[c-nsp] Jabber on WIFI with L2TP VPN

[Soon Lee]

hi experts

have you guys ever got success to register SIP message to CM with Galaxy S +
Jabber + WIFI + L2TP VPN ?

i got success with Galaxy S + Jabber + 3G + VPN.(the L3 header IP and SIP IP
is the same)

but, in WIFI + L2TP VPN,  Jabber send SIP REG with private IP (the L3 header
IP which is allocated is not the same in SIP IP)
(and there is no option not to send private IP with SIP REG.)

so, i tried to do SIP Inspect on an ASA, but ASA can change L3 IP ( if L3 IP
is the same SIP IP then ALG works. but, if it is not the same it doesn't
work.)

1. is there any Firewall can change both IP addresses when L3 IP and SIP IP
are not the same?
2. is there any option not to send private IP address when SIP REG?
3. please give me any solution i can make a call with Galaxy S + Jabber +
WIFI + VPN.

thanks.

*Soongoon Lee**  /** CCIE #17724*