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	<title>
	Comments on: Cisco ASA 5505 and DHCP Client Problems	</title>
	<atom:link href="https://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/feed/" rel="self" type="application/rss+xml" />
	<link>https://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/</link>
	<description>Security Stories and Help with Network Documentation</description>
	<lastBuildDate>Tue, 18 Nov 2008 00:53:48 +0000</lastBuildDate>
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	<item>
		<title>
		By: Steve		</title>
		<link>https://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/comment-page-1/#comment-41698</link>

		<dc:creator><![CDATA[Steve]]></dc:creator>
		<pubDate>Tue, 18 Nov 2008 00:53:48 +0000</pubDate>
		<guid isPermaLink="false">http://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/#comment-41698</guid>

					<description><![CDATA[I&#039;m having a similar problem.  I have a verizon dsl modem set to bridged mode and a ASA 5505.  Whenever the dsl modem gets rebooted, I have to click on &quot;renew dhcp lease&quot; in ASDM on the ASA.  Once I renew dhcp then internet is back up.  How come the ASA doesnt renew itself whenever the modem reboots?  The ASA is running ver. 7.2 (3).]]></description>
			<content:encoded><![CDATA[<p>I&#8217;m having a similar problem.  I have a verizon dsl modem set to bridged mode and a ASA 5505.  Whenever the dsl modem gets rebooted, I have to click on &#8220;renew dhcp lease&#8221; in ASDM on the ASA.  Once I renew dhcp then internet is back up.  How come the ASA doesnt renew itself whenever the modem reboots?  The ASA is running ver. 7.2 (3).</p>
]]></content:encoded>
		
			</item>
		<item>
		<title>
		By: ERic		</title>
		<link>https://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/comment-page-1/#comment-38844</link>

		<dc:creator><![CDATA[ERic]]></dc:creator>
		<pubDate>Tue, 09 Sep 2008 01:26:43 +0000</pubDate>
		<guid isPermaLink="false">http://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/#comment-38844</guid>

					<description><![CDATA[Problem I&#039;ve had with the 5505 is that when hooked to DSL and the ADSL set to bridging and the 5505 using a static IP it won&#039;t communicate with anything.  When I set the modem(DSL) with a static IP and set the 5505 to use DHCP on the outside interface, bang it works like a champ.  Don&#039;t know why it won&#039;t communicate in static mode like the VPN 3002 clients do.  Any help or pointers would be appreciated.

Eric]]></description>
			<content:encoded><![CDATA[<p>Problem I&#8217;ve had with the 5505 is that when hooked to DSL and the ADSL set to bridging and the 5505 using a static IP it won&#8217;t communicate with anything.  When I set the modem(DSL) with a static IP and set the 5505 to use DHCP on the outside interface, bang it works like a champ.  Don&#8217;t know why it won&#8217;t communicate in static mode like the VPN 3002 clients do.  Any help or pointers would be appreciated.</p>
<p>Eric</p>
]]></content:encoded>
		
			</item>
		<item>
		<title>
		By: Cisco ASA 5500 and the Hunt for the Lost Gateway - Networking		</title>
		<link>https://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/comment-page-1/#comment-23817</link>

		<dc:creator><![CDATA[Cisco ASA 5500 and the Hunt for the Lost Gateway - Networking]]></dc:creator>
		<pubDate>Wed, 14 Nov 2007 21:43:32 +0000</pubDate>
		<guid isPermaLink="false">http://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/#comment-23817</guid>

					<description><![CDATA[[...] my ISP wasn&#8217;t following the RFC for DHCP to the result that my ASA 5505 couldn&#8217;t get a DHCP lease, after talking with Cisco they quickly sent me a patch with a workaround and later published a new [...]]]></description>
			<content:encoded><![CDATA[<p>[&#8230;] my ISP wasn&#8217;t following the RFC for DHCP to the result that my ASA 5505 couldn&#8217;t get a DHCP lease, after talking with Cisco they quickly sent me a patch with a workaround and later published a new [&#8230;]</p>
]]></content:encoded>
		
			</item>
		<item>
		<title>
		By: Patrick Ogenstad		</title>
		<link>https://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/comment-page-1/#comment-23704</link>

		<dc:creator><![CDATA[Patrick Ogenstad]]></dc:creator>
		<pubDate>Mon, 12 Nov 2007 07:30:07 +0000</pubDate>
		<guid isPermaLink="false">http://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/#comment-23704</guid>

					<description><![CDATA[James: I never had any problems with the DHCP server in the ASA, it was the DHCP client. The problem was really that my ISP wasn&#039;t following the RFC for DHCP. I&#039;m using a Cisco ASA 5505 as a DHCP server for my home network, in a corporate environment I usually use a Windows Server acting as DHCP. However the ASA 5500 should probably suit your needs when it comes to DHCP. Regardless of you DHCP requirements it&#039;s a great firewall.]]></description>
			<content:encoded><![CDATA[<p>James: I never had any problems with the DHCP server in the ASA, it was the DHCP client. The problem was really that my ISP wasn&#8217;t following the RFC for DHCP. I&#8217;m using a Cisco ASA 5505 as a DHCP server for my home network, in a corporate environment I usually use a Windows Server acting as DHCP. However the ASA 5500 should probably suit your needs when it comes to DHCP. Regardless of you DHCP requirements it&#8217;s a great firewall.</p>
]]></content:encoded>
		
			</item>
		<item>
		<title>
		By: James T		</title>
		<link>https://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/comment-page-1/#comment-23699</link>

		<dc:creator><![CDATA[James T]]></dc:creator>
		<pubDate>Mon, 12 Nov 2007 02:46:47 +0000</pubDate>
		<guid isPermaLink="false">http://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/#comment-23699</guid>

					<description><![CDATA[I am looking at buying one of these and DHCP is something I&#039;m concerned about. Now that you&#039;ve had some time with it, does the 5500 make act as a good DHCP server for your LAN?]]></description>
			<content:encoded><![CDATA[<p>I am looking at buying one of these and DHCP is something I&#8217;m concerned about. Now that you&#8217;ve had some time with it, does the 5500 make act as a good DHCP server for your LAN?</p>
]]></content:encoded>
		
			</item>
		<item>
		<title>
		By: Patrick Ogenstad		</title>
		<link>https://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/comment-page-1/#comment-21958</link>

		<dc:creator><![CDATA[Patrick Ogenstad]]></dc:creator>
		<pubDate>Sat, 29 Sep 2007 20:03:59 +0000</pubDate>
		<guid isPermaLink="false">http://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/#comment-21958</guid>

					<description><![CDATA[Hi Ralph,

No problem, glad to hear that it worked out for you!]]></description>
			<content:encoded><![CDATA[<p>Hi Ralph,</p>
<p>No problem, glad to hear that it worked out for you!</p>
]]></content:encoded>
		
			</item>
		<item>
		<title>
		By: Ralph		</title>
		<link>https://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/comment-page-1/#comment-21916</link>

		<dc:creator><![CDATA[Ralph]]></dc:creator>
		<pubDate>Fri, 28 Sep 2007 18:01:50 +0000</pubDate>
		<guid isPermaLink="false">http://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/#comment-21916</guid>

					<description><![CDATA[This post saved me 2 days of frustration and replacing a unit that I did not have to in the first place.  Thank you for the tip “ip address dhcp client-id fastethernet 0″]]></description>
			<content:encoded><![CDATA[<p>This post saved me 2 days of frustration and replacing a unit that I did not have to in the first place.  Thank you for the tip “ip address dhcp client-id fastethernet 0″</p>
]]></content:encoded>
		
			</item>
		<item>
		<title>
		By: Patrick Ogenstad		</title>
		<link>https://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/comment-page-1/#comment-20941</link>

		<dc:creator><![CDATA[Patrick Ogenstad]]></dc:creator>
		<pubDate>Mon, 03 Sep 2007 18:51:56 +0000</pubDate>
		<guid isPermaLink="false">http://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/#comment-20941</guid>

					<description><![CDATA[You shouldn&#039;t have any problems using a 1811 to your purposes, if VZ FiOS has any problems with DHCP you can just use the command

ip address dhcp client-id fastethernet 0

Check out this page for some brief information of the security features of the 1800 series: http://www.cisco.com/application/pdf/en/us/guest/products/ps5854/c1650/cdccont_0900aecd80169b0a.pdf]]></description>
			<content:encoded><![CDATA[<p>You shouldn&#8217;t have any problems using a 1811 to your purposes, if VZ FiOS has any problems with DHCP you can just use the command</p>
<p>ip address dhcp client-id fastethernet 0</p>
<p>Check out this page for some brief information of the security features of the 1800 series: <a href="http://www.cisco.com/application/pdf/en/us/guest/products/ps5854/c1650/cdccont_0900aecd80169b0a.pdf" rel="nofollow ugc">http://www.cisco.com/application/pdf/en/us/guest/products/ps5854/c1650/cdccont_0900aecd80169b0a.pdf</a></p>
]]></content:encoded>
		
			</item>
		<item>
		<title>
		By: hackez		</title>
		<link>https://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/comment-page-1/#comment-20669</link>

		<dc:creator><![CDATA[hackez]]></dc:creator>
		<pubDate>Sun, 26 Aug 2007 20:58:16 +0000</pubDate>
		<guid isPermaLink="false">http://ogenstad.net/2007/03/14/cisco-asa-5505-and-dhcp-client-problems/#comment-20669</guid>

					<description><![CDATA[Hello, I wanted to know more information about the cisco 1811. Will be able to do DHCP from VZ FiOS? Also does it have port security? I just got one for $560 off ebay. I only touched 2600&#039;s at school while still doing my CCNA.]]></description>
			<content:encoded><![CDATA[<p>Hello, I wanted to know more information about the cisco 1811. Will be able to do DHCP from VZ FiOS? Also does it have port security? I just got one for $560 off ebay. I only touched 2600&#8217;s at school while still doing my CCNA.</p>
]]></content:encoded>
		
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