topic Re: samsung TV DHCP in Tech Help - Software/Hardware etc

samsung TV DHCP

rongtw — Mon, 01 Aug 2016 06:27:17 GMT

i have a annoyance i have found the problem but cannot find how to fix it , My Router logs continuosly gives this error

"dnsmasq-dhcp[22989]: not giving name localhost to the DHCP lease of 192.168.1.112 because the name exists in /etc/hosts with address 127.0.0.1"

The problem acording to Mr Google is my Smart TV Name , i cannot remove the brackets within the TV settings it shows as

[TV] samsung ,, and cannot remove the braceted TV

I dont think its causing any problems except being a annoyance to myself seeing it fill router log .

I have the ASUS DSL ac68u witth latest firmware , i am only a beginer at networking so if you know the explanation Simple is good

Re: samsung TV DHCP

bobpullen — Mon, 01 Aug 2016 12:26:59 GMT

Does the router have an option to 'always assign the same IP address' to the TV? I'm wondering if it helps to assign a static local address via DHCP. If that doesn't help, doe the TV allow you to specify a static local address in the settings menus?

Bit off topic but I have a Samsung Smart TV and I've noticed it making outbound requests to a couple of host names every few minutes that no longer exist in DNS so the lookups fail, eg:

12:35:05, 01 Aug.DNS name resolution failure (sd1pwpki006.centricaplc.com)
12:32:35, 01 Aug.DNS name resolution failure (euontv.internetat.tv)
12:32:35, 01 Aug.DNS name resolution failure (euontv.internetat.tv)
12:27:35, 01 Aug.DNS name resolution failure (euontv.internetat.tv)
12:27:35, 01 Aug.DNS name resolution failure (euontv.internetat.tv)
12:22:35, 01 Aug.DNS name resolution failure (euontv.internetat.tv)
12:22:35, 01 Aug.DNS name resolution failure (euontv.internetat.tv)
12:17:35, 01 Aug.DNS name resolution failure (euontv.internetat.tv)

I contacted Samsung about it a while back but they didn't seem interested and told me to speak to my ISP instead

Re: samsung TV DHCP

VileReynard — Mon, 01 Aug 2016 13:49:11 GMT

All sensible hardware has a network name of localhost which it uses to refer to itself.

Unfortunately, this crappy Samsung doesn't know this and asks the router to give a local IP address for localhost. Since the router has already allocated localhost to itself, it knows this is an error.

BTW Those log entries [correction] maybe shouldn't give DNS faults:-

jeremy@hector ~ $ dig sd1pwpki006.centricaplc.com

; <<>> DiG 9.9.5-9+deb8u6-Debian <<>> sd1pwpki006.centricaplc.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 8186
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1280
;; QUESTION SECTION:
;sd1pwpki006.centricaplc.com.	IN	A

;; AUTHORITY SECTION:
centricaplc.com.	21155	IN	SOA	ns1.netnames.net. hostmaster.netnames.net. 2016071300 10800 1800 3600000 21600

;; Query time: 13 msec
;; SERVER: 192.168.1.1#53(192.168.1.1)
;; WHEN: Mon Aug 01 14:36:29 BST 2016
;; MSG SIZE  rcvd: 119

jeremy@hector ~ $ dig euontv.internetat.tv

; <<>> DiG 9.9.5-9+deb8u6-Debian <<>> euontv.internetat.tv
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 27192
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1280
;; QUESTION SECTION:
;euontv.internetat.tv.		IN	A

;; ANSWER SECTION:
euontv.internetat.tv.	112	IN	CNAME	PRD-ONTV-OPENAPI-ELB-Ireland-1619449922.eu-west-1.elb.amazonaws.com.

;; AUTHORITY SECTION:
eu-west-1.elb.amazonaws.com. 59	IN	SOA	ns-1053.awsdns-03.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 60

;; Query time: 13 msec
;; SERVER: 192.168.1.1#53(192.168.1.1)
;; WHEN: Mon Aug 01 14:36:55 BST 2016
;; MSG SIZE  rcvd: 212

Re: samsung TV DHCP

bobpullen — Mon, 01 Aug 2016 14:02:06 GMT

@VileReynard wrote:
BTW Those log entries [correction] maybe shouldn't give DNS faults:-

Why? The output from your dig commands showns one of the domains lacking any forward A/CNAME records, whilst the other has a CNAME that points to a non-existent domain?

Re: samsung TV DHCP

rongtw — Mon, 01 Aug 2016 14:01:18 GMT

Cheers Bob i cannot change any settings on TV

but i have already set in router TV a static address , but most i have read says the problem lies with the TV