+1 - that was what I was thinking, and had to re-read the OP question to make sure he wasn't talking about some kind of Serial WIC (Wan Interface Card). Perhaps that's where it comes from and they just haven't changed their terminology to keep up with the times? I'd love to know the answer as to why they refer to it as "serial".
Jonathan L. Raper, A+, MCSA, MCSE Technology Coordinator Eagle Physicians & Associates, PA [email protected] www.eaglemds.com -----Original Message----- From: Mayo, Bill [mailto:[email protected]] Sent: Wednesday, November 03, 2010 11:56 AM To: NT System Admin Issues Subject: RE: Connecting an ASA Firewall directly to internet ethernet dropoff ? I think you are correct about the serial connection being between you and the ISP's routers. When I see "serial" associated with a router, I assume that it is some type of telco/serial connection (e.g. T1). A typical connection to an ISP would be some kind of telco line to which you would have a serial connection to your router. That serial connection requires a network in order to route between you and the ISP (at least an IP address for your serial interface and one for theirs). You can then also have an address range that is available for you to use for your public IP's. If you don't have a telco/serial connection to your ISP, then I am not sure why that term would be used. -----Original Message----- From: Jon D [mailto:[email protected]] Sent: Wednesday, November 03, 2010 11:45 AM To: NT System Admin Issues Subject: Re: Connecting an ASA Firewall directly to internet ethernet dropoff ? Thanks. Honestly I'm not 100% sure I understand the difference between Serial and CIDR. I *think* Serial is the connection between my router(or firewall) and the ISPs router and CIDR is the publically addressable IP addresses. Is CIDR just the term to say for example, a class C is split up into several smaller ranges? Like 6 IPs instead of 255, or does it mean something else? Thanks again for your help. I love learning new stuff. :) On Wed, Nov 3, 2010 at 11:18 AM, Raper, Jonathan - Eagle <[email protected]> wrote: > Jon, > > No problem. I would ask your ISP what they mean by "Serial" versus CIDR. > > How many IP Addresses did you request originally? > > The first one you list provides an address range of 182.40.6.12 - 134.40.6.15 > with a subnet mask of 255.255.255.252 (hence the CIDR /30), with 2 useable IP > Addresses. I'm guessing 182.40.6.12 may be where you point your default route? > > The second one you list provides an address range of 134.120.4.0 - > 134.120.4.7, with a subnet mask of 255.255.255.248 (hence the CIDR /29), with > 6 useable IP Addresses. > > You said you're new to this - do you understand the concept of CIDR? > (don't feel bad if you don't - we're here to help!) > > Jonathan L. Raper, A+, MCSA, MCSE > Technology Coordinator > Eagle Physicians & Associates, PA > [email protected] > www.eaglemds.com > > > -----Original Message----- > From: Jon D [mailto:[email protected]] > Sent: Wednesday, November 03, 2010 10:48 AM > To: NT System Admin Issues > Subject: Re: Connecting an ASA Firewall directly to internet ethernet dropoff > ? > > Good question. I'm new to this. Our ISP gave me something like this > > Serial 182.40.6.14/30 > CIDR 134.120.4.6/29 > > The internet side of the ASA is connected to the 182.40.6.x range and > it can ping out. So maybe I should just ignore the 134.120.4.x range? > > > > > > > On Wed, Nov 3, 2010 at 10:18 AM, Raper, Jonathan - Eagle > <[email protected]> wrote: >> Our Internet connection comes straight into our ASA. I understand CIDR, but >> what do you mean by "serial IP"? >> >> Your default route in your ASA would point to your ISP's gateway address >> that they provide you. >> >> Jonathan L. Raper, A+, MCSA, MCSE >> Technology Coordinator >> Eagle Physicians & Associates, PA >> [email protected] >> www.eaglemds.com >> >> >> -----Original Message----- >> From: Jon D [mailto:[email protected]] >> Sent: Wednesday, November 03, 2010 9:59 AM >> To: NT System Admin Issues >> Subject: Connecting an ASA Firewall directly to internet ethernet dropoff ? >> >> If you have an ethernet drop off to the internet, and a new Cisco >> ASA, and no router, can you connect it to the internet? >> I have a CIDR range, and a Serial range. >> >> Right now I have 1 interface with an inside natted address and 1 >> interface with a serial ip. >> Should I have a 3rd interface configured with an ip from the CIDR range? >> >> I can currently, from the ASA, ping inside and outside, but I can't >> hit anything to the CIDR range.... >> >> >> >> >> Thanks, >> Jon >> >> ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ >> <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ >> >> --- >> To manage subscriptions click here: >> http://lyris.sunbelt-software.com/read/my_forums/ >> or send an email to [email protected] >> with the body: unsubscribe ntsysadmin >> >> Any medical information contained in this electronic message is CONFIDENTIAL >> and privileged. 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Do not deliver, distribute or copy this message, and do not >> disclose its contents or take any action in reliance on the information that >> it contains. >> >> ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ >> <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ >> >> --- >> To manage subscriptions click here: >> http://lyris.sunbelt-software.com/read/my_forums/ >> or send an email to [email protected] >> with the body: unsubscribe ntsysadmin >> >> > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ > <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > --- > To manage subscriptions click here: > http://lyris.sunbelt-software.com/read/my_forums/ > or send an email to [email protected] > with the body: unsubscribe ntsysadmin > > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ > <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > --- > To manage subscriptions click here: > http://lyris.sunbelt-software.com/read/my_forums/ > or send an email to [email protected] > with the body: unsubscribe ntsysadmin > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
