When VLANs are connected together,
several technical issues will arise. The following are some of the
most common issues and solutions that arise when trying to route
between VLANs. The issues and solutions are as follows:
| PROBLEM |
RESOLUTION |
| Isolated
collision domains |
Route
Processors |
| Need of
end-user devices to send nonlocal packets |
Default
routes |
| Supporting
multiple VLAN traffic across VLAN boundaries |
Inter-Switch
Link (ISL) |
 |
 |
Lab
Activity |
| |
In
this lab activity, you will learn how to
configure an external router to route Inter-VLAN
traffic (Router-on-a-Stick). |
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