure this issue out and get my Lan Turtle 3G to work properly on Turtle Version 5 it would be greatly appreciated.

 

Thanks!

 

This issue has been solved. See my last post for solution if anyone else is having this issue.

Edited by corabrickdog
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Just_a_User Newbie

Just_a_User

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38 minutes ago, corabrickdog said:

 

If anyone is able to help me figure this issue out and get my Lan Turtle 3G to work properly on Turtle Version 5 it would be greatly appreciated.

You are in a nice position with 2x units to compare configs etc.in the two units. I would be interested in seeing the /etc/config/network and /etc/config/firewall from each unit.

Also have you factory reset each one? using the 192.168.... adddress? https://docs.hak5.org/hc/en-us/articles/360010471134-Factory-Reset

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corabrickdog Newbie

corabrickdog

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3 minutes ago, Just_a_User said:

You are in a nice position with 2x units to compare configs etc.in the two units. I would be interested in seeing the /etc/config/network and /etc/config/firewall from each unit.

Also have you factory reset each one? using the 192.168.... adddress? https://docs.hak5.org/hc/en-us/articles/360010471134-Factory-Reset

Thanks for the reply. As requested here is the output for the turtle on version 3: 

root@turtle:~# cat /etc/config/network

config interface 'loopback'
    option ifname 'lo'
    option proto 'static'
    option ipaddr '127.0.0.1'
    option netmask '255.0.0.0'

config interface 'lan'
    option ifname 'eth0'
    option proto 'static'
    option ipaddr '172.16.84.1'
    option gateway '172.16.84.84'
    option netmask '255.255.255.0'
    option ip6assign '60'
    option metric '30'

config interface 'wan'
    option ifname 'eth1'
    option proto 'dhcp'
    option metric '20'

config interface 'wan6'
    option ifname '@wan'
    option proto 'dhcpv6'
    option metric '20'

config interface 'vpn'
    option ifname 'tun0'
    option proto 'dhcp'

config interface '3gwan'
    option device '/dev/ttyACM0'
    option proto '3g'
    option service 'umts'
    option dns '8.8.8.8'
    option metric '10'
    option disabled '0'

root@turtle:~#

root@turtle:~# cat /etc/config/firewall
config defaults
    option syn_flood    1
    option input        REJECT
    option output        REJECT
    option forward        REJECT
# Uncomment this line to disable ipv6 rules
#    option disable_ipv6    1

config zone
    option name        lan
    list   network        'lan'
    option input        ACCEPT
    option output        ACCEPT
    option forward        ACCEPT

config zone
    option name        wan
    list   network        'wan'
    list   network        'wan6'
    option input        REJECT
    option output        ACCEPT
    option forward        ACCEPT
    option masq        1
    option mtu_fix        1

config zone
    option name        3gwan
    list   network        '3gwan'
    option input        REJECT
    option output        ACCEPT
    option forward        REJECT
    option masq        1
    option mtu_fix        1

config forwarding
    option src        lan
    option dest        wan

# We need to accept udp packets on port 68,
# see https://dev.openwrt.org/ticket/4108
config rule
    option name        Allow-DHCP-Renew
    option src        wan
    option proto        udp
    option dest_port    68
    option target        ACCEPT
    option family        ipv4

# Allow IPv4 ping
config rule
    option name        Allow-Ping
    option src        wan
    option proto        icmp
    option icmp_type    echo-request
    option family        ipv4
    option target        ACCEPT

config rule
    option name        Allow-IGMP
    option src        wan
    option proto        igmp
    option family        ipv4
    option target        ACCEPT

# Allow DHCPv6 replies
# see https://dev.openwrt.org/ticket/10381
config rule
    option name        Allow-DHCPv6
    option src        wan
    option proto        udp
    option src_ip        fe80::/10
    option src_port        547
    option dest_ip        fe80::/10
    option dest_port    546
    option family        ipv6
    option target        ACCEPT

config rule
    option name        Allow-MLD
    option src        wan
    option proto        icmp
    option src_ip        fe80::/10
    list icmp_type        '130/0'
    list icmp_type        '131/0'
    list icmp_type        '132/0'
    list icmp_type        '143/0'
    option family        ipv6
    option target        ACCEPT

# Allow essential incoming IPv6 ICMP traffic
config rule
    option name        Allow-ICMPv6-Input
    option src        wan
    option proto    icmp
    list icmp_type        echo-request
    list icmp_type        echo-reply
    list icmp_type        destination-unreachable
    list icmp_type        packet-too-big
    list icmp_type        time-exceeded
    list icmp_type        bad-header
    list icmp_type        unknown-header-type
    list icmp_type        router-solicitation
    list icmp_type        neighbour-solicitation
    list icmp_type        router-advertisement
    list icmp_type        neighbour-advertisement
    option limit        1000/sec
    option family        ipv6
    option target        ACCEPT

# Allow essential forwarded IPv6 ICMP traffic
config rule
    option name        Allow-ICMPv6-Forward
    option src        wan
    option dest        *
    option proto        icmp
    list icmp_type        echo-request
    list icmp_type        echo-reply
    list icmp_type        destination-unreachable
    list icmp_type        packet-too-big
    list icmp_type        time-exceeded
    list icmp_type        bad-header
    list icmp_type        unknown-header-type
    option limit        1000/sec
    option family        ipv6
    option target        ACCEPT

# include a file with users custom iptables rules
config include
    option path /etc/firewall.user


### EXAMPLE CONFIG SECTIONS
# do not allow a specific ip to access wan
#config rule
#    option src        lan
#    option src_ip    192.168.45.2
#    option dest        wan
#    option proto    tcp
#    option target    REJECT

# block a specific mac on wan
#config rule
#    option dest        wan
#    option src_mac    00:11:22:33:44:66
#    option target    REJECT

# block incoming ICMP traffic on a zone
#config rule
#    option src        lan
#    option proto    ICMP
#    option target    DROP

# port redirect port coming in on wan to lan
#config redirect
#    option src            wan
#    option src_dport    80
#    option dest            lan
#    option dest_ip        192.168.16.235
#    option dest_port    80
#    option proto        tcp

# port redirect of remapped ssh port (22001) on wan
#config redirect
#    option src        wan
#    option src_dport    22001
#    option dest        lan
#    option dest_port    22
#    option proto        tcp

# allow IPsec/ESP and ISAKMP passthrough
config rule
    option src        wan
    option dest        lan
    option proto        esp
    option target        ACCEPT

config rule
    option src        wan
    option dest        lan
    option dest_port    500
    option proto        udp
    option target        ACCEPT

### FULL CONFIG SECTIONS
#config rule
#    option src        lan
#    option src_ip    192.168.45.2
#    option src_mac    00:11:22:33:44:55
#    option src_port    80
#    option dest        wan
#    option dest_ip    194.25.2.129
#    option dest_port    120
#    option proto    tcp
#    option target    REJECT

#config redirect
#    option src        lan
#    option src_ip    192.168.45.2
#    option src_mac    00:11:22:33:44:55
#    option src_port        1024
#    option src_dport    80
#    option dest_ip    194.25.2.129
#    option dest_port    120
#    option proto    tcp
root@turtle:~#

 

And for version 5: 

root@turtle:~# cat /etc/config/network

config interface 'loopback'
    option ifname 'lo'
    option proto 'static'
    option ipaddr '127.0.0.1'
    option netmask '255.0.0.0'

config interface 'lan'
    option ifname 'eth0'
    option proto 'static'
    option ipaddr '172.16.84.1'
    option gateway '172.16.84.84'
    option netmask '255.255.255.0'
    option ip6assign '60'
    option metric '30'

config interface 'wan'
    option ifname 'eth1'
    option proto 'dhcp'
    option metric '20'
    option ip4table '200'

config interface 'wan6'
    option ifname '@wan'
    option proto 'dhcpv6'
    option metric '20'

config interface 'vpn'
    option ifname 'tun0'
    option proto 'dhcp'

config interface '3gwan'
    option device '/dev/ttyACM0'
    option proto '3g'
    option service 'umts'
    option dns '8.8.8.8'
    option metric '10'
    option disabled '0'

root@turtle:~# cat /etc/config/firewall
config defaults
    option syn_flood    1
    option input        REJECT
    option output        REJECT
    option forward        REJECT
# Uncomment this line to disable ipv6 rules
#    option disable_ipv6    1

config zone
    option name        lan
    list   network        'lan'
    option input        ACCEPT
    option output        ACCEPT
    option forward        ACCEPT

config zone
    option name        wan
    list   network        'wan'
    list   network        'wan6'
    option input        REJECT
    option output        ACCEPT
    option forward        ACCEPT
    option masq        1
    option mtu_fix        1

config zone
    option name        3gwan
    list   network        '3gwan'
    option input        REJECT
    option output        ACCEPT
    option forward        REJECT
    option masq        1
    option mtu_fix        1

config forwarding
    option src        lan
    option dest        wan


config zone 'vpn'
    option name 'vpn'
    option network 'vpn'
    option input 'ACCEPT'
    option forward 'REJECT'
    option output 'ACCEPT'
    option masq '1'

config forwarding 'vpn_forwarding_lan_in'
    option src 'vpn'
    option dest 'lan'

config forwarding 'vpn_forwarding_lan_out'
    option src 'lan'
    option dest 'vpn'

# We need to accept udp packets on port 68,
# see https://dev.openwrt.org/ticket/4108
config rule
    option name        Allow-DHCP-Renew
    option src        wan
    option proto        udp
    option dest_port    68
    option target        ACCEPT
    option family        ipv4

# Allow IPv4 ping
config rule
    option name        Allow-Ping
    option src        wan
    option proto        icmp
    option icmp_type    echo-request
    option family        ipv4
    option target        ACCEPT

config rule
    option name        Allow-IGMP
    option src        wan
    option proto        igmp
    option family        ipv4
    option target        ACCEPT

# Allow DHCPv6 replies
# see https://dev.openwrt.org/ticket/10381
config rule
    option name        Allow-DHCPv6
    option src        wan
    option proto        udp
    option src_ip        fe80::/10
    option src_port        547
    option dest_ip        fe80::/10
    option dest_port    546
    option family        ipv6
    option target        ACCEPT

config rule
    option name        Allow-MLD
    option src        wan
    option proto        icmp
    option src_ip        fe80::/10
    list icmp_type        '130/0'
    list icmp_type        '131/0'
    list icmp_type        '132/0'
    list icmp_type        '143/0'
    option family        ipv6
    option target        ACCEPT

# Allow essential incoming IPv6 ICMP traffic
config rule
    option name        Allow-ICMPv6-Input
    option src        wan
    option proto    icmp
    list icmp_type        echo-request
    list icmp_type        echo-reply
    list icmp_type        destination-unreachable
    list icmp_type        packet-too-big
    list icmp_type        time-exceeded
    list icmp_type        bad-header
    list icmp_type        unknown-header-type
    list icmp_type        router-solicitation
    list icmp_type        neighbour-solicitation
    list icmp_type        router-advertisement
    list icmp_type        neighbour-advertisement
    option limit        1000/sec
    option family        ipv6
    option target        ACCEPT

# Allow essential forwarded IPv6 ICMP traffic
config rule
    option name        Allow-ICMPv6-Forward
    option src        wan
    option dest        *
    option proto        icmp
    list icmp_type        echo-request
    list icmp_type        echo-reply
    list icmp_type        destination-unreachable
    list icmp_type        packet-too-big
    list icmp_type        time-exceeded
    list icmp_type        bad-header
    list icmp_type        unknown-header-type
    option limit        1000/sec
    option family        ipv6
    option target        ACCEPT

# include a file with users custom iptables rules
config include
    option path /etc/firewall.user


### EXAMPLE CONFIG SECTIONS
# do not allow a specific ip to access wan
#config rule
#    option src        lan
#    option src_ip    192.168.45.2
#    option dest        wan
#    option proto    tcp
#    option target    REJECT

# block a specific mac on wan
#config rule
#    option dest        wan
#    option src_mac    00:11:22:33:44:66
#    option target    REJECT

# block incoming ICMP traffic on a zone
#config rule
#    option src        lan
#    option proto    ICMP
#    option target    DROP

# port redirect port coming in on wan to lan
#config redirect
#    option src            wan
#    option src_dport    80
#    option dest            lan
#    option dest_ip        192.168.16.235
#    option dest_port    80
#    option proto        tcp

# port redirect of remapped ssh port (22001) on wan
#config redirect
#    option src        wan
#    option src_dport    22001
#    option dest        lan
#    option dest_port    22
#    option proto        tcp

# allow IPsec/ESP and ISAKMP passthrough
config rule
    option src        wan
    option dest        lan
    option proto        esp
    option target        ACCEPT

config rule
    option src        wan
    option dest        lan
    option dest_port    500
    option proto        udp
    option target        ACCEPT

### FULL CONFIG SECTIONS
#config rule
#    option src        lan
#    option src_ip    192.168.45.2
#    option src_mac    00:11:22:33:44:55
#    option src_port    80
#    option dest        wan
#    option dest_ip    194.25.2.129
#    option dest_port    120
#    option proto    tcp
#    option target    REJECT

#config redirect
#    option src        lan
#    option src_ip    192.168.45.2
#    option src_mac    00:11:22:33:44:55
#    option src_port        1024
#    option src_dport    80
#    option dest_ip    194.25.2.129
#    option dest_port    120
#    option proto    tcp
root@turtle:~#

  Yes I have factory reset each one. Uploading Version 3 and Version 5 for both, which results in the same issue when the turtle is on Version 5.

 

Thanks again for the reply.

 

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Just_a_User Newbie

Just_a_User

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Posted
8 minutes ago, corabrickdog said:

Yes I have factory reset each one. Uploading Version 3 and Version 5 for both

Before I start comparing the configs, when you flashed the factory reset firmwares... did you upload upgrade files or the special factory version? Maybe you had an old V3 factory version of the FW?

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corabrickdog Newbie

corabrickdog

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Posted

Looking at the differences, it looks like the version 5 has an additional line here: 

config interface 'wan'
    option ifname 'eth1'
    option proto 'dhcp'
    option metric '20'
    option ip4table '200'
Vs version 3 which is missing the last line: 
config interface 'wan'
    option ifname 'eth1'
    option proto 'dhcp'
    option metric '20'
      

In addition version 5 adds a whole VPN sections which version 3 does not: 

config zone 'vpn'
    option name 'vpn'
    option network 'vpn'
    option input 'ACCEPT'
    option forward 'REJECT'
    option output 'ACCEPT'
    option masq '1'

config forwarding 'vpn_forwarding_lan_in'
    option src 'vpn'
    option dest 'lan'

config forwarding 'vpn_forwarding_lan_out'
    option src 'lan'
    option dest 'vpn'
      

And that seems to be the only two differences..

Maybe the VPN sections screws with how the turtle provides internet?

     
       
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corabrickdog Newbie

corabrickdog

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Posted
9 minutes ago, Just_a_User said:

Before I start comparing the configs, when you flashed the factory reset firmwares... did you upload upgrade files or the special factory version? Maybe you had an old V3 factory version of the FW?

I just tried it to make sure I wasen't crazy but unfortunately the issue is still the same even with a factory bin 😞

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Just_a_User Newbie

Just_a_User

Posted
Posted
4 minutes ago, corabrickdog said:

Maybe the VPN sections screws with how the turtle provides internet? 

I have a feeling the VPN addition is possibly for the Hak5 C2 communication. Either that or pre-empting the openvpn module maybe.

 

 

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Just_a_User Newbie

Just_a_User

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Posted
3 minutes ago, corabrickdog said:

I just tried it to make sure I wasen't crazy but unfortunately the issue is still the same even with a factory bin 😞

Worth a check 🙂

Are you running without SIM cards? if so did you enable LAN fallover if no 3g?

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Jtyle6 Proficient

Jtyle6

Posted
Posted

My windows 10 box was playing havoc with the confg of the sim card. 

So I plugged it into my Rpi3+ running Kali Linux and worked. 

What type of sim card are you using. 

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corabrickdog Newbie

corabrickdog

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On 4/2/2019 at 3:15 PM, Just_a_User said:

Worth a check 🙂

Are you running without SIM cards? if so did you enable LAN fallover if no 3g?

 

This totally fixed my issue, I feel a little dumb that I never noticed in Turtle Version 5 the option to enable a Wan Fallback is available. After enabling that my turtle was able to use the internet. Here is the option if anybody else is as dumb as me..

jiUn5Pg.png

Although the turtle was now able to use the internet - it was still not passing through to my Mac. In order to fix that, I had to go into /etc/config/dhcp and change: 

config odhcpd 'odhcpd'
        option maindhcp '0'
        option leasefile '/tmp/hosts/odhcpd'
        option leasetrigger '/usr/sbin/odhcpd-update'

To this: 

config odhcpd 'odhcpd'
        option maindhcp '1'
        option leasefile '/tmp/hosts/odhcpd'
        option leasetrigger '/usr/sbin/odhcpd-update'

After changing those two settings my LanTurtle3G is working perfectly.

 

Thanks to @Just_a_User for all their help.

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