enterprise-router/umn/source/service_overview/notes_and_constraints.rst

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:original_name: er_01_0006.html
.. _er_01_0006:
Notes and Constraints
=====================
Specifications
--------------
:ref:`Table 1 <er_01_0006__table591864733813>` lists the specifications of the enterprise router.
.. _er_01_0006__table591864733813:
.. table:: **Table 1** Enterprise router specifications
+--------------------------------------------------------------------------+------------------------+---------------------------+
| Item | Default Specifications | Adjustable |
+==========================================================================+========================+===========================+
| Maximum number of enterprise routers that can be created by each account | 1 | Contact customer service. |
+--------------------------------------------------------------------------+------------------------+---------------------------+
| Maximum forwarding capability supported by each enterprise router | 100 Gbit/s | Contact customer service. |
+--------------------------------------------------------------------------+------------------------+---------------------------+
Notes and Constraints
---------------------
- Enterprise routers cannot be used together with virtual IP addresses of VPCs. If virtual IP addresses are used, contact customer service.
- Traffic cannot be forwarded from a VPC to its attached enterprise router if you set the destination of a route in the VPC route table to 0.0.0.0/0 and:
- An ECS in the VPC has an EIP bound.
- The VPC is being used by ELB, NAT Gateway, or VPC Endpoint.
To solve this problem, refer to :ref:`Why Traffic Can't Be Forwarded from a VPC with a Route Destination of 0.0.0.0/0 to Its Enterprise Router? <er_01_0121>`