Using Juniper EX3300 as a router
- by Richard Whitman
So I have a Juniper EX3300 Switch. One of its uplink ports (ge-0/1/0) is connected to my ISP's router. ISP router's port address is xx.xx.xx.109. My switch's IP address is xx.xx.xx.110.
From the switch, I can ping to xx.xx.xx.109 and any other IP in the world. I mean its connected to the Internet.
I connected the port eth0 of a computer (running Ubuntu) to the port ge-0/0/0 of the switch (which in the same VLAN as ge-0/1/0). I configured the port eth0 as follows:
iface eth0 inet static
address yy.yy.yy.208
netmask 255.255.255.240
gateway xx.xx.xx.110
yy.yy.yy.208 is assigned to me by the ISP. So, now I can ping to the switch (xx.xx.xx.110) from this computer. But I can not ping to either xx.xx.xx.109 (ISP router) or any other IP.
I want this computer to be connected to the Internet. What am I doing wrong?
Here are some of the configurations on my switch:
interfaces {
ge-0/0/0 {
unit 0 {
family ethernet-switching;
}
}
.
.
.
ge-0/1/0 {
ether-options {
no-auto-negotiation;
link-mode full-duplex;
speed {
1g;
}
}
unit 0 {
family ethernet-switching {
port-mode access;
}
}
}
.
.
.
vlan {
unit 0 {
family inet {
address 10.0.1.1/24;
}
}
unit 1 {
family inet {
address xx.xx.xx.110/30;
}
}
}
}
.
.
.
routing-options {
static {
route 0.0.0.0/0 {
next-hop xx.xx.xx.109;
retain;
}
}
}
vlans {
Cogent {
vlan-id 3;
interface {
ge-0/1/0.0;
ge-0/0/0.0;
ge-0/0/1.0;
ge-0/0/2.0;
ge-0/0/3.0;
}
l3-interface vlan.1;
}
TFLan {
vlan-id 2;
interface {
ge-0/0/5.0;
ge-0/0/6.0;
ge-0/0/7.0;
ge-0/0/8.0;
ge-0/0/9.0;
ge-0/0/10.0;
ge-0/0/11.0;
ge-0/0/12.0;
ge-0/0/13.0;
ge-0/0/14.0;
ge-0/0/15.0;
ge-0/0/16.0;
ge-0/0/17.0;
ge-0/0/18.0;
ge-0/0/19.0;
ge-0/0/20.0;
ge-0/0/21.0;
ge-0/0/22.0;
ge-0/0/23.0;
ge-0/0/4.0;
}
l3-interface vlan.0;
}
}
