topic ASA: IPSec Tunnel to 880 Router Sitting Behind DSL Modem in Network Security https://community.cisco.com/t5/network-security/asa-ipsec-tunnel-to-880-router-sitting-behind-dsl-modem/m-p/1371354#M750386 <P>Please give me a sanity check on whether or not I need to request from the ISP a hard coated ip address in order to make the following work:</P><P></P><P>ASA at headquarters and 880 router in a remote home office sitting behind a DSL modem. All I see in the documentation is the need for the peers to be clearly specified by IP address.</P><P></P><P>Please point me to the document if there is some other method to do this or I am reading things incorrectly.</P><P></P><P>Thanks in advance.</P><P></P><P>Paul</P> Mon, 11 Mar 2019 17:02:47 GMT pmccubbin 2019-03-11T17:02:47Z ASA: IPSec Tunnel to 880 Router Sitting Behind DSL Modem https://community.cisco.com/t5/network-security/asa-ipsec-tunnel-to-880-router-sitting-behind-dsl-modem/m-p/1371354#M750386 <P>Please give me a sanity check on whether or not I need to request from the ISP a hard coated ip address in order to make the following work:</P><P></P><P>ASA at headquarters and 880 router in a remote home office sitting behind a DSL modem. All I see in the documentation is the need for the peers to be clearly specified by IP address.</P><P></P><P>Please point me to the document if there is some other method to do this or I am reading things incorrectly.</P><P></P><P>Thanks in advance.</P><P></P><P>Paul</P> Mon, 11 Mar 2019 17:02:47 GMT https://community.cisco.com/t5/network-security/asa-ipsec-tunnel-to-880-router-sitting-behind-dsl-modem/m-p/1371354#M750386 pmccubbin 2019-03-11T17:02:47Z Re: ASA: IPSec Tunnel to 880 Router Sitting Behind DSL Modem https://community.cisco.com/t5/network-security/asa-ipsec-tunnel-to-880-router-sitting-behind-dsl-modem/m-p/1371355#M750392 <HTML><HEAD></HEAD><BODY><PRE __jive_macro_name="quote" class="jive_text_macro jive_macro_quote"><P>pmccubbin wrote:</P><P></P><P>Please give me a sanity check on whether or not I need to request from the ISP a hard coated ip address in order to make the following work:</P><P></P><P>ASA at headquarters and 880 router in a remote home office sitting behind a DSL modem. All I see in the documentation is the need for the peers to be clearly specified by IP address.</P><P></P><P>Please point me to the document if there is some other method to do this or I am reading things incorrectly.</P><P></P><P>Thanks in advance.</P><P></P><P>Paul</P></PRE><P></P><P>Paul</P><P></P><P>Well you will need a static IP for one end but the other end can be dynamic eg -</P><P></P><P><A href="http://www.cisco.com/en/US/tech/tk583/tk372/technologies_configuration_example09186a0080094a87.shtml">http://www.cisco.com/en/US/tech/tk583/tk372/technologies_configuration_example09186a0080094a87.shtml</A></P><P></P><P>Is this what you are asking ?</P><P></P><P>Jon</P></BODY></HTML> Thu, 28 Jan 2010 19:18:10 GMT https://community.cisco.com/t5/network-security/asa-ipsec-tunnel-to-880-router-sitting-behind-dsl-modem/m-p/1371355#M750392 Jon Marshall 2010-01-28T19:18:10Z Re: ASA: IPSec Tunnel to 880 Router Sitting Behind DSL Modem https://community.cisco.com/t5/network-security/asa-ipsec-tunnel-to-880-router-sitting-behind-dsl-modem/m-p/1371356#M750405 <HTML><HEAD></HEAD><BODY><P>Thanks, Jon. A "5" from NYC for helping me keep my sanity.</P></BODY></HTML> Thu, 28 Jan 2010 19:38:36 GMT https://community.cisco.com/t5/network-security/asa-ipsec-tunnel-to-880-router-sitting-behind-dsl-modem/m-p/1371356#M750405 pmccubbin 2010-01-28T19:38:36Z