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Cisco Integrated Services Routers Generation 2 (ISR G2) and CGR routers with integrated 4G LTE cards are supported (V or VZ SKUs, 1900, 2900, 3900, and CGR2010 Series with LTE GRWIC). Cisco 819 and 899 ISRs with embedded LTE are supported. Cisco ISR 4Ks (4321, 4331, 4351, 4431, 4451) with LTE NIM are supported.
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It is not recommended to configure secondary IP addresses on the interfaces that are registered by the mobile router unless it is intended by design. In Cisco IOS Software a secondary IP address is listed first under the interface configuration, and its subnet will be the only one that is inserted into the NEMO prefix list from that interface.