P4ng0l1n Posted December 17, 2016 Share Posted December 17, 2016 Hi Netduma support, Just bought myself a brand new netduma, but I'm seeing some pretty strange issues which prevent me from using it at all. I have been a network engineer then software engineer working on carrier grade NAT for the past 10 years, so I would like to think I know what I'm doing and this is not a PEBKAC, but... Anyway here goes: 1) DHCP on ports 2 to 5 simply does not work, I get no answer. The link works since I'm seeing ipv6 neighbor solicitation and all, it simply refuses to answer (it did on extremely rare occasions). Here's what a sniffer trace looks like (I have the full file available for you if you can give me an email address, forum won't let me upload a pcap), for good measures I did a factory reset through the GUI then reset the router: [root@localhost ~]# tcpdump -i eth0tcpdump: verbose output suppressed, use -v or -vv for full protocol decodelistening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes18:40:22.239714 IP6 :: > ff02::16: HBH ICMP6, multicast listener report v2, 5 group record(s), length 10818:40:22.451577 IP6 :: > ff02::1:ff00:1: ICMP6, neighbor solicitation, who has fdea:6e70:50b8::1, length 2418:40:22.499554 IP6 :: > ff02::1:ffe6:1d8e: ICMP6, neighbor solicitation, who has fe80::e68d:8cff:fee6:1d8e, length 2418:40:22.499611 IP6 :: > ff02::16: HBH ICMP6, multicast listener report v2, 5 group record(s), length 10818:40:23.460937 IP6 :: > ff02::16: HBH ICMP6, multicast listener report v2, 1 group record(s), length 2818:40:23.610557 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from e4:8d:8c:e6:1d:8e (oui Unknown), length 30018:40:24.453929 IP6 fe80::e68d:8cff:fee6:1d8e > ip6-allnodes: ICMP6, router advertisement, length 11218:40:27.995830 IP6 fe80::e68d:8cff:fee6:1d8e > ff02::16: HBH ICMP6, multicast listener report v2, 1 group record(s), length 28 That was the router starting, link seems good, I'm starting my DHCP client now (ISC dhcp client on linux) [root@localhost ~]# dhclient -v eth0Internet Systems Consortium DHCP Client 4.2.2Copyright 2004-2011 Internet Systems Consortium.All rights reserved.For info, please visit https://www.isc.org/software/dhcp/Listening on LPF/eth0/28:d2:44:46:ec:45Sending on LPF/eth0/28:d2:44:46:ec:45Sending on Socket/fallbackDHCPREQUEST on eth0 to 255.255.255.255 port 67DHCPREQUEST on eth0 to 255.255.255.255 port 67DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 6DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 11DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 21DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 15 18:41:24.190612 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 28:d2:44:46:ec:45 (oui Unknown), length 30018:41:31.848971 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 28:d2:44:46:ec:45 (oui Unknown), length 30018:41:45.005457 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 28:d2:44:46:ec:45 (oui Unknown), length 30018:41:51.859926 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 28:d2:44:46:ec:45 (oui Unknown), length 30018:41:59.450264 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 28:d2:44:46:ec:45 (oui Unknown), length 300 There's just nothing coming from the duma. At router startup the DHCP request coming from the duma itself seems weird, not sure if you would expect that. My firmware version is 1.03.6h and it should be noted I had to do a hard factory reset through the button at the back (I had disabled the wifi, as I have an access point, and it stopped answering on the RJ45 ports after a bit of time). The wifi does work, I can access the GUI from there. However, similar to what I observe on port 2 to 5, the DHCP client on port 1 is unable to pull an address from the ISP router (I know I should use DMZ, I will do that once it's all working). It sends discovers but ignore any offer that is coming back. Again it worked on a couple rare occasions, but just for a couple minutes. Any thoughts? Thanks in advance Link to comment Share on other sites More sharing options...
P4ng0l1n Posted December 17, 2016 Author Share Posted December 17, 2016 I should add, it does not matter which dhcp client I use, macos shows the exact same behaviour on ports 2-5, and an asus rt-ac68u as dhcp server on port 1 gives the same result as the ISP router. Link to comment Share on other sites More sharing options...
Administrators Netduma Fraser Posted December 19, 2016 Administrators Share Posted December 19, 2016 Hey, welcome to the forum! It sounds as though you may have a faulty router would be best to have it back so we can test it. I assume you've tried the usual troubleshooting methods? Replace cables, reboot the router etc? Please email [email protected] and we can sort out a replacement for you. Link to comment Share on other sites More sharing options...
P4ng0l1n Posted December 19, 2016 Author Share Posted December 19, 2016 I did swap cables and ports around, did not help unfortunatey. I will email [email protected] then, thanks. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.