How to Configure bootpd to Perform Dynamic DNS Updates

I have been able to get bootpd configured to function as a basic DHCP server. I would now like to configure it to dynamically update DNS forward and reverse zones when leases are assigned, released, or expired.
Does anyone have an example of a bootpd.plist file to configure bootpd for dynamic DNS updates?

Hi,
I am not sure what you are attempting to configure here.
But what the NAT configuration above does is do a Dynamic PAT for all the servers on the "firewall-dmz" to a single IP address towards the "firewall-outbound"
This Dynamic translation doesnt however enable connections to be initiated from behind the "firewall-outbound" interface. When your hosting a server which needs a NAT towards the users then the NAT type has to be Static NAT or Static PAT.
Static NAT will essentially use up one public IP address for just the single local host/server.
Static PAT will do a Port Forward from the public IP address and public port to the local IP and local port. And this is most commonly used with environments which only public IP address is the one that the ASA holds in its WAN interface.
A typical Static NAT configuration is this
static (inside,outside) 1.1.1.1 10.10.10.10 netmask 255.255.255.255
Where
inside = is the interface behind which the host is
outside = is the interface towards which the host is NATed
1.1.1.1 = is the public NAT IP address for the host
10.10.10.10 = is the local IP address of the host
A typical Static PAT configuration is this
static (inside,outside) tcp interface 80 10.10.10.10 80 netmask 255.255.255.255
Where
tcp = specifies the protocol for which the Static PAT configured
interface = specifies that we will be using the public IP address of the destination interface "outside" as the public IP address for this single Port Forward.
80 = first "80" specifies the public port visible to users behind the destination interface
80 = second "80" specifies the actual local port on which the local host is listening on
Hope this helps
- Jouni

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Here is part of the log from yesterday. Only two bad_addresses happened today. See what I mean by it's intermittant?
Thanks!
Steve
30,01/30/14,07:17:06,DNS Update Request,192.168.211.1,U39RM11-1.ludlow.local,,,0,6,,AAEBv23zaAWZ4WuK1b2+dVq95TA2xTDStNgPobG8nwaXmPQ=,
11,01/30/14,07:17:06,Renew,192.168.211.1,U39RM11-1.ludlow.local,E840F2D1CE03,,4190867016,0,,,
32,01/30/14,07:17:06,DNS Update Successful,192.168.211.1,U39RM11-1.ludlow.local,,,0,6,,AAEBv23zaAWZ4WuK1b2+dVq95TA2xTDStNgPobG8nwaXmPQ=,
30,01/30/14,07:17:18,DNS Update Request,192.168.233.11,U39Rm33-1.ludlow.local,,,0,6,,AAEB2fUQYqMaWdoe1wsX4MPnUoL9Q8UmymYol1QgzAkw/+Q=,
11,01/30/14,07:17:18,Renew,192.168.233.11,U39Rm33-1.ludlow.local,E840F2D188E2,,3840093265,0,,,
32,01/30/14,07:17:18,DNS Update Successful,192.168.233.11,U39Rm33-1.ludlow.local,,,0,6,,AAEB2fUQYqMaWdoe1wsX4MPnUoL9Q8UmymYol1QgzAkw/+Q=,
15,01/30/14,07:17:28,NACK,10.0.0.3,,D8D1CB46ADFB,,0,6,,,
30,01/30/14,07:17:31,DNS Update Request,192.168.100.33,Lukes-iPod.ludlow.local,,,0,6,,AAEBPiTHYcRevrOxpOVKf6R0r8Licugdjc6HTsZ8yEKd6i8=,
10,01/30/14,07:17:31,Assign,192.168.100.33,Lukes-iPod.ludlow.local,D8D1CB46ADFB,,4141094238,0,,,
32,01/30/14,07:17:31,DNS Update Successful,192.168.100.33,Lukes-iPod.ludlow.local,,,0,6,,AAEBPiTHYcRevrOxpOVKf6R0r8Licugdjc6HTsZ8yEKd6i8=,
30,01/30/14,07:17:50,DNS Update Request,192.168.100.34,LESPRIM1-LAP.ludlow.local,,,0,6,,AAEBmOdFa4iAE3mwpFO0XztiEQTcpHNF2F80hCx+P33Duxc=,
10,01/30/14,07:17:50,Assign,192.168.100.34,LESPRIM1-LAP.ludlow.local,705AB6E50F05,,448941972,0,,,
32,01/30/14,07:17:50,DNS Update Successful,192.168.100.34,LESPRIM1-LAP.ludlow.local,,,0,6,,AAEBmOdFa4iAE3mwpFO0XztiEQTcpHNF2F80hCx+P33Duxc=,
30,01/30/14,07:17:50,DNS Update Request,192.168.113.141,LESPRIM1-LAP.ludlow.local,,,0,6,,AAEBy8Imjdb3sW/XWuiJ5U/WrxaJQ3BxJCy0NQedJPGa4X0=,
11,01/30/14,07:17:50,Renew,192.168.113.141,LESPRIM1-LAP.ludlow.local,485D605DE330,,2808232855,0,,,
32,01/30/14,07:17:50,DNS Update Successful,192.168.113.141,LESPRIM1-LAP.ludlow.local,,,0,6,,AAEBy8Imjdb3sW/XWuiJ5U/WrxaJQ3BxJCy0NQedJPGa4X0=,
30,01/30/14,07:18:26,DNS Update Request,192.168.200.21,BAD_ADDRESS,,,0,6,,,
11,01/30/14,07:18:26,Renew,192.168.200.21,,5CF8A169E20C,,2629993613,0,,,
32,01/30/14,07:18:26,DNS Update Successful,192.168.200.21,BAD_ADDRESS,,,0,6,,,
13,01/30/14,07:18:28,Conflict,192.168.200.21,BAD_ADDRESS,,,0,6,,,
15,01/30/14,07:18:29,NACK,10.1.10.36,,245FDFAF76C0,,0,6,,,
30,01/30/14,07:18:30,DNS Update Request,192.168.200.21,BAD_ADDRESS,,,0,6,,,
10,01/30/14,07:18:30,Assign,192.168.200.21,,5CF8A169E20C,,1425556505,0,,,
32,01/30/14,07:18:30,DNS Update Successful,192.168.200.21,BAD_ADDRESS,,,0,6,,,
15,01/30/14,07:18:33,NACK,10.1.10.36,,245FDFAF76C0,,0,6,,,
30,01/30/14,07:18:49,DNS Update Request,192.168.226.2,U39Counseling2.ludlow.local,,,0,6,,AAEBoDb2i8cNiTs5s6mi1U4cKX6O6XrNKoeN0nhi48apyko=,
11,01/30/14,07:18:49,Renew,192.168.226.2,U39Counseling2.ludlow.local,E840F2D1B6AE,,3091400663,0,,,
32,01/30/14,07:18:49,DNS Update Successful,192.168.226.2,U39Counseling2.ludlow.local,,,0,6,,AAEBoDb2i8cNiTs5s6mi1U4cKX6O6XrNKoeN0nhi48apyko=,
30,01/30/14,07:18:58,DNS Update Request,192.168.100.20,android-6bb3d55f112e2c78.ludlow.local,,,0,6,,AAEBZ8X3hdJsXWkCTi64DjXKWgzR8VSvxXmR27vdeEmuXFc=,
10,01/30/14,07:18:58,Assign,192.168.100.20,android-6bb3d55f112e2c78.ludlow.local,10AE60DDC84E,,2713964648,0,,,
32,01/30/14,07:18:58,DNS Update Successful,192.168.100.20,android-6bb3d55f112e2c78.ludlow.local,,,0,6,,AAEBZ8X3hdJsXWkCTi64DjXKWgzR8VSvxXmR27vdeEmuXFc=,
30,01/30/14,07:18:59,DNS Update Request,192.168.200.68,U39CB68,,,0,6,,,
11,01/30/14,07:18:59,Renew,192.168.200.68,,6021C0E66497,,2944142942,0,,,
32,01/30/14,07:18:59,DNS Update Successful,192.168.200.68,U39CB68,,,0,6,,,
13,01/30/14,07:19:01,Conflict,192.168.200.68,BAD_ADDRESS,,,0,6,,,
30,01/30/14,07:19:03,DNS Update Request,192.168.100.10,Noahs-Ipod.ludlow.local,,,0,6,,AAEBcMLcZNAQkNiPzr+WDzQUzKRHAQQ40R5Qs/XW2OBsCfg=,
10,01/30/14,07:19:03,Assign,192.168.100.10,Noahs-Ipod.ludlow.local,848506E9BCF0,,1755798843,0,,,
32,01/30/14,07:19:03,DNS Update Successful,192.168.100.10,Noahs-Ipod.ludlow.local,,,0,6,,AAEBcMLcZNAQkNiPzr+WDzQUzKRHAQQ40R5Qs/XW2OBsCfg=,
30,01/30/14,07:19:03,DNS Update Request,192.168.117.131,Lisas-iPad-2.ludlow.local,,,0,6,,AAEBigaHvI9zgqVhhK4yfw0UxzAcRD0yLfh0mU5G6Lq33JI=,
11,01/30/14,07:19:03,Renew,192.168.117.131,Lisas-iPad-2.ludlow.local,A4D1D20EF3A7,,161525253,0,,,
32,01/30/14,07:19:03,DNS Update Successful,192.168.117.131,Lisas-iPad-2.ludlow.local,,,0,6,,AAEBigaHvI9zgqVhhK4yfw0UxzAcRD0yLfh0mU5G6Lq33JI=,
30,01/30/14,07:19:04,DNS Update Request,192.168.200.68,BAD_ADDRESS,,,0,6,,,
10,01/30/14,07:19:04,Assign,192.168.200.68,,6021C0E66497,,734709404,0,,,
32,01/30/14,07:19:04,DNS Update Successful,192.168.200.68,BAD_ADDRESS,,,0,6,,,
30,01/30/14,07:19:04,DNS Update Request,192.168.100.10,Noahs-Ipod.ludlow.local,,,0,6,,AAEBcMLcZNAQkNiPzr+WDzQUzKRHAQQ40R5Qs/XW2OBsCfg=,
11,01/30/14,07:19:04,Renew,192.168.100.10,Noahs-Ipod.ludlow.local,848506E9BCF0,,1755798843,0,,,
32,01/30/14,07:19:04,DNS Update Successful,192.168.100.10,Noahs-Ipod.ludlow.local,,,0,6,,AAEBcMLcZNAQkNiPzr+WDzQUzKRHAQQ40R5Qs/XW2OBsCfg=,
30,01/30/14,07:19:21,DNS Update Request,192.168.100.115,Melissas-iPad.ludlow.local,,,0,6,,AAEBWa+Y6U066OotJwgYxsd0r4WlWFbRi23r65syxZ1CSX4=,
11,01/30/14,07:19:21,Renew,192.168.100.115,Melissas-iPad.ludlow.local,041552B321A4,,1136634598,0,,,
32,01/30/14,07:19:22,DNS Update Successful,192.168.100.115,Melissas-iPad.ludlow.local,,,0,6,,AAEBWa+Y6U066OotJwgYxsd0r4WlWFbRi23r65syxZ1CSX4=,
30,01/30/14,07:19:23,DNS Update Request,192.168.200.68,BAD_ADDRESS,,,0,6,,,
11,01/30/14,07:19:23,Renew,192.168.200.68,,6021C0E66497,,3892725690,0,,,
32,01/30/14,07:19:23,DNS Update Successful,192.168.200.68,BAD_ADDRESS,,,0,6,,,
13,01/30/14,07:19:26,Conflict,192.168.200.68,BAD_ADDRESS,,,0,6,,,
30,01/30/14,07:19:29,DNS Update Request,192.168.200.68,BAD_ADDRESS,,,0,6,,,
10,01/30/14,07:19:29,Assign,192.168.200.68,,6021C0E66497,,3507239814,0,,,
32,01/30/14,07:19:29,DNS Update Successful,192.168.200.68,BAD_ADDRESS,,,0,6,,,
30,01/30/14,07:19:33,DNS Update Request,192.168.100.10,Noahs-Ipod.ludlow.local,,,0,6,,AAEBcMLcZNAQkNiPzr+WDzQUzKRHAQQ40R5Qs/XW2OBsCfg=,
11,01/30/14,07:19:33,Renew,192.168.100.10,Noahs-Ipod.ludlow.local,848506E9BCF0,,1772576059,0,,,
32,01/30/14,07:19:33,DNS Update Successful,192.168.100.10,Noahs-Ipod.ludlow.local,,,0,6,,AAEBcMLcZNAQkNiPzr+WDzQUzKRHAQQ40R5Qs/XW2OBsCfg=,
30,01/30/14,07:19:36,DNS Update Request,192.168.100.35,iDevices-iPod.ludlow.local,,,0,6,,AAEBFRqIzdXCu9pqShdi5/lq7LLN+pI7v0tCInwVnlPW1zw=,
10,01/30/14,07:19:36,Assign,192.168.100.35,iDevices-iPod.ludlow.local,D8D1CB0C4B3C,,1043927758,0,,,
32,01/30/14,07:19:36,DNS Update Successful,192.168.100.35,iDevices-iPod.ludlow.local,,,0,6,,AAEBFRqIzdXCu9pqShdi5/lq7LLN+pI7v0tCInwVnlPW1zw=,
30,01/30/14,07:19:37,DNS Update Request,192.168.100.35,iDevices-iPod.ludlow.local,,,0,6,,AAEBFRqIzdXCu9pqShdi5/lq7LLN+pI7v0tCInwVnlPW1zw=,
11,01/30/14,07:19:37,Renew,192.168.100.35,iDevices-iPod.ludlow.local,D8D1CB0C4B3C,,1043927758,0,,,
32,01/30/14,07:19:37,DNS Update Successful,192.168.100.35,iDevices-iPod.ludlow.local,,,0,6,,AAEBFRqIzdXCu9pqShdi5/lq7LLN+pI7v0tCInwVnlPW1zw=,
30,01/30/14,07:19:38,DNS Update Request,192.168.211.1,U39RM11-1.ludlow.local,,,0,6,,AAEBv23zaAWZ4WuK1b2+dVq95TA2xTDStNgPobG8nwaXmPQ=,
11,01/30/14,07:19:38,Renew,192.168.211.1,U39RM11-1.ludlow.local,E840F2D1CE03,,3851649786,0,,,
32,01/30/14,07:19:38,DNS Update Successful,192.168.211.1,U39RM11-1.ludlow.local,,,0,6,,AAEBv23zaAWZ4WuK1b2+dVq95TA2xTDStNgPobG8nwaXmPQ=,
30,01/30/14,07:20:02,DNS Update Request,192.168.200.21,BAD_ADDRESS,,,0,6,,,
11,01/30/14,07:20:02,Renew,192.168.200.21,,5CF8A169E20C,,2527289584,0,,,
32,01/30/14,07:20:02,DNS Update Successful,192.168.200.21,BAD_ADDRESS,,,0,6,,,
13,01/30/14,07:20:05,Conflict,192.168.200.21,BAD_ADDRESS,,,0,6,,,
30,01/30/14,07:20:07,DNS Update Request,192.168.200.21,BAD_ADDRESS,,,0,6,,,
10,01/30/14,07:20:07,Assign,192.168.200.21,,5CF8A169E20C,,2452767822,0,,,
32,01/30/14,07:20:07,DNS Update Successful,192.168.200.21,BAD_ADDRESS,,,0,6,,,
30,01/30/14,07:20:15,DNS Update Request,192.168.231.2,U39Rm31-2.ludlow.local,,,0,6,,AAEBfU6IakW2GjJUF9LqGDA6HTGPvTf5uLEg39/xoy27s7Q=,
11,01/30/14,07:20:15,Renew,192.168.231.2,U39Rm31-2.ludlow.local,0011116E27A9,,2943185667,0,,,
32,01/30/14,07:20:15,DNS Update Successful,192.168.231.2,U39Rm31-2.ludlow.local,,,0,6,,AAEBfU6IakW2GjJUF9LqGDA6HTGPvTf5uLEg39/xoy27s7Q=,
30,01/30/14,07:20:15,DNS Update Request,192.168.100.20,android-6bb3d55f112e2c78.ludlow.local,,,0,6,,AAEBZ8X3hdJsXWkCTi64DjXKWgzR8VSvxXmR27vdeEmuXFc=,
11,01/30/14,07:20:15,Renew,192.168.100.20,android-6bb3d55f112e2c78.ludlow.local,10AE60DDC84E,,3515676649,0,,,
32,01/30/14,07:20:15,DNS Update Successful,192.168.100.20,android-6bb3d55f112e2c78.ludlow.local,,,0,6,,AAEBZ8X3hdJsXWkCTi64DjXKWgzR8VSvxXmR27vdeEmuXFc=,
30,01/30/14,07:20:16,DNS Update Request,192.168.200.68,BAD_ADDRESS,,,0,6,,,
11,01/30/14,07:20:16,Renew,192.168.200.68,,6021C0E66497,,3323928240,0,,,
32,01/30/14,07:20:16,DNS Update Successful,192.168.200.68,BAD_ADDRESS,,,0,6,,,
13,01/30/14,07:20:19,Conflict,192.168.200.68,BAD_ADDRESS,,,0,6,,,
30,01/30/14,07:20:21,DNS Update Request,192.168.200.68,BAD_ADDRESS,,,0,6,,,
10,01/30/14,07:20:21,Assign,192.168.200.68,,6021C0E66497,,4015370588,0,,,
32,01/30/14,07:20:21,DNS Update Successful,192.168.200.68,BAD_ADDRESS,,,0,6,,,
30,01/30/14,07:20:30,DNS Update Request,192.168.107.132,ShonaTrisiPhone.ludlow.local,,,0,6,,AAEBEAQoKj7rtYMVPEaXrk7cnBX90v+WX4e8VWX/LLIlYsQ=,
11,01/30/14,07:20:30,Renew,192.168.107.132,ShonaTrisiPhone.ludlow.local,8C58779AAE66,,3741452386,0,,,
32,01/30/14,07:20:30,DNS Update Successful,192.168.107.132,ShonaTrisiPhone.ludlow.local,,,0,6,,AAEBEAQoKj7rtYMVPEaXrk7cnBX90v+WX4e8VWX/LLIlYsQ=,
30,01/30/14,07:20:37,DNS Update Request,192.168.107.132,ShonaTrisiPhone.ludlow.local,,,0,6,,AAEBEAQoKj7rtYMVPEaXrk7cnBX90v+WX4e8VWX/LLIlYsQ=,
11,01/30/14,07:20:37,Renew,192.168.107.132,ShonaTrisiPhone.ludlow.local,8C58779AAE66,,3758229602,0,,,
32,01/30/14,07:20:37,DNS Update Successful,192.168.107.132,ShonaTrisiPhone.ludlow.local,,,0,6,,AAEBEAQoKj7rtYMVPEaXrk7cnBX90v+WX4e8VWX/LLIlYsQ=,
30,01/30/14,07:20:38,DNS Update Request,192.168.106.131,Martina-ipad2.ludlow.local,,,0,6,,AAEB4JkFG0yi5GATQmXtmGs+xNyzUMvp5CHQ7vC17roJRV8=,
11,01/30/14,07:20:38,Renew,192.168.106.131,Martina-ipad2.ludlow.local,E0B9BAD88CF4,,743727717,0,,,
32,01/30/14,07:20:38,DNS Update Successful,192.168.106.131,Martina-ipad2.ludlow.local,,,0,6,,AAEB4JkFG0yi5GATQmXtmGs+xNyzUMvp5CHQ7vC17roJRV8=,
30,01/30/14,07:21:24,DNS Update Request,192.168.236.10,U39Rm36-1Miel.ludlow.local,,,0,6,,AAEB9phYpXhSho8uUIuhgdv60Mgthppg4Vw9tU1MsxQLUNU=,
11,01/30/14,07:21:24,Renew,192.168.236.10,U39Rm36-1Miel.ludlow.local,7054D2457626,,2120051083,0,,,
32,01/30/14,07:21:24,DNS Update Successful,192.168.236.10,U39Rm36-1Miel.ludlow.local,,,0,6,,AAEB9phYpXhSho8uUIuhgdv60Mgthppg4Vw9tU1MsxQLUNU=,
30,01/30/14,07:21:32,DNS Update Request,192.168.100.4,Haileys-iPad.ludlow.local,,,0,6,,AAEBKB7Xlol/CFyRFfPIXdtUN1OmQ0w/zWeclSXhRX49EuM=,
11,01/30/14,07:21:32,Renew,192.168.100.4,Haileys-iPad.ludlow.local,ACCF5C2CB6DC,,437817067,0,,,
32,01/30/14,07:21:32,DNS Update Successful,192.168.100.4,Haileys-iPad.ludlow.local,,,0,6,,AAEBKB7Xlol/CFyRFfPIXdtUN1OmQ0w/zWeclSXhRX49EuM=,
30,01/30/14,07:21:33,DNS Update Request,192.168.117.131,Lisas-iPad-2.ludlow.local,,,0,6,,AAEBigaHvI9zgqVhhK4yfw0UxzAcRD0yLfh0mU5G6Lq33JI=,
11,01/30/14,07:21:33,Renew,192.168.117.131,Lisas-iPad-2.ludlow.local,A4D1D20EF3A7,,178302469,0,,,
32,01/30/14,07:21:33,DNS Update Successful,192.168.117.131,Lisas-iPad-2.ludlow.local,,,0,6,,AAEBigaHvI9zgqVhhK4yfw0UxzAcRD0yLfh0mU5G6Lq33JI=,
30,01/30/14,07:21:51,DNS Update Request,192.168.231.3,U39Rm31-3.ludlow.local,,,0,6,,AAEBZLIcMEpmxTb3TnhGsNRxgdLLmJ3biPg8dRuPqwkG0EE=,
11,01/30/14,07:21:51,Renew,192.168.231.3,U39Rm31-3.ludlow.local,001CC06D271A,,647858421,0,,,
32,01/30/14,07:21:51,DNS Update Successful,192.168.231.3,U39Rm31-3.ludlow.local,,,0,6,,AAEBZLIcMEpmxTb3TnhGsNRxgdLLmJ3biPg8dRuPqwkG0EE=,
30,01/30/14,07:21:57,DNS Update Request,192.168.231.4,U39Rm31-4.ludlow.local,,,0,6,,AAEB8jeDfIgZt/5EtAnoDCaYlU2UDndCxbY6+F8Q8jhcwZk=,
11,01/30/14,07:21:57,Renew,192.168.231.4,U39Rm31-4.ludlow.local,001CC06D2722,,1511683688,0,,,
32,01/30/14,07:21:57,DNS Update Successful,192.168.231.4,U39Rm31-4.ludlow.local,,,0,6,,AAEB8jeDfIgZt/5EtAnoDCaYlU2UDndCxbY6+F8Q8jhcwZk=,
30,01/30/14,07:21:59,DNS Update Request,192.168.102.1,LESKinder1.ludlow.local,,,0,6,,AAEBp2ylbEUqDPc66pqOvwGle4wCK2aPj7j68lVBh0Uz+HY=,
11,01/30/14,07:21:59,Renew,192.168.102.1,LESKinder1.ludlow.local,001320782CA2,,3119110832,0,,,

How to configure inbound ruleset in dynamic nat.

Hi ,
I have a doubt on configure the inbound rules for dynamic nat. I want to allow my web server (172.16.101.115) able connect from outside with tcp/443.
How do I configure the inbound ruleset for allow public connect to my webserver with tcp/443 in dynamic nat.
Here I have draw a diagram and some configuration i have configure in my ASA 8.2. Please correct me if I was wrong config it.
Public IP: 10.10.10.28
Private IPs:
172.16.101.115
172.16.101.116
172.16.101.117
172.16.101.118
172.16.101.119
172.16.101.120
access-list Web_nat permit ip host 172.16.101.115 any
access-list Web_nat permit ip host 172.16.101.116 any
access-list Web_nat permit ip host 172.16.101.117 any
access-list Web_nat permit ip host 172.16.101.118 any
access-list Web_nat permit ip host 172.16.101.119 any
access-list Web_nat permit ip host 172.16.101.120 any
nat (firewall-dmz) 1 access-list Web_nat
global (firewall-outbound) 1 10.10.10.28
access-list fw-outbound-access permit tcp any host 10.10.10.28 eq 443 //allow outside connect to my external ip.
access-list fw-dmz-access permit tcp any host 172.16.101.115 eq 443 //allow my translation ip connect to my webserver with tcp/443.

Hi,
I am not sure what you are attempting to configure here.
But what the NAT configuration above does is do a Dynamic PAT for all the servers on the "firewall-dmz" to a single IP address towards the "firewall-outbound"
This Dynamic translation doesnt however enable connections to be initiated from behind the "firewall-outbound" interface. When your hosting a server which needs a NAT towards the users then the NAT type has to be Static NAT or Static PAT.
Static NAT will essentially use up one public IP address for just the single local host/server.
Static PAT will do a Port Forward from the public IP address and public port to the local IP and local port. And this is most commonly used with environments which only public IP address is the one that the ASA holds in its WAN interface.
A typical Static NAT configuration is this
static (inside,outside) 1.1.1.1 10.10.10.10 netmask 255.255.255.255
Where
inside = is the interface behind which the host is
outside = is the interface towards which the host is NATed
1.1.1.1 = is the public NAT IP address for the host
10.10.10.10 = is the local IP address of the host
A typical Static PAT configuration is this
static (inside,outside) tcp interface 80 10.10.10.10 80 netmask 255.255.255.255
Where
tcp = specifies the protocol for which the Static PAT configured
interface = specifies that we will be using the public IP address of the destination interface "outside" as the public IP address for this single Port Forward.
80 = first "80" specifies the public port visible to users behind the destination interface
80 = second "80" specifies the actual local port on which the local host is listening on
Hope this helps
- Jouni

Dynamic DNS updates and issues with re-imaged / replaced machines with the same computer name

Our AD team gets asked frequently to delete bad DNS entries because a computer was replaced or VDI was re-created, and when it was joined to the domain it had the same computer name but different SID, so the DNS entry for that computer can no longer be updated
to a new IP address because the new computer doesn't have rights to update that object in DNS.
I recently saw a resolution to this was to set the security for DNS to allow updates from "Domain Computers" as described in the KB below.
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2005210
Has anyone done this? Any negative implications from this?
Thanks

Granting all domain computers write access to all records in the dns zone does solve the problem. On the negative side, DNS security is reduced significantly. For example, any user with admin rights locally on his/her computer will be able to sabotage
services in your domain by deleting or changing host records of domain controllers, servers or other client computers.
A more secure solution in this case will be configuring DHCP servers to update DNS on behalf of the client and granting DHCP servers appropriate access to DNS zone. Take a look at
Configuring Secure Dynamic Update for more info.
Gleb.

RW215W Dynamic DNS update interval

Hi,
I have a RW215W Router. Using a mobile broadband dongle for internet connection and the public ip changes every time the dongle is connected. I´m using a ddns service. I need update the new ip to the ddns service more frequent or when ip changes. Is this possible? any suggestions?

Hi,
Please check if your multiple DHCP has joint the group DnsUpdateProxy or not. To do this, you can refer to:
DNS Record Ownership and the DnsUpdateProxy Group:
http://technet.microsoft.com/en-us/library/dd334715(WS.10).aspx
Also check if the client service “DNS client service" is running fine.
Meanwhile, please refer to these articles:
Troubleshooting dynamic updates
Solving Dynamic Update and Secure Dynamic Update Problems
Karen Hu
TechNet Community Support

Workflow - How to configure to send all fields when updating

Record type: Lead
Workflow trigger: When modified record saved
Workflow action: Create integration event
Only modified fields are in the XML file. How can I make it so it will pass all fields that have values and not just modified ones?
Thanks

I have to query it after getting it back from the queue.

HB3 / Dynamic DNS Update time

Does anyone know;
1. What the default update time is on the dymanic DNS settings and
2. is it possible to amend it?
thank you

If you mean can you alter when your IP changes no I don't think you can. I have had one for 6 weeks and the next for a few days. A

Dynamic dns update client for archbox behind router?

I tried ez-ipupdate but i found out it cant work if youre behind router....anyone know any i can dload that do? :oops:

RahJiggah wrote:I tried ez-ipupdate but i found out it cant work if youre behind router....anyone know any i can dload that do? :oops:
Yeah, that one just don't cut the mustard. Try "ddclient". I started a thread a long time ago comparing different dyndns clients, and found "ddclient" had the richest feature set, including a lot of support for you router folk.
Try this thread.

Comcast dynamic DNS configuration

I'm really inexperienced with this stuff, and I just got a letter from Comcast saying that I need to configure "my PC for dynamic DNS communication".
I have Airport extreme directly connected to my Comcast modem, and one iMac is served wirelessly and the other wired to the Airport Express station.
What do I need to do? Anybody? Everything seems to work here now and I hate to mess it up, but they keep sending me dire warnings!....
edavid

As per Frank i checked my settings...

Dynamic DNS issues and/or confusion

I work for a small university. We have two domain controllers running on Windows 2008 (not R2). On dc2 we have a DHCP server running serving several VLANs across campus. We've been having issues where the dynamic DNS entries contain an
incorrect IP address for several machines. In some cases there are even several entries for a single machine. I've notice two main issues by looking at the DNS server. First, old entries aren't being cleaned up. Second, after re-imaging
a workstation the DNS entry for that machine is not being updated. After doing some research I came across the blog entry from Ace Fekay on how to go about setting up dynamic DNS. I immediately determined from reading that scavenging was not setup
properly on our server. I think I've corrected that problem, but I'll have to be patient and see what happens over time. This brings me to the issue of machines not adding themselves or updating their records in DNS.
After reading Ace's blog I decided to follow his recommendations for configuring dynamic DNS. I created a normal active directory user to use for configuring the DHCP credentials (it appears our server was set to use domain administrator previously).
I added the DHCP computer object (this is also one of our domain controllers) to the DnsUpdateProxy group. On the DHCP server I have checked "Enable DNS dynamic updates according to the settings below" along with the "Always A and PTR
records when lease is deleted". I also checked "Dynamically update DNS A and PTR records for DHCP clients that do not request updates...". After doing all of this I rebooted the dc2 server. I then manually deleted all of the
existing dynamic entries on the DNS server, so they could properly be recreated. Now, here is the problem after setting all of this up. I'm now seeing student's personal machines, phones, tablets, etc. being populated in our DNS. Before making
these changes only domain joined machines existed in DNS. Our DNS is configured to allow only secure updates. Why is it that now non domain trusted devices are being allowed to create DNS entries? I was under the assumption that secure updates
meant domain only. Am I not understanding something properly here? Can someone please provide me some insight to what's going on and what I might be able to do to prevent non-domain joined devices from having entries created in DNS?

Hi,
According to your description, my understanding is that non domain trusted devices have been registered their DNS entries in DNS which is configured to allow only secure updates.
If a DHCP server that is running on a domain controller is configured to perform dynamic updates on behalf of its clients, that DHCP server is able to take ownership of any record, even in the zones that are configured to allow only secure dynamic update.
This is because a DHCP server runs under the computer account, so if it is installed on a domain controller it has full control over DNS objects stored in the Active Directory.
DHCP server will perform dynamic updates on behalf of its clients when you enable the option "Dynamically update DNS A and PTR records for DHCP clients that do not request updates...", and this means that the “owner” of the DNS entries is
DHCP server, not the clients. And the zone accepts the DHCP server’s update because the server has full permission.
You may try to uncheck the option "Dynamically update DNS A and PTR records for DHCP clients that do not request updates...".
Best Regards,
Eve Wang
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected].
Hi Eve,
You are correct in your understanding that "non domain trusted devices have been registered their DNS entries in DNS which is configured to allow only secure updates." I also made a mistake in my original post. I meant to say that I also
had "Always dynamically update DNS A and PTR records".
Now back to your reply. Are you saying that if I had my DHCP server running on a non-domain controller that I would be seeing a different behavior in regards to permissions of DNS objects and that I wouldn't be experiencing the behavior of non domain
trusted devices being created in a secure zone? I thought setting the DNS dynamic credentials to a normal user account was supposed to help with security concerns in regards to DNS objects. What would happen if someone named their personal computer
the same name as one of our file servers or even a domain controller? Would the DHCP/DNS server actually have the power to overwrite that record in DNS?
I'll try your recommendation of unchecking the "Dynamically update DNS A and PTR records..." option and see what happens.
Thanks for your reply...

Dynamic DNS (via DHCP) out of the box?

Greetings!
I was just wondering... Does OS X support Dynamic DNS updates out of the box?
I can't seem to find any confirmation if 10.5 uses bootpd (which I think it does), and if bootpd supports dynamic DNS updates with the named service built into Leopard Server. There don't seem to be any options in Server Admin to enable this... So I'm a little hazy as how to enable dynamic DNS without compiling my own version of ISC-DHCP.
Just for clarification here; what I'm looking for is the ability to update a DNS zone with a PTR/A record(s) of machines that send a hostname as a part of retrieving a IP address from a DDNS-enabled DHCP server. Ie, "mybox" requests IP from DHCP server, DHCP server updates "mydomain.tld" with a record for "mybox", so that "mybox.mydomain.tld" is resolvable afterwards by the machines on this subnet.
Cheers,
-SC

This is a strange topic because implementing Dynamic DNS on Mac OS X Server looks like it should be child's play... so why hasn't Apple done it? Could it simply be that Apple sees no need for it at this time? Mac OS X clients don't need it to sit happy with a Mac OS X Server. Neither do Windows clients using a Mac OS X Server PDC.
Apple has implemented Dynamic DNS client support into the Active Directory Plug-in in Leopard. In this environment, of course, the client's DNS server is most likely to be an Active Directory-integrated DNS server which happily support DDNS. Unfortunately this Dynamic DNS facility is not immediately available to those not using the Active Directory plug-in.

Compatible Dynamic DNS Services

Does anyone know about ANY FREE Dynamic DNS service compatible with the Dynamic Global Hostname settings in Airport Extreme (MC340LL/A A1354)?
My registar/hosting (DreamHost) doesn't allow dynamic dns updates, except through local shell or perl scripts, or APIs on the web server — as far as I know. Dyndns.com only allows it with Custom DNS Zones, which are not free. And I would rather not use those silly update clients.
Oh, and I'm not willing to pay $99/yr for a MobileMe account just to have my home.owndomain.com pointed to my dynamic IP. Ain't gonna happen!
Thanks in advance!

Hi, Tesserax. Thanks for the welcome!
I've been using DynDNS with a D-Link router, but it got replaced.
Their words:

Which means it CAN be done, but only with Custom DNS. First, I think $29.95 for just a pointer is a little expensive; second, I would have to move my DNS services from my hosting. Too much ado, so I'm looking for an alternative — without success so far. I just want something that uses DNS Update protocol and TSIG security.
Meanwhile, I set up an API from my hosting and a perl script running on the boot to check if DNS is pointing to the right IP. It just works, clean and simple. But it's not a built-in solution and I cannot take advantage of wide area Bonjour, for example.
So, if does anyone know about it — a free dynamic dns service that uses DNS Update protocol and TSIG security —, please let me know.
Thanks,
Gui

How to Configure bootpd to Perform Dynamic DNS Updates

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