Cisco 837 vs 857 ADSL Routers
Ian Wilson
What I need it for:
* 8Mbps ADSL access to Internet (web sites, email, newsgroups etc) for a
small office. (i.e protocols HTTP, SMTP, POP, NNTP, FTP)
* NAT support so all users share a single external fixed IP-address.
* VPN support (not just pass-through) so that the router will initiate a
VPN tunnel to a customer site (where they have a Checkpoint Firewall-1
device) whenever a user attempts to make a TCP connection to an
IP-address at the customer site (telnet, FTP, SSH, whatever).
My skills:
* I don't know IOS.
* I have some basic knowledge of IP routing.
* I have configured home ADSL routers.
* I have set up and used Windows based VPNs
I've read Ciscos's datra sheets for the two devices and can see a few
relatively minor differences (PAP, CHAP, AES, SSH) but Cisco make it
hard to compare the 837 and 857.
Should I buy an 837 or an 857?
Drake
"Ian Wilson" <scob...@infotop.co.uk> wrote in message
news:1YqdnTQC39l...@bt.com...
> I'm confused - what is the difference between the 837 and the 857?
>
> What I need it for:
>
> * 8Mbps ADSL access to Internet (web sites, email, newsgroups etc) for a
> small office. (i.e protocols HTTP, SMTP, POP, NNTP, FTP)
>
> * NAT support so all users share a single external fixed IP-address.
>
> * VPN support (not just pass-through) so that the router will initiate a
> VPN tunnel to a customer site (where they have a Checkpoint Firewall-1
> device) whenever a user attempts to make a TCP connection to an IP-address
> at the customer site (telnet, FTP, SSH, whatever).
>
> I've read Ciscos's datra sheets for the two devices and can see a few
> relatively minor differences (PAP, CHAP, AES, SSH) but Cisco make it hard
> to compare the 837 and 857.
>
> Should I buy an 837 or an 857?
You should also consider the 877 ;-) I think the 837 is EOS (Not sold by
Cisco).
The main difference is that the 857 supports ADSL2/2+. You are at the upper
limit
of ADSL, so the 837 might work for you. Get an 857, your provider might
offer cheap
ADSL2/2+ in the near future. Get an 877 if you want more advanced features
such
as VLANs (managed 4 port switch).
--
Posted via a free Usenet account from http://www.teranews.com
Doug McIntyre
>I'm confused - what is the difference between the 837 and the 857?
The 837 is an older product. The 877 is the current equivilent.
Not sure when the 837 is slated for EOS/EOE. In the past, cisco
offered the 827/837. Current new products are the 857/877.
Software feature wise, you aren't going to find much difference in
Cisco within the same class routers. Ie. all the 8xx running the same
version of software and same feature license software will support the
same things in general.
The main difference is going to be hardware features between the
various 8xx boxes. The 857/877 are the new current ones, ie. will have
the faster CPU, more options, etc.
The 877 has hw VPN acceleration and a managed 4-port switched compared
to the 857 which doesn't have the hardware crypto chip and just a
basic switch.
You can still do VPNs on either, but the 877 will have CPU left over
instead of maxing out the CPU if its doing anything intensive.
As somebody pointed out the 857/877 will do ADSL2+ if your telco
provider ever rolls that out, not sure if any have that planned yet.
www.BradReese.Com
CISCO837-K9
Cisco 837 ADSL Router
---------------------------------------
Fixed LAN Port Connections: 4-port Ethernet switch (10BASE-T)
Fixed WAN Port Connections: 1-port ADSL over POTS
Flash Memory: 12MB (default) 24MB (max)
DRAM Memory: 48MB (default) 48MB (max)
Dimensions (H x W x D): 2.0 x 9.7 x 8.5 in. (5.1 x 24.7 x 21.1 cm)
---------------------------------------
CISCO857-K9
Cisco 857 ADSL Router
CISCO857W-G-A-K9
Cisco 857 ADSL Wireless Router; U.S. and Americas
CISCO857W-G-E-K9
Cisco 857 ADSL Wireless Router; Europe
---------------------------------------
Fixed LAN Port Connections: 4-port 10/100 Ethernet switch
Fixed WAN Port Connections: 1-port ADSL, ADSL 2/2+
Wireless LAN: IEEE 802.11 b/g ("W" model)
Wireless Antenna: Single fixed antenna
Maximum VPN Tunnels: 5
NAC: No
URL Filtering: No
Stateful Firewall: Yes
Inline IPS: No
---------------------------------------
Cisco 837 and Cisco 857 Config Wizards:
http://www.bradreese.com/cisco-tools.htm
---------------------------------------
Sincerely,
Brad Reese
2007 Cisco Salary Rates
http://www.bradreese.com/compensation-database.htm
JF Mezei
> Fixed WAN Port Connections: 1-port ADSL over POTS
> Fixed WAN Port Connections: 1-port ADSL, ADSL 2/2+
Pardon my newbie ignorance, but do those two routers actually include the
DSL modem in them (eg: the WAN port in a POTS RJ11 plug), or is it just an
ethernet port to which you plug in a real DSL modem ?
If the Cisco unit actually include the DSL modems, do you know if they use
the alcatel chipset or does Cisco have their own chipset ?
Walter Roberson
JF Mezei <jfmezei...@vaxination.ca> wrote:
>www.BradReese.Com wrote:
>> Fixed WAN Port Connections: 1-port ADSL over POTS
>> Fixed WAN Port Connections: 1-port ADSL, ADSL 2/2+
>Pardon my newbie ignorance, but do those two routers actually include the
>DSL modem in them (eg: the WAN port in a POTS RJ11 plug),
Yes, the 837 and 857 have real ADSL, as do a few other models:
http://www.cisco.com/en/US/products/hw/routers/ps380/prod_models_comparison.html
>or is it just an
>ethernet port to which you plug in a real DSL modem ?
>If the Cisco unit actually include the DSL modems, do you know if they use
>the alcatel chipset or does Cisco have their own chipset ?
http://www.cisco.com/en/US/products/hw/routers/ps380/products_data_sheet09186a008010e5c5.html
Cisco 837 Router ADSL Specifications
o ST-Micro DynaMiTe (formerly Alcatel Micro Electronics) ADSL Chipset (20150)
o T1.413 ANSI ADSL DMT issue 2
o G.992.1 ITU G.DMT support
o G.992.2 ITU G.Lite support
o G.992.3 ITU G.hs ADSL type negotiation
The chipset does not provide interoperability with carrierless
amplitude modulation/phase modulation (CAP)-based ADSL lines.
JF Mezei
> Yes, the 837 and 857 have real ADSL, as do a few other models:
> http://www.cisco.com/en/US/products/hw/routers/ps380/prod_models_comparison.html
Interesting. My gut reaction would be "but I would be tied to DSL, and if
I wanted to switch to cable or other technology, I'd have to buy a whole
new router".
For a SOHO environment, switching from DSL to Cable and vice versa could be
a costly endeavour (and having to call in someone to reconfigure a new
router).
But for a large enterprise, the ease of remote management for a single
modem/router combo is probably an advantage, and they don't really care
about price of changing router if the link is changed to non DSL environment.
Is that a fair assesment ?
Ian Wilson
> Ian Wilson <scob...@infotop.co.uk> writes:
>
>>I'm confused - what is the difference between the 837 and the 857?
>
> version of software and same feature license software will support the
> same things in general.
Do I need to separately purchase any "feature license software" in order
to initiate site-site VPNs or to accept incoming WinXP VPN connections?
Bo...@hotmail.co.uk
877 and 837 (but not 857) can be used with two seperate
ethernet networks so that you could use them with different
technologies.
831, 851, 871 have an Ethernet port for the Outside interface.
i.e. 5 Ethernet ports.
There is by the way no restriction that I am aware of on which ports
are inside and which are outside except of course that ADSL
inside would be somewhat unusual. Firewall NAT etc can be
used either way round.
The 1800 series have interchangable interfaces but you may be surprised
at the cost of an interface card.
The 857 does I am pretty sure have VPN/crypto offload processor.
It lacks:
- multiple internal VLANS
- has 60% of the forwarding rate
- QoS features
Check the Feature Navigator
www.cisco.com/go/fn
Basically 85x won't run the advanced IP services Feature set.
<googles> http://www.nextag.com/cisco-wic_-_1adsl/search-html
Walter Roberson
JF Mezei <jfmezei...@vaxination.ca> wrote:
>Walter Roberson wrote:
>> Yes, the 837 and 857 have real ADSL, as do a few other models:
>http://www.cisco.com/en/US/products/hw/routers/ps380/prod_models_comparison.html
>Interesting. My gut reaction would be "but I would be tied to DSL, and if
>I wanted to switch to cable or other technology, I'd have to buy a whole
>new router".
>For a SOHO environment, switching from DSL to Cable and vice versa could be
>a costly endeavour (and having to call in someone to reconfigure a new
>router).
Cisco has a large market in selling the 837 to broadband providers
to *be* the ADSL modem. And, of course, to consumers who choose
to purchase the device rather than lease it from the broadband provider.
Doug McIntyre
Look for the part # part of -K9 on the part. I believe thats the only
way you can buy the 837/857/877.
The K9 signfies that its already bundled with the 3DES/IPSec license feature.
Since the only bundles you can buy are already -k9, there's no need to
addon the same license feature again.
If you are looking at some of the ISR's, then you can buy them without
the IPsec feature license, and it gets to be an expensive addon.