Mesh VPN topology – Branch Office 2

Last Updated : Nov 06, 2012 |

Traffic direction

ACL parameter

ACL value

Description

Ingress

IKE from Main Office IP to Branch IP

Permit

-

Ingress

ESP from Main Office IP to Branch IP

Permit

-

Ingress

IKE from First Branch IP to Branch IP

Permit

-

Ingress

ESP from First Branch IP to Branch IP

Permit

-

Ingress

ICMP from any IP address to local tunnel endpoint

Permit

This enables the PMTUD application to work

Ingress

All allowed services from any IP address to any local subnet

Permit

Due to the definition of the VPN Policy, this will be allowed only if traffic comes over ESP

Ingress

Default

Deny

-

Egress

IKE from Branch IP to Main Office IP

Permit

-

Egress

ESP from Branch IP to Main Office IP

Permit

-

Egress

IKE from Branch IP to First Branch IP

Permit

This enables the PMTUD application to work

Egress

ESP from Branch IP to First Branch IP

Permit

This traffic is tunnelled using VPN

Egress

ICMP from local tunnel endpoint to any IP address

Permit

This enables the PMTUD application to work

Egress

All allowed services from any local subnet to any IP address

Permit

This traffic is tunnelled using VPN

Egress

Default

Deny

-