WAN Edge routers are configured manually to use UDP port offset to use nondefault offset values when IPsec tunnels are created. What is the offset range?

The correct answer is C. 0-19. The configurable UDP port offset range for IPsec tunnels on Cisco WAN Edge routers is 0-19.

WAN Edge Router Deployment

Question

WAN Edge routers are configured manually to use UDP port offset to use nondefault offset values when IPsec tunnels are created. What is the offset range?

Exhibit

Options

A1-19
B0-18
C0-19
D1-18

How the community answered

(51 responses)

A
2% (1)
B
4% (2)
C
94% (48)

Why each option

The configurable UDP port offset range for IPsec tunnels on Cisco WAN Edge routers is 0-19.

A1-19

The range 1-19 excludes the valid offset of 0.

B0-18

The range 0-18 excludes the valid offset of 19.

C0-19Correct

The UDP port offset for IPsec tunnels on Cisco WAN Edge routers can be manually configured within the range of 0 to 19 to allow for non-default port values and facilitate NAT traversal.

D1-18

The range 1-18 excludes both 0 and 19, which are valid offset values.

Concept tested: WAN Edge IPsec tunnel UDP port offset range

Source: https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/sdwan-xe-gs-book/sdwan-interface-configuration.html

Topics

#SD-WAN#WAN Edge configuration#IPsec#UDP port offset

Community Discussion

No community discussion yet for this question.

Full 300-415 Practice