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DHCP Client problem

 
 
PecK
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Posts: n/a
 
      04-28-2005
Hello all,

I think Cisco IOS has got a problem with DHCP renewal : my ISP renew my
public adress every 24 hours and my Cisco 1721 doesn't care about this
renewal.

I tested several IOS without success and it works with others routers
(Zyxel...).

In fact, my Cisco 1721 doesn't send broadcast when it needs to renew its
adress, it still uses its unicast adress to renew dhcp lease.

Here's my log and conf :
24331: 023865: Apr 28 00:35:34.777 UTCS: Temp IP addr: 82.65.249.243 for
peer on Interface: Ethernet0
24332: 023866: Apr 28 00:35:34.777 UTCS: Temp sub net mask: 255.255.255.0
24333: 023867: Apr 28 00:35:34.777 UTCS: DHCP Lease server:
82.65.249.254, state: 7 Releasing
24334: 023868: Apr 28 00:35:34.781 UTCS: DHCP transaction id: 1C54
24335: 023869: Apr 28 00:35:34.781 UTCS: Lease: 600 secs, Renewal: 60
secs, Rebind: 600 secs
24336: 023870: Apr 28 00:35:34.781 UTCS: Temp default-gateway addr:
82.65.249.254
24337: 023871: Apr 28 00:35:34.781 UTCS: Next timer fires after: 00:00:00
24338: 023872: Apr 28 00:35:34.781 UTCS: Retry count: 1 Client-ID:
0004.dd0c.ea06
24339: 023873: Apr 28 00:35:34.781 UTCS: Hostname: Tower
24340: 023874: Apr 28 00:35:34.781 UTCS: DHCP: SRelease placed Server ID
option: 82.65.249.254
24341: 023875: Apr 28 00:35:34.781 UTCS: DHCP: SRelease: 259 bytes
24342: 023876: Apr 28 00:35:34.845 UTCS: DHCP: SRelease attempt # 2 for
entry:
24343: 023877: Apr 28 00:35:34.845 UTCS: Temp IP addr: 82.65.249.243 for
peer on Interface: Ethernet0
24344: 023878: Apr 28 00:35:34.845 UTCS: Temp sub net mask: 255.255.255.0
24345: 023879: Apr 28 00:35:34.845 UTCS: DHCP Lease server:
82.65.249.254, state: 7 Releasing
24346: 023880: Apr 28 00:35:34.845 UTCS: DHCP transaction id: 1C54
24347: 023881: Apr 28 00:35:34.845 UTCS: Lease: 600 secs, Renewal: 60
secs, Rebind: 600 secs
24348: 023882: Apr 28 00:35:34.845 UTCS: Temp default-gateway addr:
82.65.249.254
24349: 023883: Apr 28 00:35:34.845 UTCS: Next timer fires after: 00:00:00
24350: 023884: Apr 28 00:35:34.845 UTCS: Retry count: 2 Client-ID:
0004.dd0c.ea06
24351: 023885: Apr 28 00:35:34.845 UTCS: Hostname: Tower
24352: 023886: Apr 28 00:35:34.845 UTCS: DHCP: SRelease placed Server ID
option: 82.65.249.254
24353: 023887: Apr 28 00:35:34.849 UTCS: DHCP: SRelease: 259 bytes
24354: 023888: Apr 28 00:35:34.849 UTCS: DHCP: Releasing ipl options:
24355: 023889: Apr 28 00:35:34.849 UTCS: Clearing default gateway and
route to 82.65.249.254
24356: 023890: Apr 28 00:35:34.853 UTCS: Clearing DNS address
212.27.32.177
24357: 023891: Apr 28 00:35:34.857 UTCS: Clearing DNS address
213.228.0.212
24358: 023892: Apr 28 00:35:35.777 UTCS: DHCP: SRelease attempt # 3 for
entry:
24359: 023893: Apr 28 00:35:35.777 UTCS: Temp IP addr: 82.65.249.243 for
peer on Interface: Ethernet0
24360: 023894: Apr 28 00:35:35.777 UTCS: Temp sub net mask: 255.255.255.0
24361: 023895: Apr 28 00:35:35.777 UTCS: DHCP Lease server:
82.65.249.254, state: 7 Releasing
24362: 023896: Apr 28 00:35:35.777 UTCS: DHCP transaction id: 1C54
24363: 023897: Apr 28 00:35:35.777 UTCS: Lease: 600 secs, Renewal: 60
secs, Rebind: 600 secs
24364: 023898: Apr 28 00:35:35.777 UTCS: Next timer fires after: 00:00:01
24365: 023899: Apr 28 00:35:35.777 UTCS: Retry count: 3 Client-ID:
0004.dd0c.ea06
24366: 023900: Apr 28 00:35:35.777 UTCS: Hostname: Tower
24367: 023901: Apr 28 00:35:35.777 UTCS: DHCP: SRelease placed Server ID
option: 82.65.249.254
24368: 023902: Apr 28 00:35:35.781 UTCS: DHCP: SRelease: 259 bytes

version 12.2
no service pad
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
service password-encryption
service sequence-numbers
!
hostname Tower
!
logging buffered 4096 debugging
no logging console
!
clock timezone UTC 1
clock summer-time UTCS recurring
aaa new-model
!
!
aaa authentication login local_auth local
aaa session-id common
ip subnet-zero
no ip source-route
no ip gratuitous-arps
!
!
!
no ip bootp server
ip inspect audit-trail
ip inspect udp idle-time 1800
ip inspect dns-timeout 7
ip inspect tcp idle-time 14400
ip inspect name autosec_inspect cuseeme timeout 3600
ip inspect name autosec_inspect ftp timeout 3600
ip inspect name autosec_inspect http timeout 3600
ip inspect name autosec_inspect rcmd timeout 3600
ip inspect name autosec_inspect realaudio timeout 3600
ip inspect name autosec_inspect smtp timeout 3600
ip inspect name autosec_inspect udp timeout 15
ip inspect name autosec_inspect tcp timeout 3600
ip audit notify log
ip audit po max-events 100
ip cef
ip ssh time-out 60
ip ssh authentication-retries 2
ip dhcp-client network-discovery informs 2 discovers 2 period 10
!
!
!
interface Ethernet0
description Connected to Internet
ip address dhcp client-id Ethernet0
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat outside
ip inspect autosec_inspect out
half-duplex
!
interface FastEthernet0
description Connected to LAN
ip address 192.168.1.206 255.255.255.248
ip access-group 1 in
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat inside
speed auto
!
ip nat inside source list 1 interface Ethernet0 overload
ip nat inside source static tcp 192.168.1.205 49996 interface Ethernet0
49996
ip classless
no ip http server
!
!
!
logging trap debugging
logging facility syslog
logging 192.168.1.205
access-list 1 permit 192.168.1.200 0.0.0.7
no cdp run


I turned of f my ACL on the interface facing the Internet...

Has anyone's got the same problem or any idea ?

Thanks


 
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