Home > Ip Address > WAN And LAN Default Gateways Are Different. Will This Be An Issue?

WAN And LAN Default Gateways Are Different. Will This Be An Issue?

Contents

In the Ethernet world it's a well known way to bypass pVLANs. Technology is 'stuff that doesn't work yet.' -- Bran Ferren 14-Jul-2011,05:05 #5 ken_yap View Profile View Forum Posts View Blog Entries View Articles Flux Capacitor Penguin Join Date Jun 2008 Location To be sure, disable it's wireless interface.Can R2 then be 192.168.1.1? opensuse Leap 42.2; KDE Plasma 5; opensuse tumbleweed; KDE Plasma 5 (test system); 14-Jul-2011,04:12 #4 vodoo View Profile View Forum Posts View Blog Entries View Articles Wise Penguin Join Date Jan this contact form

Since, as far as I can see it now, there's no inherent reason why networks A and B can't use the same range and both still access their own local devices But the BIG drawback is that while all the LAN ports on my routers are 1GB, the WAN ports are 100MB, creating a choking hazard...Clearly the best setup is the simple Also i noticed that R1 is assigning ips starting from 100 onwards. For me the OP still fails to report if he checked with netstat -rn that every system has the correct default GW and the assurance that those three gateways lead to

Wan Gateway Ip Address

I've been picturing the router as only ever passing traffic from WAN to LAN or from LAN to WAN, but never from LAN to LAN, except insomuch as it incorporates a If you do have overlap (say, due to a company merger), you work your butt off to get rid of it as fast as possible.Double NAT is avoided for similar reasons: So let's say that network B device at 192.168.1.2 needs to contact internet address 123.456.789.123.

you assign the ip address to the lan interface."In my case, in the WAN configuration menu y can choose between static IP or dynamic DHCP. In the Ethernet world it's a well known way to bypass pVLANs. It was my impression that the firewall might have been interfering, but I'm not sure of that. Wan And Gateway Must Be On The Same Network Click here to go to the product suggestion community what is the default gateway for your LAN and DMZ IamlookingforsomefeedbackfromthegrouptomakesureIamdoingthisright.IhavethreeNIContheAsatroserver.eth0ismyinsideprivatenetworkIp=192.168.1.1subnet255.255.255.0.eth1ismyexternalWANconnection,(ForexampleIP=64.32.146.2subnet255.255.255.0,gateway64.32.146.1)64.32.146.1ismyrouterinterface.MylastNIC,eth2ismyDMZwithIP=192.168.10.1subnet255.255.255.0.Myquestionisthis,whatshouldbethegatewayIuseformyinternalLAN(eth0)andDMZ(eth2).Forexample,foreth0,myinternalLANNIC(192.168.1.1),shouldmygatewayIPforeth0beblank,orIPofeth1(64.32.146.2) WhatgatewayIshoulduseformyDMZNic?

If all we're wanting is for "network B" (LAN) to have internet access, what's wrong with it using the same IP subnet as "network A"?(Thanks for the replies so far, guys Difference Between Wan Ip And Default Gateway That function can be undertaken by some other host, or hosts, perhaps with the assistance of DHCP relays. All rights reserved. http://www.wilderssecurity.com/threads/wan-ip-address-vs-default-gatway-ip-address.283447/ MaxIdiot Ars Tribunus Militum Registered: May 27, 2001Posts: 2079 Posted: Tue Apr 12, 2011 11:37 am Arbelac wrote:Multipoint FR is analogous to VLANs on a single Ethernet interface anyways (not exact,

Either way, Host A isn't going to get past NAT to directly contact Host B on the LAN. Wan Subnet Mask Frennzy "Live young. Register Login Posting Guidelines | Contact Moderators Ars Technica > Forums > Hardware & Tweaking > Networking Matrix Jump to: Select a forum ------------------ Hardware & Tweaking Audio/Visual Club He seems to think it would be harder somehow ("why would vendors waste their time jumping through that hoop"), which I don't really get, since to me forcing WAN and LAN

Difference Between Wan Ip And Default Gateway

same here Henk van Velden « Previous Thread | Next Thread » Bookmarks Bookmarks Digg del.icio.us StumbleUpon Google Facebook Twitter Posting Permissions You may not post new threads You may not https://supportforums.cisco.com/discussion/12301006/wan-default-gateway-problem-going-crazy Just want two routers to split the same subnet and share the Gateway and DNS.Many ThanksKolin See More: Two Routers on the same Home Network? Wan Gateway Ip Address As stated previously.Quote: (which may not be what we're wanting anyway)? Wan Gateway Ip Address Must Be Within The Wan Subnet I switched to using "dhclient" rather than "dhcpcd" as the dhcp client.

or in your example, 192.168.1.xxx goes out the WAN side.In your example, the router would see:192.168.1.xxx on the LAN side192.168.1.xxx on the WAN side. Riyas rasheed Apr 10, 2013 8:02 PM Can anyone suggest the IP to which the inpath Gateway and Default gateway of a RB point to? 3691Views Tags: none (add) Re: to Probably I was mislead by this remark in the original post: PCs and servers on the same subnet as the DNS, DHCP and default gateway ... However, if network B (LAN) sends something to the Internet, first of all, the router wouldn't understand why two networks with the same address space were on different subnets. Wan Ip Address And Lan Ip Address Cannot Be In A Same Subnet

Doesn't the router's NAT take care of stuff like that? Just because you draw a nice diagram that shows only one device using that IP on one interface doesn't mean the router knows that.I suggested you read a book because you've The router in turn is a DHCP client of the other router. It sees that the address is outside of its subnet, so it sends to the default gateway, which is the router.

sryan2k1 Ars Legatus Legionis et Subscriptor Tribus: Ann Arbor, MI Registered: Nov 28, 2002Posts: 35237 Posted: Tue Apr 12, 2011 11:21 am I edited what I said to match Frennzy:Quote:You can Ip Address And Default Gateway Are The Same But, this complicates matters a whole lot and in the end, it comes down to one simple question:"Why would you want to make more work for yourself and overcomplicate something relatively DavlinLotze Ars Scholae Palatinae Tribus: USA Registered: Aug 24, 2009Posts: 830 Posted: Fri Apr 08, 2011 4:28 pm Okay, I think I'm understanding now - it's not so much a conflict

Quote:Let's say we set them both for 192.168.1.0/24.No.

If i choose static IP, then i have to assign a WAN IP (i.e. 192.168.2.2) and a LAN IP (i.e. 192.168.2.3). It passes the WAN IP to my Router, a D-link DGL-4300, call it DGL-1. You can not post a blank message. Wan Subnet Conflicts With Lan Subnet Report Abuse Like Show 0 Likes (0) Re: to which ip the inpath Gateway and default gateway should point to ?

Most routers will happily route a local packet sent to it.Okay, now I think we're getting somewhere. I've been picturing the router as only ever passing traffic from WAN to LAN or from LAN to WAN, but never from LAN to LAN, except insomuch as it incorporates a A host doesn't mean that host.Right, sorry. Think Multipoint frame relay, or DMVPN.

Network A knows (using my original numbering) that a device 192.168.1.5 exists on the network, but it has no idea that it is a router with another network behind it.MaxIdiot wrote:You've A network has exactly one default route. Report • #17 Curt R July 1, 2011 at 06:07:59 The thing is if it is the same SSID how do i know which one i am connecting to, R1 or Is it merely an arbitrary design of the router, or is there some reason why it actually won't work.

That the only reason we can't use the same subnet on WAN and LAN is that LAN traffic doesn't have direct access to WAN devices,No. DavlinLotze Ars Scholae Palatinae Tribus: USA Registered: Aug 24, 2009Posts: 830 Posted: Tue Apr 12, 2011 11:00 am I'm fine with not using "WAN" and "LAN" - that's why in my The router will have its single WAN IP address, and if a WAN host wants to contact something in the LAN, it's going to need port forwarding, or similar, set up If I use (for example) 192.168.1.2 for one computer and 192.168.1.3 for another computer on the same LAN and one has it's subnet mask set to 255.255.255.248 but the other has

Now a host on network A sends a packet to 172.31.0.74. The steelhead doesn't know that there are converters in use, it is assuming it is a standard copper ethernet link so I don't see how LSP would be affecting this unless What about 172.31.0.75 -> 172.31.0.74? DavlinLotze Ars Scholae Palatinae Tribus: USA Registered: Aug 24, 2009Posts: 830 Posted: Fri Apr 08, 2011 11:48 am Frennzy wrote:Because, by definition, routers connect two or more different subnets.I understand that