3com 4500 swich routing....


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Hi...

i have a problem... :)

my poblem is my network...

i have a 3com 4500 series swich, fiber-optic connetcion and my network.....

i need to 3com swich to from vlans.

vlan0001 ----> vlan 192.168.0.16 (default)

the member ports 1/0/1 to 1/0/52

fiber-optic number port = 1/0/49

my network number port = 1/0/1 to 1/0/48

i need to vlan0002 but i am not knowing doing.

fiber-optic ip adres from isp = 85.xxx.xxx.141

fiber-optic ip adres from my network = 85.xxx.xxx.142

fiber-optic ip subnet =255.255.255.252

i need to my network routing fiber-optic ip adres

how do i do??

can you help we.....

thank you....

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And what device is going to do your NAT from your public IP 85.. to your private.. I was not aware the 3com 4500 "switch" supported NAT.

Intelligent and secure Voice-Ready edge connectivity

The 3Com? Switch 4500 family of managed, stackable/clusterable 10/100 and 10/100/1000 Ethernet switches provides secure, flexibleLAN connectivity> and advanced voice-optimized features such as Power over Ethernet (PoE) and auto-voice VLAN and QoS. Gigabit models also offer optional 10-Gigabit uplinks via local connection modules or XFP transceivers.

Just because a device will do routing/vlans, does not mean it supports NAT.. Which sure looks like what you need since you mention those private addresses, and since your on 30bit mask.. there are only 2 hosts on that segment.. Yours your and your ISPs, so you going to have to NAT to allow more devices to use that internet connection.

That is not a border type device. Its a lan switch -- If you going to connect your network to the Public net you need a router.

Maybe there is a Network Address Translation module for that switch -- but I was not aware of it. And a quick breeze through the manual makes no mention of being able to do NAT that I saw.

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  • 1 year later...

hi, i'm trying to broadband a internet connection through my 3com 4500 switch but not reaching.

situation: internet adsl router, my computer nic card must have ip 200.161.131.72 and gateway 200.161.131.65 for internet connection.

can i plug the internet router directly to 3com switch to broadband connection ?

i've tried this, put 200.161.131.72 for switch ip address; 200.161.131.65 and my internal lan 200.161.131.0 in the switch static routing table and nothing happens

what would be the appropriate configuration for this situation ?

thanks

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Well you would not put your nic IP on the switch, that is for damn sure ;) Just use the thing as a dumb switch and you should work fine....

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