First, a disclosure: This is my first Cisco device ever. Only ever used dumb hubs/switches and computers before.
We need to use an ASA 5505 to route UDP traffic from one (otherwise air-gapped) private network (192.168.3.x, inside) to another (otherwise air-gapped) network (10.10.10.x, outside). Each network currently has < 5 machines connected by a simple unmanaged switch. The 5505 will have its one outside port connected to the outside switch and its one inside port connected to the inside switch. Traffic is only allowed to flow from inside to outside not the reverse, hence UDP.
I've managed to get it to work for ONE machine on the outside, by setting that machine's address as the gateway. However, it is NOT actually a gateway, it is just a Windows desktop, so this will not work for my actual requirements. But I cannot figure out how to have the firewall just route all traffic received from the inside to the outside network. It is probably quite simple, but it escapes me.
Oh, we've not yet been able to get anything to connect via telnet or SSH to the 5505, but we (barely) managed to get the web/java interface to work from a Windows Embedded Standard 7 desktop (one of the inside machines). Apologies in advance if this is an inappropriate question here.
My running-config.cfg values (from a backup made by the GUI) are:
Cryptochecksum: f11dee8e 05035a66 fe2a7a49 813a2eed : Saved : Written by enable_15 at 10:02:20.369 UTC Wed Apr 13 2016 ! ASA Version 8.2(5) ! hostname ciscoasa names ! interface Ethernet0/0 switchport access vlan 2 ! interface Ethernet0/1 ! interface Ethernet0/2 ! interface Ethernet0/3 ! interface Ethernet0/4 ! interface Ethernet0/5 ! interface Ethernet0/6 ! interface Ethernet0/7 ! interface Vlan1 nameif inside security-level 100 ip address 192.168.3.1 255.255.255.0 ! interface Vlan2 nameif outside security-level 0 ip address 10.10.10.100 255.255.255.0 ! ftp mode passive pager lines 24 logging asdm informational mtu inside 1500 mtu outside 1500 icmp unreachable rate-limit 1 burst-size 1 no asdm history enable arp timeout 14400 nat-control global (outside) 1 interface nat (inside) 1 0.0.0.0 0.0.0.0 route outside 0.0.0.0 0.0.0.0 10.10.10.10 1 timeout xlate 3:00:00 timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02 timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00 timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00 timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute timeout tcp-proxy-reassembly 0:01:00 timeout floating-conn 0:00:00 dynamic-access-policy-record DfltAccessPolicy http server enable http 192.168.3.0 255.255.255.0 inside no snmp-server location no snmp-server contact snmp-server enable traps snmp authentication linkup linkdown coldstart crypto ipsec security-association lifetime seconds 28800 crypto ipsec security-association lifetime kilobytes 4608000 telnet timeout 5 ssh timeout 5 console timeout 0 dhcpd auto_config outside ! dhcpd address 192.168.3.5-192.168.3.36 inside ! threat-detection basic-threat threat-detection statistics access-list no threat-detection statistics tcp-intercept webvpn ! class-map inspection_default match default-inspection-traffic ! ! policy-map type inspect dns preset_dns_map parameters message-length maximum client auto message-length maximum 512 policy-map global_policy class inspection_default inspect dns preset_dns_map inspect ftp inspect h323 h225 inspect h323 ras inspect rsh inspect rtsp inspect esmtp inspect sqlnet inspect skinny inspect sunrpc inspect xdmcp inspect sip inspect netbios inspect tftp inspect ip-options ! service-policy global_policy global prompt hostname context no call-home reporting anonymous Cryptochecksum:f11dee8e05035a66fe2a7a49813a2eed : end
I hope that is useful. Thanks for looking at this.