router contains a built-in switch versus router without a built-in switch
in [Firewalls]
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From: jrefactors on 15 Sep 2005 01:22 What's the differences between router contains a built-in switch and router without a built-in switch?? Some routers even have built-in firewall. I saw many routers in the market has built-in switch, but I don't know why, and what's the advantages? please advise. thanks!!
From: Duane Arnold on 15 Sep 2005 03:03 <jrefactors(a)hotmail.com> wrote in message news:1126761720.798936.250370(a)f14g2000cwb.googlegroups.com... > What's the differences between > > router contains a built-in switch > and > router without a built-in switch?? A router with a built-in switch works on the same principles as a standalone switch. A router with a built in switch can be configured to just be a switch and not a router by disabling the DHCP server on the router and then it's just a standalone switch. http://www.homenethelp.com/web/explain/about-hubs-and-switches.asp I don't know about routers without a built-in switch. > > Some routers even have built-in firewall. Some routers use a packet filter FW solution like SPI some don't and some routers use more than SPI a more powerful packet filter. Most NAT routers for home usage fall into the category of the link below. http://www.homenethelp.com/web/explain/about-NAT.asp About firewalls http://www.more.net/technical/netserv/tcpip/firewalls/ What does a computer, router or appliance running a network/Internet FW do? http://www.firewall-software.com/firewall_faqs/what_does_firewall_do.html > > I saw many routers in the market has built-in switch, but I don't know > why, and what's the advantages? see link above about hubs and switches Duane :)
From: Volker Birk on 15 Sep 2005 04:17 In comp.security.firewalls jrefactors(a)hotmail.com wrote: > What's the differences between > router contains a built-in switch > and > router without a built-in switch?? If routers are also switches, then they're offering both of these two functionalities: http://en.wikipedia.org/wiki/Router http://en.wikipedia.org/wiki/Network_switch A router works layer 3, a switch works layer 2 in the OSI reference model, see http://en.wikipedia.org/wiki/OSI_model#Description_of_layers > Some routers even have built-in firewall. That usually means, that the devices have some extra filtering functionality. Yours, VB. -- "Es kann nicht sein, dass die Frustrierten in Rom bestimmen, was in deutschen Schlafzimmern passiert". Harald Schmidt zum "Weltjugendtag"
From: David H. Lipman on 15 Sep 2005 10:59 From: "Duane Arnold" <Notme(a)Notme.com> | | <jrefactors(a)hotmail.com> wrote in message | news:1126761720.798936.250370(a)f14g2000cwb.googlegroups.com... >> What's the differences between >> >> router contains a built-in switch >> and >> router without a built-in switch?? | | A router with a built-in switch works on the same principles as a standalone | switch. A router with a built in switch can be configured to just be a | switch and not a router by disabling the DHCP server on the router and then | it's just a standalone switch. | | http://www.homenethelp.com/web/explain/about-hubs-and-switches.asp | | I don't know about routers without a built-in switch. | >> Some routers even have built-in firewall. | | Some routers use a packet filter FW solution like SPI some don't and some | routers use more than SPI a more powerful packet filter. | | Most NAT routers for home usage fall into the category of the link below. | | http://www.homenethelp.com/web/explain/about-NAT.asp | | About firewalls | | http://www.more.net/technical/netserv/tcpip/firewalls/ | | What does a computer, router or appliance running a network/Internet FW do? | | http://www.firewall-software.com/firewall_faqs/what_does_firewall_do.html | >> I saw many routers in the market has built-in switch, but I don't know >> why, and what's the advantages? | | see link above about hubs and switches | | Duane :) | Duane: Disabling DHCP on a Router with an E-Switch is often insufficient. uPnP would also have to be disabled. There have been posts about this here, in dcom.modems.cable and dcom.xdsl. Disabling the Router part will depend upon the vendor and model Router+E-switch. One last point. SOHO Router's with built-in E-switches tend to have high switching latencies. Thus their cheap price. This may or may not be a problem in a SOHO environment. For those that need excellent transfer rates between LAN nodes, they may choose to get a Router without an E-switch and get a managed E-switch from; Foundry, Nortel, 3Com, CISCO, etc. -- Dave http://www.claymania.com/removal-trojan-adware.html http://www.ik-cs.com/got-a-virus.htm
From: Duane Arnold on 15 Sep 2005 11:12
"David H. Lipman" <DLipman~nospam~@Verizon.Net> wrote in message news:2%fWe.35908$vQ3.25749(a)trnddc08... > From: "Duane Arnold" <Notme(a)Notme.com> > > | > | <jrefactors(a)hotmail.com> wrote in message > | news:1126761720.798936.250370(a)f14g2000cwb.googlegroups.com... >>> What's the differences between >>> >>> router contains a built-in switch >>> and >>> router without a built-in switch?? > | > | A router with a built-in switch works on the same principles as a > standalone > | switch. A router with a built in switch can be configured to just be a > | switch and not a router by disabling the DHCP server on the router and > then > | it's just a standalone switch. > | > | http://www.homenethelp.com/web/explain/about-hubs-and-switches.asp > | > | I don't know about routers without a built-in switch. > | >>> Some routers even have built-in firewall. > | > | Some routers use a packet filter FW solution like SPI some don't and > some > | routers use more than SPI a more powerful packet filter. > | > | Most NAT routers for home usage fall into the category of the link > below. > | > | http://www.homenethelp.com/web/explain/about-NAT.asp > | > | About firewalls > | > | http://www.more.net/technical/netserv/tcpip/firewalls/ > | > | What does a computer, router or appliance running a network/Internet FW > do? > | > | > http://www.firewall-software.com/firewall_faqs/what_does_firewall_do.html > | >>> I saw many routers in the market has built-in switch, but I don't know >>> why, and what's the advantages? > | > | see link above about hubs and switches > | > | Duane :) > | > > Duane: > > Disabling DHCP on a Router with an E-Switch is often insufficient. uPnP > would also have to > be disabled. There have been posts about this here, in dcom.modems.cable > and dcom.xdsl. > Disabling the Router part will depend upon the vendor and model > Router+E-switch. OK, I'll go with the uPuP thing, but most of the time that's disabled by default is it not? It's been awhile since I last looked at a router for home usage. > > One last point. SOHO Router's with built-in E-switches tend to have high > switching > latencies. Thus their cheap price. This may or may not be a problem in a > SOHO environment. > For those that need excellent transfer rates between LAN nodes, they may > choose to get a > Router without an E-switch and get a managed E-switch from; Foundry, > Nortel, 3Com, CISCO, > etc. But for the average home user network where a router was converted into a switch to plug into a gateway router of FW appliance, I don't think it's much of a concern. I did that with the Linksys BEFW11S4 v1 router and for wired or wireless machines using it as a switch, I didn't notice anything. It was business as usual. Duane :) |