[Dnsmasq-discuss] Duplicate IPs assigned to devices with similar MAC (same vendor)

Sat Jan 14 23:36:38 GMT 2017

here is dnsmasq.conf

========================
resolv-file=/etc/resolv-dnsmasq.conf
read-ethers
domain-needed
expand-hosts
log-facility = /var/log/dnsmasq
log-dhcp
listen-address=127.0.0.1
listen-address=10.111.222.6
bind-interfaces
addn-hosts = /etc/hosts_dnsmasq.cobbler
srv-host =_kerberos._udp.abclan.com,vzhost1.abclan.com,88
srv-host =_kerberos._udp.abclan.com,vzhost2.abclan.com,88
srv-host =_kerberos._tcp.abclan.com,vzhost1.abclan.com,88
srv-host =_kerberos._tcp.abclan.com,vzhost2.abclan.com,88
srv-host =_kerberos-master._tcp.abclan.com,vzhost1.abclan.com,88
srv-host =_kerberos-master._tcp.abclan.com,vzhost2.abclan.com,88
srv-host =_kerberos-master._udp.abclan.com,vzhost1.abclan.com,88
srv-host =_kerberos-master._udp.abclan.com,vzhost2.abclan.com,88
srv-host =_kpasswd._tcp.abclan.com,vzhost1.abclan.com,464
srv-host =_kpasswd._tcp.abclan.com,vzhost2.abclan.com,464
srv-host =_kpasswd._udp.abclan.com,vzhost1.abclan.com,464
srv-host =_kpasswd._udp.abclan.com,vzhost2.abclan.com,464
srv-host =_ldap._tcp.abclan.com,vzhost1.abclan.com,389
srv-host =_ldap._tcp.abclan.com,vzhost2.abclan.com,389
srv-host =_ntp._udp.abclan.com,vzhost1.abclan.com,123
srv-host =_ntp._udp.abclan.com,vzhost2.abclan.com,123
txt-record=_kerberos.abclan.com,"ABCLAN.COM"
dhcp-host=10.111.222.128,f4:4d:30:60:90:8d,nuc_labtest_1.abclan.com,72h
ptr-record=128.222.111.10.in-addr.arpa,"nuc_labtest_1.abclan.com"
address=/nuc_labtest_1.abclan.com/10.111.222.128
dhcp-host=10.111.222.127,9C:5D:12:72:67:00,aerohive_ping-ping.abclan.com,72h
ptr-record=127.222.111.10.in-addr.arpa,"aerohive_ping-pong.abclan.com"
address=/aerohive_ping-pong.abclan.com/10.111.222.127
dhcp-host=10.111.222.126,9C:5D:12:6F:BC:00,aerohive_lab.abclan.com,72h
ptr-record=126.222.111.10.in-addr.arpa,"aerohive_lab.abclan.com"
address=/aerohive_lab.abclan.com/10.111.222.126
dhcp-host=10.111.222.125,00:0E:E3:03:B7:22,lif-200.abclan.com,72h
ptr-record=125.222.111.10.in-addr.arpa,"lif-200.abclan.com"
address=/lif-200.abclan.com/10.111.222.125
dhcp-host=10.111.216.108,5C:C5:D4:82:90:15,kyocera.abclan.com,72h
ptr-record=108.216.111.10.in-addr.arpa,"keyocera.abclan.com"
address=/kyocera.abclan.com/10.111.216.108
dhcp-host=10.111.222.123,00:06:67:25:AD:FE,trippliteups01.abclan.com,72h
ptr-record=123.222.111.10.in-addr.arpa,"trippliteups01.abclan.com"
address=/trippliteups01.abclan.com/10.111.222.123
dhcp-host=10.111.222.121,d0:73:7f:93:88:33,lab-att-01.abclan.com,72h
ptr-record=121.222.111.10.in-addr.arpa,"lab-att-01.abclan.com"
address=/lab-att-01.abclan.com/10.111.222.121
dhcp-host=10.111.222.122,d0:73:7f:93:88:0d,lab-att-02.abclan.com,72h
ptr-record=122.222.111.10.in-addr.arpa,"lab-att-02.abclan.com"
address=/lab-att-02.abclan.com/10.111.222.122
dhcp-host=10.111.222.21,00:1B:21:AD:C8:CC,metrics.abclan.com,72h
ptr-record=21.222.111.10.in-addr.arpa,"metrics.abclan.com"
address=/metrics.abclan.com/10.111.222.21
dhcp-host=10.111.222.120,01:A0:88:B4:38:E2:40,ricky-lab.abclan.com,72h
ptr-record=120.222.111.10.in-addr.arpa,"ricky-lab.abclan.com"
address=/ricky-lab.abclan.com/10.111.222.120
dhcp-host=10.111.222.119,18:CF:5E:B8:F6:0F,security-laptop.abclan.com,72h
ptr-record=119.222.111.10.in-addr.arpa,"security-laptop.abclan.com"
address=/security-laptop.abclan.com/10.111.222.119
dhcp-host=10.111.222.53,00:02:C9:52:12:26,retrospect-srv.abclan.com,24h
ptr-record=53.222.111.10.in-addr.arpa,"retrospect-srv.abclan.com"
address=/retrospect-srv.abclan.com/10.111.222.53
dhcp-host=10.111.222.14,08:60:6E:19:87:18,abc-app02.abclan.com,24h
ptr-record=14.222.111.10.in-addr.arpa,"abc-app02.abclan.com"
address=/abc-app02.abclan.com/10.111.222.14
dhcp-host=10.111.222.136,00:18:51:3E:CA:0D,vm107.abclan.com,24h
dhcp-host=10.111.222.137,00:18:51:9C:F2:F5,vm109.abclan.com,24h
dhcp-host=10.111.222.138,00:18:51:72:59:AC,vm110.abclan.com,24h
dhcp-host=10.111.222.25,00:18:51:4E:F0:25,vm201.abclan.com,24h
dhcp-host=10.111.222.26,00:18:51:C8:7D:BC,vm202.abclan.com,24h
dhcp-host=10.111.222.28,00:18:51:0E:97:27,vm203.abclan.com,24h
dhcp-host=10.111.222.29,00:18:51:F0:2F:DA,vm204.abclan.com,24h
dhcp-host=10.111.222.24,00:18:51:FA:8B:95,vm205.abclan.com,24h
dhcp-host=10.111.222.36,00:26:9E:CD:40:95,bmc-vzhost1.abclan.com,24h
dhcp-host=10.111.222.37,00:26:9E:CD:41:21,bmc-vzhost2.abclan.com,24h
dhcp-host=10.111.222.118,D0-73-7F-8C-3C-2C,Relay-Macro-Atten1.abclan.com,24h
ptr-record=118.222.111.10.in-addr.arpa,"Relay-Macro-Atten1.abclan.com"
address=/Relay-Macro-Atten1.abclan.com/10.111.222.118
dhcp-host=10.111.222.113,00:0D:AD:01:21:E2,iboot-0.abclan.com,24h
ptr-record=113.222.111.10.in-addr.arpa,"iboot-0.abclan.com"
address=/iboot-0.abclan.com/10.111.222.113
dhcp-host=10.111.222.114,00:0D:AD:01:20:40,iboot-1.abclan.com,24h
ptr-record=114.222.111.10.in-addr.arpa,"iboot-1.abclan.com"
address=/iboot-1.abclan.com/10.111.222.114
dhcp-host=10.111.222.115,00:0D:AD:01:28:0A,iboot-2.abclan.com,24h
ptr-record=115.222.111.10.in-addr.arpa,"iboot-2.abclan.com"
address=/iboot-2.abclan.com/10.111.222.115
dhcp-host=10.111.222.116,00:0D:AD:01:25:E2,iboot-3.abclan.com,24h
ptr-record=116.222.111.10.in-addr.arpa,"iboot-3.abclan.com"
address=/iboot-3.abclan.com/10.111.222.116
dhcp-host=10.111.222.117,00:0d:ad:01:28:93,iboot-4.abclan.com,24h
ptr-record=117.222.111.10.in-addr.arpa,"iboot-4.abclan.com"
address=/iboot-4.abclan.com/10.111.222.117
dhcp-host=10.111.222.111,00:E0:4B:40:90:94,exg-0.abclan.com,24h
dhcp-host=10.111.222.112,00:20:0C:6D:F9:8B,pxa-1.abclan.com,24h
dhcp-host=10.111.222.98,00:02:c9:4f:55:a8,build01.abclan.com,24h
ptr-record=98.222.111.10.in-addr.arpa,"build01.abclan.com"
address=/build01.abclan.com/10.111.222.98
dhcp-host=10.111.222.95,00:04:f2:49:79:27,polycom1.abclan.com,24h
ptr-record=95.222.111.10.in-addr.arpa,"polycom1.abclan.com"
address=/polycom1.abclan.com/10.111.222.95
dhcp-host=10.111.222.96,00:04:f2:4f:b5:ca,polycom2.abclan.com,24h
ptr-record=96.222.111.10.in-addr.arpa,"polycom2.abclan.com"
address=/polycom2.abclan.com/10.111.222.96
dhcp-host=10.111.222.97,00:04:f2:4e:ec:d5,polycom3.abclan.com,24h
ptr-record=97.222.111.10.in-addr.arpa,"polycom3.abclan.com"
address=/polycom3.abclan.com/10.111.222.97
dhcp-host=10.111.222.43,02:64:88:A5:02:BB,zc702-kal.abclan.com,24h
ptr-record=43.222.111.10.in-addr.arpa,"zc702-kal.abclan.com"
address=/zc702-kal.abclan.com/10.111.222.43
dhcp-host=10.111.222.45,C4:34:6B:9A:0C:C0,abc-sw04.abclan.com,24h
ptr-record=45.222.111.10.in-addr.arpa,"abc-sw04.abclan.com"
address=/abc-sw04.abclan.com/10.111.222.45
dhcp-host=10.111.222.46,00:18:51:88:85:19,git-lab.abclan.com,24h
ptr-record=46.222.111.10.in-addr.arpa,"git-lab.abclan.com"
address=/git-lab.abclan.com/10.111.222.46
dhcp-host=10.111.222.47,00:21:9B:A3:55:84,abc-app03.abclan.com,24h
ptr-record=47.222.111.10.in-addr.arpa,"abc-app03.abclan.com"
address=/abc-app03.abclan.com/10.111.222.47
dhcp-host=10.111.222.102,D0:17:C2:D1:BF:85,abc2.abclan.com,24h
ptr-record=102.222.111.10.in-addr.arpa,"abc2.abclan.com"
address=/abc2.abclan.com/10.111.222.102
dhcp-host=10.111.222.101,F8:32:E4:BD:AD:B5,abc1.abclan.com,24h
ptr-record=101.222.111.10.in-addr.arpa,"abc1.abclan.com"
address=/abc1.abclan.com/10.111.222.101
dhcp-host=10.111.222.13,00:0C:29:2F:A9:2C,abc-app01.abclan.com,24h
ptr-record=13.222.111.10.in-addr.arpa,"abc-app01.abclan.com"
address=/abc-app01.abclan.com/10.111.222.13
dhcp-host=10.111.222.5,00:0C:29:F0:33:47,abc-dc01.abclan.com,24h
ptr-record=5.222.111.10.in-addr.arpa,"abc-dc01.abclan.com"
address=/abc-dc01.abclan.com/10.111.222.5
dhcp-host=10.111.222.50,00:0C:29:41:4A:26,rhel.abclan.com,24h
ptr-record=50.222.111.10.in-addr.arpa,"rhel.abclan.com"
address=/rhel.abclan.com/10.111.222.50
dhcp-host=10.111.222.17,00:0C:29:16:81:F0,build-server.abclan.com,24h
ptr-record=17.222.111.10.in-addr.arpa,"build-server.abclan.com"
address=/build-server.abclan.com/10.111.222.17
dhcp-host=10.111.222.100,D4:AE:52:93:EB:D7,abc-server.abclan.com,24h
ptr-record=100.222.111.10.in-addr.arpa,"abc-server.abclan.com"
address=/abc-server.abclan.com/10.111.222.100
dhcp-host=10.111.222.15,00:25:90:8B:9C:CF,abc-storage.abclan.com,24h
ptr-record=15.222.111.10.in-addr.arpa,"abc-storage.abclan.com"
address=/abc-storage.abclan.com/10.111.222.15
dhcp-host=10.111.222.99,00:1A:A0:2D:E1:6F,abc-monitor.abclan.com,24h
ptr-record=99.222.111.10.in-addr.arpa,"abc-monitor.abclan.com"
address=/abc-monitor.abclan.com/10.111.222.99
dhcp-host=10.111.222.90,28:d2:44:18:31:77,vsergeev-arch.abclan.com,24h
ptr-record=90.222.111.10.in-addr.arpa,"vsergeev-arch.abclan.com"
address=/vsergeev-arch.abclan.com/10.111.222.90
dhcp-host=10.111.222.1,00:06:F6:FF:A0:90,abc-fw01.abclan.com,24h
ptr-record=1.222.111.10.in-addr.arpa,"abc-fw01.abclan.com"
address=/abc-fw01.abclan.com/10.111.222.1
dhcp-host=10.111.222.2,38:EA:A7:2C:12:80,abc-sw01.abclan.com,72h
ptr-record=2.222.111.10.in-addr.arpa,"abc-sw01.abclan.com"
address=/abc-sw01.abclan.com/10.111.222.2
dhcp-host=10.111.222.3,C8:CB:B8:8D:26:80,abc-sw02.abclan.com,72h
ptr-record=3.222.111.10.in-addr.arpa,"abc-sw02.abclan.com"
address=/abc-sw02.abclan.com/10.111.222.3
dhcp-host=10.111.222.20,9C:5D:12:18:DB:00,aerohive-ap.abclan.com,72h
ptr-record=20.222.111.10.in-addr.arpa,"aerohive-ap.abclan.com"
address=/aerohive-ap.abclan.com/10.111.222.20
dhcp-host=10.111.222.30,00:1B:A9:A5:5B:2E,bro-mfc7860.abclan.com,72h
ptr-record=30.222.111.10.in-addr.arpa,"printer-brother.abclan.com"
address=/printer-brother.abclan.com/10.111.222.30
dhcp-host=10.111.222.31,00:1B:A9:5E:17:A5,bro-mfcj6910.abclan.com,72h
ptr-record=31.222.111.10.in-addr.arpa,"printer-brotherw.abclan.com"
address=/printer-brotherw.abclan.com/10.111.222.31
dhcp-host=10.111.222.32,00:21:B7:F8:5D:6B,printer-lexmark.abclan.com,72h
ptr-record=32.222.111.10.in-addr.arpa,"printer-lexmark.abclan.com"
address=/printer-lexmark.abclan.com/10.111.222.32
dhcp-host=10.111.222.106,28:92:4A:AE:5D:AC,hpdesignjet.abclan.com,24h
dhcp-host=10.111.222.124,30:05:5C:4A:6B:D5,bro-dcp7065a.abclan.com,24h
dhcp-host=10.111.222.217,30:05:5c:4a:6B:DD,bro-dpc7065b.abclan.com,24h
dhcp-host=10.111.218.242,00:0E:E3:03:B7:22,lif200.abclan.com,24h
ptr-record=10.111.218.242.in-addr.arpa,"lif200.abclan.com"
address=/lif200.abclan.com/10.111.218.242
cname=bro-mfc7860.abclan.com,printer-brother.abclan.com
cname=bro-mfcj6910.abclan.com,printer-brotherw.abclan.com
cname=vpn.abclan.com,abc-app03.abclan.com
cname=gerrit.abclan.com,abc-server.abclan.com
cname=confluence.abclan.com,vm205.abclan.com
cname=gitlab.abclan.com,vm109.abclan.com
cname=jira.abclan.com,vm202.abclan.com
cname=zabbix.abclan.com,vm107.abclan.com
cname=software.abclan.com,abc-server.abclan.com
cname=wiki.abclan.com,abc-server.abclan.com
cname=wiki.abc.lan,vm205.abclan.com
cname=abc-server.abc.lan,abc-server.abclan.com
cname=packages.abclan.com,build01.abclan.com
cname=jenkins.abclan.com,build01.abclan.com
cname=boot.abclan.com,build01.abclan.com
cname=review.abclan.com,build01.abclan.com
cname=smb.abclan.com,abc-storage.abclan.com
dhcp-range=10.111.216.10,10.111.219.250,255.255.248.0,48h
dhcp-option=3,10.111.222.1
dhcp-option=6,10.111.222.6
dhcp-option=42,10.111.222.18,10.111.222.22
dhcp-lease-max=950
dhcp-authoritative
dhcp-option=156,"ftpservers=10.11.202.10,configServers=10.11.202.10,country=1,language=1,layer2tagging=1,vlanid=202"

On Sat, Jan 14, 2017 at 4:21 PM, Jim Alles <kb3tbx at gmail.com> wrote:

> May we have dnsmasq.conf?
>
>
> On Jan 14, 2017 11:56 AM, "Oleg Brodkin" <oleg at kumunetworks.com> wrote:
>
> # dnsmasq --version
> Dnsmasq version 2.76  Copyright (c) 2000-2016 Simon Kelley
> # Lease time 48 hours
>
> DNSMASQ server has been in our office for last 4-5 years, and mostly no
> issues with assigning IPs. Except there are two recent devices in our lab
> from the same vendor, and the server dishes them out duplicate IPs. Any
> ideas on what is going on and how to fix it? Thank you
>
>
>
>
> _______________________________________________
> Dnsmasq-discuss mailing list
> Dnsmasq-discuss at lists.thekelleys.org.uk
> http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
>
>
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