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ISP link fail Over

deltaline-IT

Hi ,

 

We have two Internet connection MAIN and BACKUP from the same ISP they are terminated on different routers with same Public IP details.

 

Example :

 

MAIN LINK :

WAN IP ISP Side: 1.1.1.1/28

WAN IP customer Side:1.1.1.2/28

WAN Routing Protocol:  BGP

WAN BGP AS Number: 112233

 

 

BACKUP LINK :

WAN IP ISP Side: 1.1.1.1/28

WAN IP customer Side:1.1.1.2/28

WAN Routing Protocol:  BGP

WAN BGP AS Number: 113344

 

 

As we see here both MAIN and BACKUP Link has same IP Scheme , now we need between Main and Backup link.

 

Any suggestion we can achieve from SOPHOS UTM 9 version?



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  • 0

    I have a client that runs BGP, but your situation doesn't match his.  It sounds like your ISP is doing all of the BGP and you only need to connect the two ISP routers to a switch in front of your UTM.  If I understand the situation correctly, you shouldn't need to change anything in the UTM.

    Cheers - Bob

  • 0 in reply to BAlfson

    Thanks Balfson for your response..

    let me explain you in  details 

    Route A :  Main Line                                                               Route B : Backup Line

    Public IP : 1.1.1.1/28                                                               Public IP : 2.2.2.1/28

    gateway : 1.1.1.2                                                                     gateway : 2.2.2.2

    additional IP: 1.2.3.4/28                                                         additional IP: 1.2.3.4/28 

    additional IP: 1.2.3.5/28                                                         additional IP: 1.2.3.4/28

    additional IP: 1.2.3.6/28                                                         additional IP: 1.2.3.4/28

    apart from this we have DSL Internet for browsing only ... the Main Line is only for certain application(SMPT , orcale from lan to wan) and there is no default gateway on this interface , traffic flows through PBR .. backup line we need to use as fail-over. 

  • 0 in reply to deltaline-IT

    That's very different from your original post.  Shouldn't the Additional IPs on the Backup Line be .4, .5 & .6 as on the Main Line?  Do you have a privately owned public subnet that should re reached via these routers?

    Cheers - Bob