Hi ...
I am testing a HN7740 -VSAT-based endpoint from Hughes Network Systems- to
register with Gnu Gatekeeper. Use manual GK discovery but failed. When i
changed to Cisco 2800 running Gatekeeper IOS, the discovery process OK,
followed by registration (OK too).
Below is a UDP and RAS packet decoding of the GRQ message from HN7740 and
GCF message from GNU.
from HN endpoint:
UDP: Src Port: cap (1026), Dst Port: h323gatestat (1719)
GRQ:
H.225.0 RAS
RasMessage: gatekeeperRequest (0)
gatekeeperRequest
requestSeqNum: 11795
protocolIdentifier: 0.0.8.2250.0.4 (Version 4)
rasAddress: ipAddress (0)
ipAddress
ip: 10.42.191.10 (10.42.191.10)
port: 1719
endpointType
vendor
vendor
t35CountryCode: United States (181)
t35Extension: 0
manufacturerCode: 21324
H.221 Manufacturer: Microsoft (0xb500534c)
productId: HNSDIRECWAYVAP\256
versionId: 3.0
terminal
..0. .... mc: False
...0 .... undefinedNode: False
[The response to this request is in frame 2]
>From GNU GK:
UDP: Src Port: h323gatestat (1719), Dst Port: cap (1026)
GCF:
H.225.0 RAS
RasMessage: gatekeeperConfirm (1)
gatekeeperConfirm
requestSeqNum: 11795
protocolIdentifier: 0.0.8.2250.0.4 (Version 4)
gatekeeperIdentifier: jkt-ogk-02
rasAddress: ipAddress (0)
ipAddress
ip: 10.33.9.12 (10.33.9.12)
port: 1719
[This is a response to a request in frame 1]
I suspect that the GNU does not decode / understand the ras ip address
contained in the GRQ packet that said the UDP port number the endpoint used
was 1719. We can see this from the destination port of GCF message sent by
GNU, which is 1026.
Using Cisco GK, the GCF message was correctly sent to UDP port 1719, which
is used by the endpoint.
Can somebody help me how to solve the problem above?
Thanks,
yanto
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