LDAP UDP Port Problem
From: Mike Morgan (mmorgan_at_ci.gulfport.ms.us)
Date: 02/02/04
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Date: Mon, 2 Feb 2004 16:47:11 -0600
I'm having a problem logging in to our new active directory from any subnet
other than the one the DC is on. The DC is on 10.25.1.5. If I put a
workstation on 10.25.1.6 every thing works fine. If I put it on 10.25.4.6,
it takes forever to login. Troubleshooting has revealed that TCP/IP and DNS
are working properly. Netdiag revealed some failed tests, but nothing panned
out in the way of a solution. Then I did some portqry's on the LDAP port on
my DC with both 10.25.1.6 and 10.25.4.6. The results are listed below. In
short, with a 10.25.4.6 IP on the workstation, the DC does not respond to
UDP requests. Does anybody know how to either fix or work around this? Thank
you.
portqry -name downtown01 -p tcp -e 389
Querying target system called:
downtown01
Attempting to resolve name to IP address...
Name resolved to 10.25.1.5
querying...
TCP port 389 (ldap service): LISTENING
Using ephemeral source port
Sending LDAP query to TCP port 389...
LDAP query response:
currentdate: 02/02/2004 21:24:34 (unadjusted GMT)
subschemaSubentry:
CN=Aggregate,CN=Schema,CN=Configuration,DC=ci,DC=gulfport,DC=ms,DC=us
dsServiceName: CN=NTDS
Settings,CN=DOWNTOWN01,CN=Servers,CN=Downtown,CN=Sites,CN=Configuration,DC=c
i,DC=gulfport,DC=ms,DC=us
namingContexts: CN=Schema,CN=Configuration,DC=ci,DC=gulfport,DC=ms,DC=us
defaultNamingContext: DC=ci,DC=gulfport,DC=ms,DC=us
schemaNamingContext:
CN=Schema,CN=Configuration,DC=ci,DC=gulfport,DC=ms,DC=us
configurationNamingContext: CN=Configuration,DC=ci,DC=gulfport,DC=ms,DC=us
rootDomainNamingContext: DC=ci,DC=gulfport,DC=ms,DC=us
supportedControl: 1.2.840.113556.1.4.319
supportedLDAPVersion: 3
supportedLDAPPolicies: MaxPoolThreads
highestCommittedUSN: 11760
supportedSASLMechanisms: GSSAPI
dnsHostName: downtown01.ci.gulfport.ms.us
ldapServiceName: ci.gulfport.ms.us:downtown01$@CI.GULFPORT.MS.US
serverName:
CN=DOWNTOWN01,CN=Servers,CN=Downtown,CN=Sites,CN=Configuration,DC=ci,DC=gulf
port,DC=ms,DC=us
supportedCapabilities: 1.2.840.113556.1.4.800
isSynchronized: TRUE
isGlobalCatalogReady: TRUE
======== End of LDAP query response ========
portqry -name downtown01 -p udp -e 389
Querying target system called:
downtown01
Attempting to resolve name to IP address...
Name resolved to 10.25.1.5
querying...
UDP port 389 (unknown service): LISTENING or FILTERED
Using ephemeral source port
Sending LDAP query to UDP port 389...
LDAP query response:
currentdate: 02/02/2004 21:24:47 (unadjusted GMT)
subschemaSubentry:
CN=Aggregate,CN=Schema,CN=Configuration,DC=ci,DC=gulfport,DC=ms,DC=us
dsServiceName: CN=NTDS
Settings,CN=DOWNTOWN01,CN=Servers,CN=Downtown,CN=Sites,CN=Configuration,DC=c
i,DC=gulfport,DC=ms,DC=us
namingContexts: CN=Schema,CN=Configuration,DC=ci,DC=gulfport,DC=ms,DC=us
defaultNamingContext: DC=ci,DC=gulfport,DC=ms,DC=us
schemaNamingContext:
CN=Schema,CN=Configuration,DC=ci,DC=gulfport,DC=ms,DC=us
configurationNamingContext: CN=Configuration,DC=ci,DC=gulfport,DC=ms,DC=us
rootDomainNamingContext: DC=ci,DC=gulfport,DC=ms,DC=us
supportedControl: 1.2.840.113556.1.4.319
supportedLDAPVersion: 3
supportedLDAPPolicies: MaxPoolThreads
highestCommittedUSN: 11760
supportedSASLMechanisms: GSSAPI
dnsHostName: downtown01.ci.gulfport.ms.us
ldapServiceName: ci.gulfport.ms.us:downtown01$@CI.GULFPORT.MS.US
serverName:
CN=DOWNTOWN01,CN=Servers,CN=Downtown,CN=Sites,CN=Configuration,DC=ci,DC=gulf
port,DC=ms,DC=us
supportedCapabilities: 1.2.840.113556.1.4.800
isSynchronized: TRUE
isGlobalCatalogReady: TRUE
======== End of LDAP query response ========
UDP port 389 is LISTENING
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
++++++++++++++++++++++++++++
portqry -name downtown01 -p udp -e 389
Querying target system called:
downtown01
Attempting to resolve name to IP address...
Name resolved to 10.25.1.5
querying...
TCP port 389 (ldap service): LISTENING
Using ephemeral source port
Sending LDAP query to TCP port 389...
LDAP query response:
currentdate: 02/02/2004 21:23:56 (unadjusted GMT)
subschemaSubentry:
CN=Aggregate,CN=Schema,CN=Configuration,DC=ci,DC=gulfport,DC=ms,DC=us
dsServiceName: CN=NTDS
Settings,CN=DOWNTOWN01,CN=Servers,CN=Downtown,CN=Sites,CN=Configuration,DC=c
i,DC=gulfport,DC=ms,DC=us
namingContexts: CN=Schema,CN=Configuration,DC=ci,DC=gulfport,DC=ms,DC=us
defaultNamingContext: DC=ci,DC=gulfport,DC=ms,DC=us
schemaNamingContext:
CN=Schema,CN=Configuration,DC=ci,DC=gulfport,DC=ms,DC=us
configurationNamingContext: CN=Configuration,DC=ci,DC=gulfport,DC=ms,DC=us
rootDomainNamingContext: DC=ci,DC=gulfport,DC=ms,DC=us
supportedControl: 1.2.840.113556.1.4.319
supportedLDAPVersion: 3
supportedLDAPPolicies: MaxPoolThreads
highestCommittedUSN: 11756
supportedSASLMechanisms: GSSAPI
dnsHostName: downtown01.ci.gulfport.ms.us
ldapServiceName: ci.gulfport.ms.us:downtown01$@CI.GULFPORT.MS.US
serverName:
CN=DOWNTOWN01,CN=Servers,CN=Downtown,CN=Sites,CN=Configuration,DC=ci,DC=gulf
port,DC=ms,DC=us
supportedCapabilities: 1.2.840.113556.1.4.800
isSynchronized: TRUE
isGlobalCatalogReady: TRUE
======== End of LDAP query response ========
portqry -name downtown01 -p udp -e 389
Querying target system called:
downtown01
Attempting to resolve name to IP address...
Name resolved to 10.25.1.5
querying...
UDP port 389 (unknown service): LISTENING or FILTERED
Using ephemeral source port
Sending LDAP query to UDP port 389...
LDAP query to port 389 failed
Server did not respond to LDAP query
- Next message: Mike Morgan: "Re: LDAP UDP Port Problem"
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- Reply: Mike Morgan: "Re: LDAP UDP Port Problem"
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