Here is a properly connected client
2013-07-16 22:37:27 EDT Incoming call... Address given to client = 10.1.1.231
Tue Jul 16 22:37:27 2013 : Directory Services Authentication plugin initialized
Tue Jul 16 22:37:27 2013 : Directory Services Authorization plugin initialized
Tue Jul 16 22:37:27 2013 : L2TP incoming call in progress from '10.1.1.109'...
Tue Jul 16 22:37:27 2013 : L2TP received SCCRQ
Tue Jul 16 22:37:27 2013 : L2TP sent SCCRP
Tue Jul 16 22:37:27 2013 : L2TP received SCCCN
Tue Jul 16 22:37:27 2013 : L2TP received ICRQ
Tue Jul 16 22:37:27 2013 : L2TP sent ICRP
Tue Jul 16 22:37:27 2013 : L2TP received ICCN
Tue Jul 16 22:37:27 2013 : L2TP connection established.
Tue Jul 16 22:37:27 2013 : using link 0
Tue Jul 16 22:37:27 2013 : Using interface ppp0
Tue Jul 16 22:37:27 2013 : Connect: ppp0 <--> socket[34:18]
Tue Jul 16 22:37:27 2013 : sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth chap MS-v2> <magic 0x51bcd2b8> <pcomp> <accomp>]
Tue Jul 16 22:37:27 2013 : rcvd [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x2a2e6968> <pcomp> <accomp>]
Tue Jul 16 22:37:27 2013 : lcp_reqci: returning CONFACK.
Tue Jul 16 22:37:27 2013 : sent [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x2a2e6968> <pcomp> <accomp>]
Tue Jul 16 22:37:27 2013 : rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <auth chap MS-v2> <magic 0x51bcd2b8> <pcomp> <accomp>]
Tue Jul 16 22:37:27 2013 : sent [LCP EchoReq id=0x0 magic=0x51bcd2b8]
Tue Jul 16 22:37:27 2013 : sent [CHAP Challenge id=0x99 <25530231620a2a32144123670735585d>, name = "server1.domain.com"]
Tue Jul 16 22:37:27 2013 : rcvd [LCP EchoReq id=0x0 magic=0x2a2e6968]
Tue Jul 16 22:37:27 2013 : sent [LCP EchoRep id=0x0 magic=0x51bcd2b8]
Tue Jul 16 22:37:27 2013 : rcvd [LCP EchoRep id=0x0 magic=0x2a2e6968]
Tue Jul 16 22:37:27 2013 : rcvd [CHAP Response id=0x99 <e05bcc591f50471f1db5dc92e30eda800000000000000000799cfb93fa3a0b70d15a018b1b1db9 9877e05463f540e54400>, name = "localusername"]
Tue Jul 16 22:37:27 2013 : sent [CHAP Success id=0x99 "S=D079042B80380C3806A1EAE231CAE53074ED1F88 M=Access granted"]
Tue Jul 16 22:37:27 2013 : CHAP peer authentication succeeded for localusername
Tue Jul 16 22:37:27 2013 : DSAccessControl plugin: User 'localusername' authorized for access
Tue Jul 16 22:37:27 2013 : sent [IPCP ConfReq id=0x1 <addr 10.1.1.3>]
Tue Jul 16 22:37:27 2013 : sent [ACSCP ConfReq id=0x1]
Tue Jul 16 22:37:27 2013 : rcvd [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
Tue Jul 16 22:37:27 2013 : ipcp: returning Configure-NAK
Tue Jul 16 22:37:27 2013 : sent [IPCP ConfNak id=0x1 <addr 10.1.1.231> <ms-dns1 10.1.1.2> <ms-dns3 10.1.1.2>]
Tue Jul 16 22:37:27 2013 : rcvd [IPV6CP ConfReq id=0x1 <addr fe80::426c:8fff:fe0c:4d37>]
Tue Jul 16 22:37:27 2013 : Unsupported protocol 0x8057 received
Tue Jul 16 22:37:27 2013 : sent [LCP ProtRej id=0x2 80 57 01 01 00 0e 01 0a 42 6c 8f ff fe 0c 4d 37]
Tue Jul 16 22:37:27 2013 : rcvd [ACSCP ConfReq id=0x1 <route vers 16777216> <domain vers 16777216>]
Tue Jul 16 22:37:27 2013 : sent [ACSCP ConfAck id=0x1 <route vers 16777216> <domain vers 16777216>]
Tue Jul 16 22:37:27 2013 : rcvd [IPCP ConfAck id=0x1 <addr 10.1.1.3>]
Tue Jul 16 22:37:27 2013 : rcvd [ACSCP ConfAck id=0x1]
Tue Jul 16 22:37:27 2013 : sent [ACSP data <payload len 15, packet seq 0, CI_DOMAINS, flags: START END REQUIRE-ACK>
<domain: name mtg.local>]
Tue Jul 16 22:37:27 2013 : sent [ACSP data <payload len 12, packet seq 0, CI_ROUTES, flags: START END REQUIRE-ACK>
<route: address 10.1.1.1, mask 255.255.255.0, flags: PUBLIC>]
Tue Jul 16 22:37:27 2013 : rcvd [IPCP ConfReq id=0x2 <addr 10.1.1.231> <ms-dns1 10.1.1.2> <ms-dns3 10.1.1.2>]
Tue Jul 16 22:37:27 2013 : ipcp: returning Configure-ACK
Tue Jul 16 22:37:27 2013 : sent [IPCP ConfAck id=0x2 <addr 10.1.1.231> <ms-dns1 10.1.1.2> <ms-dns3 10.1.1.2>]
Tue Jul 16 22:37:27 2013 : ipcp: up
Tue Jul 16 22:37:27 2013 : found interface en0 for proxy arp
Tue Jul 16 22:37:27 2013 : local IP address 10.1.1.3
Tue Jul 16 22:37:27 2013 : remote IP address 10.1.1.231
Tue Jul 16 22:37:27 2013 : l2tp_wait_input: Address added. previous interface setting (name: en0, address: 10.1.1.3), current interface setting (name: ppp0, family: PPP, address: 10.1.1.3, subnet: 255.255.255.0, destination: 10.1.1.231).
Tue Jul 16 22:37:27 2013 : rcvd [ACSP data <payload len 0, packet seq 0, CI_DOMAINS, flags: ACK>]
Tue Jul 16 22:37:27 2013 : rcvd [ACSP data <payload len 0, packet seq 0, CI_ROUTES, flags: ACK>]