Temporary Route Configuration
Answer
Scenario
You need to reach a remote subnet that isn't covered by the default route, but you don't want to make any permanent configuration changes.
Task
Check the current routing table to confirm the 10.20.0.0/16 subnet is not present, add a temporary static route for the 10.20.0.0/16 subnet via gateway 192.168.1.1 using interface veth0.
Example
# Before (no route to remote subnet)
10.20.0.0/16 subnet not in routing table
Cannot reach remote network
Need temporary access without permanent changes
# After (temporary route added)
10.20.0.0/16 via 192.168.1.1 dev veth0
Route active and verified
Remote subnet accessible
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