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I suppose I show my age with this fixed speed/duplex vs auto disagreement. Not a problem, I agree that auto is sometimes the appropriate setting, but usually because of anomalous behavior or convenience, not whether it's right or wrong to set it for infrastructure links (unless GigE then auto...

Ah, I correct myself. I have experienced problems with hard setting duplex. It's when I set it wrong. Full-duplex disables collision detection, which is required for old-school shared-media hubs to function. So the proper setting in that case would be half-duplex (on shared media hubs...

> Under many circumstances, hard setting both sides will still lead to a duplex mismatch. My experience is exactly the opposite. Oh well. --jeff http://linkedin.com/in/JeffLynch

For permanent or semi-permanent connection you *should* always set speed and duplex. Since your bridges are >10mbps and full duplex, set your FastEthernet to 100mbps/full-duplex, unless the installation guide says otherwise. >and if we need to do just that, why do the switches handle this fine...

>...monitor devices and services on both sides of the wireless/3620s. after we switch to wireless from the T1s devices are green (good and running) then red (dead), green, red,... etc. to us that means the network between us is going up and down. This makes sense. >...we don't think the...

Confusion, my bad. I thought you had routers at the main site and the remote site, which would be closer to best practices. Need more info about the main site. Post router config and IP/Mask/gateway for the phone system controller. --jeff http://linkedin.com/in/JeffLynch

You've got a layer 2 and layer 3 issue. You need to consider switching (L2) and routing (L3). Move the PhoneLAN connection from the router's E0 port to the SWITCH I recommeded you insert between the Bridge and router at the remote site. --jeff http://linkedin.com/in/JeffLynch

Have the remote site(s) connect to the main site via IPSEC tunnel on the ADSL side(s) so you'll have an alternate path to the main site besides the wireless bridge. Then you can set the metric lower on the preferred route between sites as Burt points out. I also agree that you don't need...

So you are connecting two DSL modem/routers to two Fastethernet interfaces on your 1811. So are the DSL modem/routers doing PPPoE/DHCP and passing a private address to the 1811 Fastethernets? Or are they in bridge mode so you do are doing PPPoE/DHCP at the 1811? You will want your 1811...

The solution sounds too simple to me.... Let me check the facts: 1) You have wireless bridge between Main and Remote site 2) The wireless LAN segment (key point) carrys both Voice and Data traffic. 3) You need separate LANs at the remote site for VOICE and DATA. 4) The Voice traffic needs to...

You're trying to tunnel layer 2 over a tcp connection. There is one thing that pops into my mind, but it's not cisco. There is a small company in Latvia, called Mikrotik. I've met the guys at several ISP conferences and they are very sharp and their english is quite good. Anyway, they have a...

You're in pretty good shape then. I would try two indepent IPSec tunnels to each of your WAN interfaces facing your two different ISPs from each remote site. Then run GRE tunnels over the IPSec tunnels and then you can OSPF or EIGRP to maintain your routing tables so your remote offices can...

The loopback interface IP address should be assigned on each connected router in the same subnet, and not necessarily /32, the subnet must be assigned the correct mask based on the intended size of the "router management subnet" in loose terms, if you will. This way all dependent routers in this...

The point has been lost. Unless his ISPs say yes to BGP over his connection, AND he gets at least a /24 block, AND he gets an Autonomous System Number, AND unless he can get his other ISP (the one not re-assigning his IP block) to accept his Advertisements, and his ISP who provides the IP block...

Firewalls can often be independently configured and/or enabled per-interface, but we're on the same page with trying a different TCP/IP application than http. --jeff http://linkedin.com/in/JeffLynch

This can get complicated. More info needed. 1) Do you have static IPs on all ISP connections at the main site and all branch offices? 2) Are the tunnels initiated by either end in each of the site to site tunnels or is only one of the endpoints responsible in any of them? 3) Are condiditions...

<quote> Now I'M confused! R1 S1 to R3 S1, R1=DCE and R3=DTE, R1 with clock rate and R3 with none...does this work with ANY cable? R1 S1 to R3 S1, R1=DTE and R3=DCE, clock on R3...does this work with ANY cable? </quote> Good points, Burt. I was partially premature in stating that R1(s1) is good...

Agree on possible MTU issue. But I pushed it down the decison tree because he didn't say a web page partially loads and then hangs. That's the main symptom I look for with blunt MTU issues, ie not tuning for performance but rather basic functionality. Thinking about the http request. Very small...

<self correction> because ISPs route exterior using BPG exclusively (/24, which is way more IPs that you have) </self correction> should be "/24 or larger subnet" --jeff http://linkedin.com/in/JeffLynch

<quote>When I moved the cable from a working link (R1/s0 - R2/s0) on router 1 to (R1 / s1 - R2 / s0)guess what... the Serial 1 interface came up up!!! </quote> STOP! You just proved that R1(s1) is good. Now you turn your attention to R3(s1). You need to be systematic and take good notes. You...