I have following scenario:
[VoIP phone]--------[ASA 5550]----------[SIP Server]
- VoIP phone: 10.0.0.10
- SIP server: Public Address
In above scenario do i need to specify or open RTP port range
10000-20000on ASA or does ASA will use
pinholemethod when VoIP phone initiate connection to SIP server?
How does firewall handle UDP port stat? because in TCP we know its stateful but how does firewall understand its UDP traffic initiated from inside to outside to keep that port open bi-directional traffic?
If i enable
SIP Inspectiondoes that automatically open RTP media port after
what if i do not enable
SIP Inspectionin that case do i need to open full RTP port range to allow outside to inside traffic?