Important note about SSL VPN compatibility for 20.0 MR1 with EoL SFOS versions and UTM9 OS. Learn more in the release notes.

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SNAT over ipsec not working XGS2100

I am referring this post with similar issue

 DNS request to DNS over Site2Site VPN 

I have below setup

XG310 -- branch office 

XG430 -HA -- Head office

Now I got

XGS2100 - 2nd branch office ( Gateway local ip: 172.16.1.100 )

XGS2100 - 3rd branch office

with XG310 I can reach Head office Active Directory with SNAT, but with XGS2100 I can't reach strange issue, but from Head office I can reach XGS2100

( was implemented based on article : https://support.sophos.com/support/s/article/KB-000035830?language=en_US ) 2 years before on XG310, same in XGS2100 not working )

console> show advanced-firewall
Strict Policy : on
FtpBounce Prevention : control
Tcp Conn. Establishment Idle Timeout : 10800
UDP Timeout : 30
UDP Timeout Stream : 60
Fragmented Traffic Policy : allow
Midstream Connection Pickup : off
TCP Seq Checking : on
TCP Window Scaling : on
TCP Appropriate Byte Count : off
TCP Selective Acknowledgements : on
TCP Forward RTO-Recovery[F-RTO] : off
TCP TIMESTAMPS : off
Strict ICMP Tracking : off
ICMP Error Message : allow
Caching for route lookups : on
IPv6 Unknown Extension Header : deny
IPv6 Ready Logo Compliance : off
WAN access control for web admin console : on


Bypass Stateful Firewall
------------------------
Source Genmask Destination Genmask


NAT policy for system originated traffic
---------------------
Destination Network Destination Netmask Interface SNAT IP
192.168.1.33 255.255.255.255 172.16.1.100
192.168.1.66 255.255.255.255 172.16.1.100
192.168.1.77 255.255.255.255 172.16.1.100


### from branch office 2nd

Sophos Firmware Version: SFOS 20.0.0 GA-Build222
Model: XGS2100
Hostname: removed

console> ping 192.168.1.33
PING 192.168.1.33 (192.168.1.33): 56 data bytes
ping: sendto: Operation not permitted
console>

console> system ipsec_route show
tunnelname host/network netmask
HO 192.168.1.0 255.255.255.0
HO_Backup 192.168.1.0 255.255.255.0

console> system route_precedence show
Routing Precedence:
1. SD-WAN policy routes
2. VPN routes
3. Static routes



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Parents
  • More updates on license. Its already visible in licensing portal here on device even after synchronise base Firewall showing  "Not Subscribed"

    Base Firewall
    Stateful Firewall, VPN, Wireless
    Not subscribed Dec 31, 2999
    Network Protection
    IPS, Sophos X-Ops, SD-RED Device Management
    Evaluating Mar 13, 2029
    Web Protection
    Web Security and Control, Application Control, Web Malware Protection
    Evaluating Mar 13, 2029
    Zero-Day Protection
    Machine Learning, Sandboxing File Analysis, Threat Intelligence
    Evaluating Mar 13, 2029
    Central Orchestration
    SD-WAN VPN Orchestration, CFR Advanced
    Evaluating Mar 13, 2029
    Enhanced Support
    Enhanced Support
    Evaluating Mar 13, 2029
  • Hi Akshay Hegde 

    Please contact Sophos Customer Care with Sophos Support to fix the issue with the license.

    Check  Sophos Firewall: Impact of expired license  

    Thanks and Regards 

    "Sophos Partner: Networkkings Pvt Ltd".

    If a post solves your question please use the 'Verify Answer' button.

  • Yes raised case already.  Its not expired we just bought new device recently and its already showing in Sophos cloud with description perpetual

    Case
    07264485
  • When is your start date of the new Appliance? Currently the appliances (Base License) can have a future start date, which is shown in the license Schedule. 

    Only Customer care can address this right now. 

    __________________________________________________________________________________________________________________

  • Scheduled date is 14/03/2024, but this is very strange I spent nearly 24 hours to know this root cause... There is no alert or notification on admin interface regarding license requirements for site to site vpn. I requested for early activation so for nothing positive.

    Which is recommended interms of best performance.

    Policy based site to site vpn ? Or Route based ?

    Any benchmarks?

  • Generally speaking this situation will be resolved in the future. Base licensing will be applied on delivery and not on subscription start date, which do not open this kind of problem. 

    About the second question, both perform on a high level the same but Route based VPN generally speaking is better to setup and maintaine on the long run. 

    __________________________________________________________________________________________________________________

  • Sophos team resolved this licensing issue my branch office link is up now.

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