12-28-2011 06:30 AM - edited 03-04-2019 02:46 PM
Hello everyone; I've been using this setting for clients in small offices and what not, and since all they wanted was to give another nutch of security to their network, we've been intalling cisco routers 2600 series still outhere for their internet connections and we had no issues what so ever, not until we run into cable isp provider, and their dhcp wont be able to assign our interface a dynamic IP, this is the setting aplied to the router interface;
interface fastethernet0/0
ip address dhcp
ip nat outside
no ip redirects
no ip unreachables
no ip proxy-arp
any ideas of why it wont be seen or assigned an ip by their dhcp, I talked to their isp and they assigned a static ip (private one) and we still have the same issue, if i connect a pix 506e interface with the ip add dhcp assigned to it gets a dynamic ip right away...
Solved! Go to Solution.
12-29-2011 05:46 AM
Update IOS to begin with. Then, there maybe special settings needed if ISP is using a DHCP relay.
12-29-2011 05:46 AM
Update IOS to begin with. Then, there maybe special settings needed if ISP is using a DHCP relay.
01-03-2012 01:38 PM
thanks for your answear, and sorry too be away and not able to get back to you guys... i'll try to upgrade the ios, and as far as sub-interfaces... it seems that I have no command for the dot1q on this ios ver (12.2(8)T10... any help will be great if you may know what ver could I upgrade to be able to get assigned a dynamic ip and sub-interfacing working for this application.
01-03-2012 02:52 PM
Write back once you have updated IOS to latest.
04-12-2012 02:17 PM
that did the trick.. new IOS and now an ip gets assigned dynamically
12-30-2011 11:14 AM
Hi,
Try to create a sub-interface on the WAN link with dot1q vlan set to 1. This should help.
Regards,
Pawan Sharma
12-30-2011 02:39 PM
pawan sharma wrote:
Hi,
Try to create a sub-interface on the WAN link with dot1q vlan set to 1. This should help.
Likely will not.
01-03-2012 09:29 PM
:-)
04-12-2012 02:14 PM
after a while the IOS got up-graded on the router and the ip add dhcp works fiena as well as encapsulation to the sub-interfaces thanks to all
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