Cisco 806 router and Set Top Box
 

Hello - I'm a newbie on this forum and am looking for some help!

Has anyone set one of these up on the broadband connection? I have previously used a connection straight into a PC running as a hardware firewall and now want to put this Cisco router in. Will I have to clone the MAC of the old network card onto the router? Or is a question of releasing everything and then shutting it all down, connecting the new kit and starting afresh?

Thanks

Mike

Re: Cisco 806 router and Set Top Box
 

Hiya zazutata and :welcome: to the mad house :D


I've not used that router but when I installed mine I just connected everything up and rebooted the STB.
When I opened IE it took me to the PC provisioning page to reg the router on the STB.
Other than that... yeah you can just clone the MAC of the Network card onto the router :angel:

Re: Cisco 806 router and Set Top Box
 

Thanks...I have just managed to sort this one out. I too got the provisioning screen but try as I might I couldn't get the computers to be recognised. It was only after I checked the IP addresses of the PCs that I realised something was up. They were all getting 172.x.x.x addresses and the DNS servers were set to a similar range. Once I realised this I used the Cisco IOS to manage the router's DNS and set it to 'discover' the DNS servers. Once it had done this they went to the the normal NTL 194.x.x.x ones (but I'll be changing that soon because they're rubbish!). So it seems that the cloning isn't necessarily the issue here. Who knows...? But I got it all working - not that I'm running a network here or anything...;)

Re: Cisco 806 router and Set Top Box
 

Worth saying that when provisioning on an STB from behind a router you're registering the router's external MAC address, not any of the PCs. The PCs should be getting private IP addresses and the router should NAT them.

Initially the router should have a DHCP-assigned IP in the 10.x.x.x range with 172.16.x.x DNS, then after registration it should go to a normal ntl public IP (213.x, 80.x, 81.x, 82.x) with the usual DHCP-assigned DNS servers.

Re: Cisco 806 router and Set Top Box
 

That's what is happening now but at first the PCs were picking up 172.x addresses with that provisioning screen in my browser. Now all set up OK with the NAT running fine too. Thanks for all your help and good to see that there's a useful forum out there :)

Re: Cisco 806 router and Set Top Box
 

Dont forget to put in a ACL to block external access to telnet m8 :)

Re: Cisco 806 router and Set Top Box
 

i thought the 80x series of cisco was ISDN .....



[EDIT] i am now eating my 2 week old sock after looking on google...ignore me :rolleyes:

Re: Cisco 806 router and Set Top Box
 

There are also 80x routers for ADSL - eat another sock!! Thanks Stuartbe - the CRWS automtically blocks incoming telnet via the http firewall interface. Strangely, it allows ICMP echos so I edited to ACL to block these too along with a 'no IP unreachable' so it just bounces as dead space rather than an administrative denial. Just got to get the SNMP stuff going now along with Syslog. Anyone got any top tips for this??

Re: Cisco 806 router and Set Top Box
 

Glad you got it sorted. I use the syslog server at http://www.kiwisyslog.com/
Works fine for my Pix.....

HTH

Re: Cisco 806 router and Set Top Box
 

How much are said cisco BB routers? and are they any good?

Re: Cisco 806 router and Set Top Box
 

Well....I managed to get mine v cheap (£100) off eBay. Normally they are around $375 I think. I got mine as I wanted to get to grips with Cisco IOS and CLI stuff whilst using it at home. It is very good but setting it up isn't as easy as a cheaper hardware firewall like Linksys. The CRWS is OK but does not block everything so you need to know a little bit about setting up ACLs etc. As with all Cisco kit the build quality is great and the support is faultless. You pay for what you get. If you're just after a good firewall and don't want to play around with Cisco kit go for another (cheaper) model.