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B-2
Typical Cisco Skinny (SCCP) Phone Bootup
>DHCP DISCOVER
00c017a00079
>DHCP OFFER
129.196.197.016
>DHCP REQUEST
003094c4426f
>DHCP ACK
129.196.197.016
// the phone broadcasts an IP address request
// the MAC address of the phone
// the DHCP server offers an address
// the offered IP address
// the phone requests the offered address
//the server acknowledges the request
>DNS req:003094c4426f
CiscoCM1.danahertm.com
<DNS response
129.196.197.244
>TFTP file request
OS79XX.TXT
>TFTP file request
SEP003094C4426F.cnf.xml
// the phone requests the Call Manager IP
/ / the DNS server responds with the Call Manager’s address
// the phone uses TFTP to get operating files
>ALARM TO CM
25: Name=SEP003094C4426F
>REGISTER WITH CM
ip:129.196.197.016
name:SEP003094C4426F
// the phone signals the Call Manager
// and registers with the Call Manager