Tom's Guide | Tom's Hardware | Tom's Games
 |
 |
 |
ping resolves all hostnames on an internal
LAN to an external ip
Hello all,I'm havin windows 2003 sp1 as a DC, i've got
5
machines that are acting as clients, the prb
is
that whenever i try to ping any of the
machines
using their hostnames, the reply comes frm
some
ip address that is out of the network like
in
mycase i'm gettin a reply frm
69.64.155.124....
plz, guide me, how to resolve this issue...
Wow, I get the same thing. I pinged an XP box from FreeBSD, both on my LAN.
PING dbb325329c7 (8.15.7.117): 56 data bytes
64 bytes from 8.15.7.117: icmp_seq=0 ttl=247 time=17.408 ms
64 bytes from 8.15.7.117: icmp_seq=1 ttl=247 time=18.622 ms
64 bytes from 8.15.7.117: icmp_seq=2 ttl=247 time=17.615 ms
64 bytes from 8.15.7.117: icmp_seq=3 ttl=247 time=16.619 ms
^C
--- dbb325329c7 ping statistics ---
4 packets transmitted, 4 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 16.619/17.566/18.622/0.714 ms
0 
Usual reason for this is the local dns server is not properly configured or the workstation dns entries point to the router/isp dns not the DC.
Proper config is for wksts being dhcp clients of the server. Dhcp is set to auto update dns. Dns has the isp's dns servers listed in the forwarders tab [not to be confused with the forward lookup zone]. Local name resolution is handled by the ms dns server. Internet name resolution goes to the ms dns server which then forwards the request to the isp's dns server for resolution.
Example of Oxymoron:
Person who is pro life and anti sex education.
Education is key to prevention. Prevent conception you prevent abortion.Abstinence training clearly isn't working.
0
Hi wanderer,
well i don't know wat exactly is happening, well hope by adding some details, you may be able to get in what kinna situation i am:
well our network was previously running on workgroup, with sonicwall firewall configured as a DHCP server n for DNS all the machines used the DNS provided by the ISP...
now i was asked to get that network configured for domain, for that i configured one of the machine as the dc, n added two clients under it, well not the entire network, so the major part of the network is still a workgroup... now when i pinged any machine includin those in domain as well as in the workgroup frm the dc or the client machines(of the dc)... i got a reply frm this ip address that is out of the network...
earlier i had installed DNS on the dc, in order to sort out the prb, i even uninstalled that, but things remained unchanged, pingin by ip address worked fine, but pingin by hostnames gave me a response frm an ip address that does not exist in our network. Infact if i ping any machine by hostname (even those hostname that don't exist)........ i'm gettin the reply frm the same ip address....Note: the workgroup is workin absolutely fine, pingin by hostnames/ip-address gives the desired reply.....
well so does that clarify the things... that firewall is still acting as a DHCP server......
0
I don't use DHCP. All my IPs are static. The DNS on the workstations belong to the ISP. There is no server on my LAN, it's just a workgroup.
0
i don't think so dhcp makes any difference... well there's one more machine havin win2003 server installed, but it does not have active directory installed, n thats workin perfectly fine..... so is there some settin in the active directory that has led to such a thing....
0
I asked the question in another forum and I was told to do an nslookup on my on machine. I did it and it resolved to the same IP.
C:\>nslookup dbb325329c7
Server: nsnyny01.verizon.net
Address: 68.237.161.12Non-authoritative answer:
Name: dbb325329c7
Addresses: 8.15.7.117, 63.251.179.13Then I did an nslookup from XP but the query was for a Vista box.
C:\>nslookup my-pc
Server: nsnyny01.verizon.net
Address: 68.237.161.12Non-authoritative answer:
Name: my-pc
Addresses: 63.251.179.13, 8.15.7.117I am being told that since the DNS can find a FQDN, it just stops and throws a random IP. I think that's what the guy is saying but I'll ask for clarification.
0
I just did an nslookup on a machine that's not even on my LAN. I took the machine name from a ipconfig /all output on the net.
C:\>nslookup d-6f6zu0k404v
Server: nsnyny01.verizon.net
Address: 68.237.161.12Non-authoritative answer:
Name: d-6f6zu0k404v
Addresses: 8.15.7.117, 63.251.179.13It's all bogus.
0
It would appear to me your isps dns server isn't quite right. Here is my results of exactly the same command
C:\Users\cccc>nslookup d-6f6zu0k404v
Server: dnscache-or.integraonline.com
Address: 204.130.255.3:53*** dnscache-or.integraonline.com can't find d-6f6zu0k404v: Non-existent domain
lavi_17_1985 you can't uninstall DNS on a DC or you have no Active Directory. AD is built upon dns.
Example of Oxymoron:
Person who is pro life and anti sex education.
Education is key to prevention. Prevent conception you prevent abortion.Abstinence training clearly isn't working.
0
well........ if all u are facin a prb similar to mine..... then i have solution, takin my scenario i'll explain how i sorted it out... "primary DNS suffix for this computer", it is responsible for all the menace... actually wats happenin is, after gettin the machines under a domain, the default characterstic of the dc is fix "primary dns suffix for this computer" as the name of the active directory.... guapo, try to check that entry....... fix it, wat is happenin is that, if the internal hostname doesn't gets resolved, it gets redirected to the internet, n frm there u get a reply frm any random ip......... try it... i'll keep u updated....... if i comeup with any other solution i'll let u kno
0
lavi_17_1985 Since I don't have a DNS on the LAN, the query is going to the net as you said, but I should have the same response that wanderer is getting.
0
well guapo, do u have any firewall in ur network or any machine that is actin as a proxy server... can u define ur network, like how is network established, n whether u're usin a static public ip......... if u can provide the details, i'll be able to help u better... well dunno much, but still learnt a lot frm this prb..... so now havin some experience... :P
0
well wanderer...
i jus uninstalled the dns server frm the machine, to install/uninstall it, u can find it at add or remove window components... i meant that DNS mite be u were thinkin of somethin else...
0
Other people tell me that it's a Verizon redirect that is causing it to happen to me.
Although it was interesting to know why it was happening, it's really not a problem since I usually use the whois command on FreeBSD for queries on domains. I never really liked nslookup. The whois output it much more complete.
To answer your question anyway, the queries were not going through a proxy. The only DHCP address I have is the one that's given to me by Verizon FIOS. Every machine on the LAN has a static IP address.
0  |
 |
 |
This post is quite old and has been locked from receiving new replies. Please create a new posting instead.
| Ads by Google |
