Subnet B connecting the asa outside interface to the other private network has a 30 bit mask so only 2 usable ip addresses. 172.31.113.6 on the outside of the firewall and 172.31.113.5 on the connecting device.
What I need to do is translate outbound traffic from subnet A so it is routable across subnet B to subnet C and visa versa.
I think any easy solution would be to increase subnet B so I have an additional routable ip address. I could then use this address as you suggest above.
What I want to achieve is any inbound traffic from subnet C is translated to the sip gateway address 10.100.70.1 and any outbound traffic which will come from the sip gateway be translated so its routable back to subnet C
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...