On private IP VPN

Hello

Can someone let me know if I can set up a VPN between a public and a private IP address. I intend to make a static NAT to a private IP address in the router/load balancing program. There will be challenges with this kind of Setup? Pls know me if someone has deployed similar editing.

A simple diagram attached here with for reference.

-JP

Hello

This example configuration can be useful, by establishing a VPN tunnel between a private and public IP through two routers.

http://www.Cisco.com/en/us/Tech/tk583/TK372/technologies_configuration_example09186a0080094ecd.shtml

Please note all messages that are useful.

Tags: Cisco Security

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    After fragmentation success stories: 0
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    Prior fragmentation failures: 0
    Fragmentation failures after: 0
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    PMTUs rcvd: 0
    Protocol of failures: 0
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    The availability of router is 9 hours, 47 minutes

    System to regain the power ROM

    System image file is "flash: c1841-advsecurityk9 - mz.124 - 24.T1.bin".

    This product contains cryptographic features and is under the United States

    States and local laws governing the import, export, transfer and

    use. Delivery of Cisco cryptographic products does not imply

    third party approval to import, export, distribute or use encryption.

    Importers, exporters, distributors and users are responsible for

    compliance with U.S. laws and local countries. By using this product you

    agree to comply with the regulations and laws in force. If you are unable

    to satisfy the United States and local laws, return the product.

    A summary of U.S. laws governing Cisco cryptographic products to:

    http://www.Cisco.com/WWL/export/crypto/tool/stqrg.html

    If you need assistance please contact us by mail at

    [email protected] / * /.

    Cisco 1841 (revision 7.0) with 118784K / 12288K bytes of memory.

    Card processor ID FCZ1217905C

    2 FastEthernet interfaces

    1 module of virtual private network (VPN)

    Configuration of DRAM is 64 bits wide with disabled parity.

    191K bytes of NVRAM memory.

    250880K bytes of ATA CompactFlash (read/write)

    Configuration register is 0 x 3922

    Router #.

    Router #sh crypto multicylindres

    crypto engine name: virtual private network (VPN) Module

    crypto engine type: hardware

    Status: enabled

    Geographical area: 0 on board

    Name of product: edge-VPN

    HW Version: 1.0

    Compression: Yes

    A: Yes

    3 a: Yes

    AES - CBC: Yes (128,192,256)

    AES CNTR: No.

    Maximum length of the buffer: 4096

    Index maximum DH: 0000

    Maximum ITS index: 0000

    Maximum fluidity index: 0300

    The maximum size of the RSA key: 0000

    version of crypto lib: 20.0.0

    engine crypto in the slot: 0

    platform: hardware VPN Accelerator

    version of crypto lib: 20.0.0

    Router #sh cry engine Accelerator stat

    Device: FPGA

    Location: on board: 0

    : Statistics for device encryption since the last clear

    counters 35534 seconds ago

    68607 68607 out packages packages

    49819692 bytes in 50341181 bytes on

    1 paks/s to 1 output paks/s

    11 Kbps in 11 Kbits/sec out

    29298 decrypted packets 39309 encrypted packets

    4074464 bytes before decipher 45745228 encrypted bytes

    2537109 bytes decrypted 47804072 bytes after encrypt

    0 0 packets compressed decompressed packets

    0 bytes before Dang 0 bytes before comp

    0 bytes after Dang 0 bytes after model

    0 packets bypass decompression 0 by-pass compressor packages

    Derivation of 0 bytes 0 bytes decompression work around compressi

    0 packets not unzip 0 uncompressed packages

    0 bytes not decompressed 0 bytes not compressed

    1.0:1 overall compression ratio 1.0:1

    last 5 minutes:

    11 packages into 11 out packets

    0 paks/sec output paks/s 0

    32-bit/s at 28 bits/sec out

    496 bytes decrypted 329 bytes encrypted

    13 decrypted Kbps 8 Kbps encrypted

    1.0:1 overall compression ratio 1.0:1

    FPGA:

    DS: 0x6538DE50 idb:0x6538CD08

    Statistics for virtual private network (VPN) Module:

    68607 68607 out packages packages

    1 paks/s to 1 output paks/s

    11 Kbps in 11 Kbits/sec out

    29298 decrypted packets 39309 encrypted packets

    package overruns: 0 packets output dropped: 0

    tx_hi_drops: 0 fw_failure: 0

    invalid_sa: 0 invalid_flow: 0

    null_ip_error: 0 pad_size_error: 0 out_bound_dh_acc: 0

    esp_auth_fail: 0 ah_auth_failure: 0 crypto_pad_error: 0

    ah_prot_absent: 0 ah_seq_failure: 0 ah_spi_failure: 0

    esp_prot_absent:0 esp_seq_fail: 0 esp_spi_failure: 0

    obound_sa_acc: 0 invalid_sa: 0 out_bound_sa_flow: 0

    invalid_dh: 0 bad_keygroup: 0 out_of_memory: 0

    no_sh_secret: 0 no_skeys: 0 invalid_cmd: 0

    pak_too_big: 0

    tx_lo_queue_size_max 0 cmd_unimplemented: 0

    flow_cfg_mismatch 0 flow_ip_add_mismatch: 0

    unknown_protocol 0 bad_particle_align: 0

    35535 seconds since the last cleaning counters

    Interruptions: Notification = 54892

    Router #.

    vpn module on board can certainly improve VPN performance comparing to pure VPN software, but is not as good as the AIM - VPN module.

    So, this will depend on your vpn traffic load, etc...

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