3Com Routing Problem - next-hop address???

[Brat]

Hi,

I have 3c8227C SuperStack II NETBuilde router. I have two active WAN uplinks, one on V.35(A) port and other RS-449(B). I have just one IP subnet (mask 255.255.255.240) and I want to route internet traffic from 6 workstations via uplinka A, and the rest should use B uplink. I can only have one default gateway. Basically, I want inbound traffic from 6 host to be routed via uplink A, and rest to be routed via uplink B. IS it possible on 3com routers? On Nortel and Cisco I can do it very easy nad very quickly.

Thanks,
Brat

 

[topoh]

Hi, Brat. I think you can do it using NAT. In this case, I´m suposing you have 16 IP valid addresses 200.199.60.0\28 (including broadcast and network addresses) and a private network using non-valid IP address range 10.0.0.0\24. Try doing the following, changing these IP adresses to that match in your case.

1. Assign default IP address on port !1 as non-valid IP (Private Network Gateway)

SETDefault !1 -IP Netaddr = 10.0.0.254 255.255.255.0

2. Enable NAT on port 2 (uplink A V.35) of router by entering:

SETDefault !2 -NAT CONTrol = Enable

3. Map non-valid 6 IP addresses (6 workstations desired to route specific traffic) 10.0.0.1-10.0.0.5, 10.0.0.17 to valid addresss 200.199.60.1 on port !2 (Uplink A)

ADD !2 -NAT AddressMap 10.0.0.1-10.0.0.5,10.0.0.17 200.199.60.1 OutBound

7. Enable NAT on port 3 (uplink B RS-449) of router by entering:

SETDefault !3 -NAT CONTrol = Enable

8. Map the rest of non-valid IP address (rest of workstations of your private network) 10.0.0.6-10.0.0.16,10.0.0.18-10.0.0.254 to valid address 200.199.60.2 on port !3 (Uplink B)

ADD !3 -NAT AddressMap 10.0.0.6-10.0.0.16,10.0.0.18-10.0.0.254 200.199.60.2 OutBound

9. Assign the gateway for all workstation of your private network as 10.0.0.254.


You´ll just use 2 valid IP addresses of your IP pool available!


I Hope help you!

Topoh.

 

[Brat]

Hi, topoh

Thanks for info, but easiest way to do this - maybe not so good - is to use SplitLoad routing option, to divide outgoing traffic on two different uplinks.

Thanks again,
Brat

 

[topoh]

Hi, Brat !


How can I setup my router with splitload routing ? Just exec command below ?

setd -ip control=splitload

I have 2 uplinks (Link C - port !6 and Link D - port !7) at a Superstack II Netbuilder SI 532 router, and want to split all load from ethernet (port !1) to 2 uplink (Load Balance).

sorry my english

[]´s,

topoh

 

[topoh]

Brat,

I already did Load Balance with SplitLoad executing Setd -IP control=(Route, SplitLoad), but my router CPU Utilization is reaching 98% (Bad !). Is there any way to track high cpu utilization processes an try to put cpu utilization a little down ? How can we upgrade cpu capacity at Netbuilder router ?

PS: My router is SuperStack II Netbuilder 532

[]´s,

topoh