 NetFixerFrom my cold dead handsPremium
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| reply to pacpac
Re: RV042 - giving up - recommendation for a quality dual WAN? said by pacpac:A general question, when having configured the RV042 in LB mode (no Protocol Binding), could content/packets come in both via the WAN 1 and WAN 2 ports when accessing one web site? For example, when typing cnn.com in the browser, could some content come in via WAN 1 and when cnn.com requests info from, let's say, Twitter, could that come in via WAN 2?
It is not only possible, but that is exactly what load balancing does. That is why you usually need to do protocol binding for SSL, VPN, SIP/RTP (and sometimes even SMTP) connections.
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A well-regulated militia, being necessary to the security of a free State, the right of the people to keep and bear arms shall not be infringed.
When governments fear people, there is liberty. When the people fear the government, there is tyranny. |
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| reply to pacpac
Thank you, understand. I am getting closer to solve my problem, and it looks like the RV042 is OK. I believe the reason for the partially loaded pages is because of a) the "stuck" MAC address in one of my cable modems, b) connection drops from my ISP a few times per day and/or c) my trial by connecting the switch directly to the cable modem and 2 MAC addresses from there. I have confirmed that my ISP does not support 2 dynamic IPs per cable modem, the modem and ISP can hand out 2 dynamic IPs, but I will have problems browsing properly since the connection to the 2 IPs is not simultaneous.
Can the RV042 operate OK with a dynamic IP on one WAN port and a static IP on the second WAN port? |
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NetFixerFrom my cold dead handsPremium
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| said by pacpac:Can the RV042 operate OK with a dynamic IP on one WAN port and a static IP on the second WAN port?
I have in the past found that having a dynamic public IP address on one WAN and a static private IP address on the other would not allow my RV082 to do load balancing (but I don't know if it was the public/private mismatch or the static/dynamic mismatch that caused the problem); so that may be an indication that the RV0xx series expects to see the same WAN configuration for each WAN when doing load balancing.
I have successfully used a public dynamic IP address on the primary WAN with a private fixed IP address for the secondary WAN when my RV082 was setup strictly for fail over instead of load balancing.
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A well-regulated militia, being necessary to the security of a free State, the right of the people to keep and bear arms shall not be infringed.
When governments fear people, there is liberty. When the people fear the government, there is tyranny. |
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| reply to pacpac
said by pacpac:A general question, when having configured the RV042 in LB mode (no Protocol Binding), could content/packets come in both via the WAN 1 and WAN 2 ports when accessing one web site?
Possibly. I'd have to reread the manual, but I suspect protocol binding is Cisco's way of saying "go out one interface,
and stick to it like glue," which makes sense as you don't want to introduce asymetric routing and/or out of order
packets.
Keep us posted how it goes in stabilizing the connection.
Regards |
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| reply to pacpac
I can get a continous internet connection for about 1-2 hours when using the RV042. Then the connection drops. Sometimes it drops for 2-5 minutes and comes back, other times I need to restart the RV042 and the cable modems to get the connection back up. It apperars to be the same with both of these configurations:
1) Cable modem 1 and 2 into RV042 WAN ports respectively and the Windows machine, PAP2T, Linksys wireless and Skype phone connected to RV042 LAN ports.
2) Cable modem 1 into RV042 one WAN port, cable modem 2 into the switch, the PAP2T into the switch and RV042 second WAN port into the switch, and the Windows machine, Linksys wireless and Skype phone connected to RV042 LAN ports.
All devices have static IPs, RV042 is in LB mode with DHCP turned off.
One problem seems to have been solved, when Internet connection is present all pages loads quickly and completely.
I am now trying the following:
Cable modem 1 directly to the PAP2T. Cable modem 2 into the switch, then directly to the Windows machine on one switch port and directly to the Skype phone on another switch port.
I am testing this to check the following; a) is the connection to the ISP consistent and b) can the cable modem (and ISP) handle 2 dynamic IPs on one connection without problems.
Will try for a few hours. If I get connection, browsing or streaming problems I will take the switch out and connect the Windows machine directly to the cable modem for some time.
My objective is to get configuration no 2 above to work properly. |
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| reply to pacpac
If the RV042 is still accessible, and lights are out on the cable modems, I'd be inclined to say it's an ISP issue.
If the RV042 is still accessible, the lights are lit for the cable modems, I don't know if you have any access to
the cable modem to check if there's still a signal or not.
Just my 00000010bits
Regards |
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NetFixerFrom my cold dead handsPremium
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1 edit | said by HELLFIRE:If the RV042 is still accessible, and lights are out on the cable modems, I'd be inclined to say it's an ISP issue.
If the RV042 is still accessible, the lights are lit for the cable modems, I don't know if you have any access to
the cable modem to check if there's still a signal or not.
Just my 00000010bits
Regards
The problem is that both of the cable modems are going to have the same 192.168.100.1 IP address, so that is going to complicate the dual WAN RV042 knowing which WAN to use to access which modem. When I used an RV082 with two DSL modems, I was able to setup each modem's LAN on a different subnet and put static routes in the RV082 to point to the appropriate WAN interface in order to be able to check the stats and status of each modem. The option to change a cable modem's LAN IP address and subnet is usually not available.
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A well-regulated militia, being necessary to the security of a free State, the right of the people to keep and bear arms shall not be infringed.
When governments fear people, there is liberty. When the people fear the government, there is tyranny. |
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 kontosxyzzy
join:2001-10-04
West Henrietta, NY | reply to pacpac
That sounds like an issue with the MTU being set too high somewhere.
edit: ugh. maybe should have read rest of thread before responding  |
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| reply to pacpac
Netfixer, I think you might be right on. I tried directly (and through the switch) to each modem for a few hours today, all is OK. I tried the RV042 one one WAN port with one cable modem, all is well. Then the other WAN port only with one cable modem, all is well. Then, the 2 cable modem in the repsective WAN port, set the RV042 in LB mode. Guess what, connection dropped after 5-10 minutes. Yes, both cable modems are on 192.168.100.1.
Technically, would the solution be (except for changing the 192.168.100.1 IP on one modem) to set one single WAN router between cable modem 1 and the RV042 and a second single WAN router between cable modem 2 and the RV042, then do a static IP configuration on each WAN on the RV042? If so, shall I set 192.168.1.xxx and subnet 255.255.255.0 and gateway to the single WAN router I set to, e.g. 192.168.1.101 and 192.168.1.102? |
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NetFixerFrom my cold dead handsPremium
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| said by pacpac:Netfixer, I think you might be right on. I tried directly (and through the switch) to each modem for a few hours today, all is OK. I tried the RV042 one one WAN port with one cable modem, all is well. Then the other WAN port only with one cable modem, all is well. Then, the 2 cable modem in the repsective WAN port, set the RV042 in LB mode. Guess what, connection dropped after 5-10 minutes. Yes, both cable modems are on 192.168.100.1.
Technically, would the solution be (except for changing the 192.168.100.1 IP on one modem) to set one single WAN router between cable modem 1 and the RV042 and a second single WAN router between cable modem 2 and the RV042, then do a static IP configuration on each WAN on the RV042? If so, shall I set 192.168.1.xxx and subnet 255.255.255.0 and gateway to the single WAN router I set to, e.g. 192.168.1.101 and 192.168.1.102?
Both cable modems having the same 192.168.100.1 IP address (in theory) should not have an effect on your on-line operation, since that IP address should not be in the path for normal operation. The only time that should be a problem is if you are trying to look at the modem stats from behind your RV042. However, having said that, most cable modems do use that private IP address, and even hand out DHCP addresses in that private subnet during the initial boot process before the connection to your ISP is established. It is possible that the RV042 is somehow remembering that subnet with its conflicting IP addresses even after it gets new public IP address DHCP assignments once the modems go on-line (but that should not be happening).
You may also be getting zapped by both of your modems providing public IP addresses in the same subnet and using the same ISP gateway. When I was using my RV082 with two DSL lines, I originally setup my DSL routers into bridge mode, and setup my RV082 to do the PPPoE authentication and get the public IP address(es) from my ISP. That worked great when my two DSL circuits were on different DSLAMs and connected to different ATM concentrators. Then, my ISP decided to cut back on their infrastructure and they routed both of my circuits into the same ATM concentrator. That change caused my two connections to get the same gateway, and that totally hosed up the RV082's load balancing. I didn't get connection drops, but I did get random hangs, lock ups, and just generally poor performance. I had to put my DSL routers into router mode (using different LAN subnets) and deal with the cascaded NAT in order to restore normal operation again (it wasn't long after that until I changed to a different ISP).
Your question about inserting another router between your modems and the RV042 would be the equivalent if doing that. However, if you are going to do it, put the LAN interfaces of the secondary routers on totally different subnets, don't assign them different IP addresses on the same subnet because that would cause routing problems for the RV042. For example, give the router in front of WAN1 the LAN IP address 192.168.101.1, and the router in front of WAN2 the LAN IP address of 192.168.102.1. If you did that, then you would assign the RV042 WAN1 the IP address 192.168.101.2 with its gateway set to 192.168.101.1, and the RV042 WAN2 would get the IP address 192.168.102.2 with a gateway of 192.168.102.1. This sounds kind of kludgy, but it might be what you have to do to get your load balancing to work.
And speaking of the need for load balancing, are you doing this because your ISP can't supply you with a single circuit with the throughput you need? Since fail over is not going to probably work anyway just due to the common infrastructure, why are you trying to load balance two cable connections from the same ISP? I used to do it for both reasons; I could not get a single connection with enough bandwidth, and (before my ISP stabbed me in the back) I had fail over protection because my two DSL circuits used totally different infrastructure.
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A well-regulated militia, being necessary to the security of a free State, the right of the people to keep and bear arms shall not be infringed.
When governments fear people, there is liberty. When the people fear the government, there is tyranny. |
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| Good explanation. I will try by setting the 2 single WANs in front of the RV042. What subnet mask would I use? 255.255.255.0? The reason for the Load Balancing is a) the ISP cannot supply higher than 4/1 and b) need Protocol Binding for a handful of sites. |
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NetFixerFrom my cold dead handsPremium
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| said by pacpac:Good explanation. I will try by setting the 2 single WANs in front of the RV042. What subnet mask would I use? 255.255.255.0? The reason for the Load Balancing is a) the ISP cannot supply higher than 4/1 and b) need Protocol Binding for a handful of sites.
Yes, a 255.255.255.0 netmask would work with no problems.
Of course, Protocol Binding is only needed if you are using load balancing. If your router only has a single WAN, there is nothing else to bind to.
Good luck with this next step.
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A well-regulated militia, being necessary to the security of a free State, the right of the people to keep and bear arms shall not be infringed.
When governments fear people, there is liberty. When the people fear the government, there is tyranny. |
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| reply to pacpac
said by pacpac:Yes, both cable modems are on 192.168.100.1.
*slaps forehead*
Probably should've asked this question right at the beginning, but if you were double NAT'ing your connection here ie. the cable modem functions as BOTH a cable modem, and a (wireless) gateway, that's a generally a source of more than one problems
with connectivity.
Regards |
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NetFixerFrom my cold dead handsPremium
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| said by HELLFIRE:said by pacpac:Yes, both cable modems are on 192.168.100.1.
*slaps forehead* Probably should've asked this question right at the beginning, but if you were double NAT'ing your connection here ie. the cable modem functions as BOTH a cable modem, and a (wireless) gateway, that's a generally a source of more than one problems with connectivity. Regards The OP has Motorola SB5100 and SB5101 standard cable modems, not gateways. This was revealed in one of the other related threads (there are several): »How to find ISP modems' gateway IP?
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A well-regulated militia, being necessary to the security of a free State, the right of the people to keep and bear arms shall not be infringed.
When governments fear people, there is liberty. When the people fear the government, there is tyranny. |
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1 edit | Thanks, looks like I am getting closer to the solution and proper operation of the RV042. I have configured the following (of some reason I could not set 192.168.101.1 in one of the routers, D-Link, so I used the default, 192.168.0.1). It has been working fine for a couple of hours now.
Cable modem 1 connected to switch
Switch connected to D-Link and PAP2T, dynamic IPs handed out
D-Link connected to RV042 WAN 1 port
Cable modem 2 connected to Linksys
Linksys connected to RV042 WAN 2 port, dynamic IP handed out
Windows machine (MTU 1500) connected to RV042 LAN 1 port
SkypePhone connected to RV042 LAN 2 port
Linksys wireless connected to RV042 LAN 4 port
Second Windows machine (MTU 1500) connected to Linksys wireless
General configuration:
DNS 208.67.222.222/208.67.220.220 on all devices
Subnet mask 255.255.255.0 on all devices
Static LAN IPs on all devices inside LAN
Dynamic IP configuration on Internet facing
RV042 configuration:
LAN IP 192.168.1.1
WAN 1 static IP 192.168.0.2
WAN 1 Gateway 192.168.0.1
WAN 2 static IP 192.168.2.2
WAN 2 Gateway 192.168.2.1
MTU manual 1500 on WAN 1 and WAN 2
DHCP off
Load Balancing with 5 IPs bound to one WAN port
Firewall enabled (SPI disabled)
D-Link configuration - feeding RV042 WAN 1 port:
WAN IP dynamic
LAN IP 192.168.0.1
MTU manual 1500
Linksys configuration - feeding RV042 WAN 2 port:
WAN IP dynamic
LAN IP 192.168.2.1
MTU manual 1500
From a technocal perspective, would this be a correct configuration? Do you see anyting wrong? I intend to run this for the next hours and monitor performance. |
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| reply to pacpac
Are both of your WANs using the same default gateway? I don't know if the RV042 can cope with this. Many multi-WAN routers cannot. Try inserting a NAT device between the modem and one of the WANs. Reboot the modem and try again.
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| reply to pacpac
said by pacpac:From a technocal perspective, would this be a correct configuration? Do you see anyting wrong? I intend to run this for the next hours and monitor performance.
Everything looks good to me, and of course, the real test is "does it work?".
The only thing I see that might cause you problems if you are planning to use a VPN, is that the IP subnets 192.168.0/24, 192.168.1/24 and 192.168.2/24 are so commonly used, and that can cause problems with VPN sessions because the local and remote IP subnets usually need to be different for most VPN implementations.
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A well-regulated militia, being necessary to the security of a free State, the right of the people to keep and bear arms shall not be infringed.
When governments fear people, there is liberty. When the people fear the government, there is tyranny. |
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| Hi, the set-up is working very well so far. Very much like what I would expect by a dual WAN router. Will conclude during this weekend, and will let you know. I am not using VPN, so no issue for me.
I am speaking with my ISP and am thinking to ask them to set up 2 static IPs, one for each cable modem and one additional dynamic IP for one of the two modems. The cable modems must have different LAN IPs, e.g. one 192.168.100.1 and the second 192.168.101.1, and there should be different gateways on the cable modems. The 2 static IPs to be configured in RV042 WAN ports, one cable modem directly to the RV042 and the second via the switch to the RV042. Then I connect the PAP2T to the switch which uses the dynamic IP. I guess this should also work OK? |
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NetFixerFrom my cold dead handsPremium
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| said by pacpac:I am speaking with my ISP and am thinking to ask them to set up 2 static IPs, one for each cable modem and one additional dynamic IP for one of the two modems. The cable modems must have different LAN IPs, e.g. one 192.168.100.1 and the second 192.168.101.1, and there should be different gateways on the cable modems. The 2 static IPs to be configured in RV042 WAN ports, one cable modem directly to the RV042 and the second via the switch to the RV042. Then I connect the PAP2T to the switch which uses the dynamic IP. I guess this should also work OK?
I don't really think that the off-line LAN IP address being the same on both cable modems was your problem because the RV042 should not even see that IP address once the cable modems sync with your ISP and then transfer the public IP address(es) to the RV042's WAN interface(s). It is more likely that your problem was caused by the public IP addresses being on the same subnet for the ISP, and also that they shared the same gateway.
If you can get your ISP to assign static public IP addresses that are on different subnets and use different gateways to each connection, that might enable you to eliminate the need for the additional NAT routers between the modems and the RV042. Also, how your ISP goes about assigning static IP addresses may play a big role in how you connect everything. My current ISP (Comcast), will only assign static IP addresses in CIDR blocks (/30, /29, etc), and they will only do it if you are using a cable gateway that they supply. If your ISP does it the same way, then you may need to replace each of your current modems with an ISP supplied modem/router gateway box. That would eliminate the need for cascaded NAT, and having separate CIDR static subnets should fix the common subnet/gateway problem.
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A well-regulated militia, being necessary to the security of a free State, the right of the people to keep and bear arms shall not be infringed.
When governments fear people, there is liberty. When the people fear the government, there is tyranny. |
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| I am confused,.... The cable modems have a different subnet mask, one is 255.255.254.0 and the other 255.255.252.0. The gateways are completely different. The only thing in common I can see is that both has 192.168.100.1 LAN IPs. |
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