Web Gateway 7.1.5 Product Guide - McAfee

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3 Proxies and caching Network modes Transparent Bridge settings Settings for the appliance when running in transparent bridge mode Port Redirects — List of ports that requests sent by users are redirected to The following table describes the list entries. For information on maintaining a list of this type, see Inline lists. Table 3-6 Port Redirects list Option Definition Protocol name Name of the protocol used for data packets coming in when a user sends a request Original destination ports Ports that redirected data packets were originally sent to Destination proxy port Port that data packets sent to the above ports originally are redirected to Comment Plain-text comment on the port Director priority — Priority (ranging from 0 to 99) an appliance takes in directing data packets The highest value prevails. 0 means an appliance never directs data packets, but only filters them. The value for this priority is set on a slider scale. Management IP — Source IP address of the appliance that directs data packets when sending heartbeat messages to other appliances IP spoofing (HTTP, HTTPS) — When selected, the appliance keeps the client IP address that is contained in a client request as the source address and uses it in communication with the requested web server under various protocols The appliance does not verify whether this address matches the host name of the request. IP spoofing (FTP) — When selected, the appliance communicates with a web server under the FTP protocol in the same way as under the HTTP or HTTPS protocol to perform IP spoofing Note: For active FTP, this option must be enabled. 46 McAfee Web Gateway 7.1.5 Product Guide
Proxies and caching Network modes 3 Sample configuration – Director and scanning nodes in transparent bridge mode This section describes a procedure for setting up two appliances in transparent bridge mode. One of them is configured as a director node that directs data packets, the other as a scanning node that only filters data packets, but does not direct them. Set up a director node To configure an appliance as a director node in transparent bridge mode, you need to enable this mode and configure at least one network interface for the transparent bridge functions. The director role is configured by giving the node an appropriate priority value. Complete the following procedure to set up a director node: 1 Go to Configuration | Appliance. 2 On the appliances tree, go to the appliance you want to set up as a director node and select Network. 3 Select a still unused network interface of the appliance to use it as an interface of the transparent bridge. However, do not enable it yet. 4 On the Advanced tab, select Bridge enabled for this interface. 5 In the Name field, type ibr0 as the name of the interface. 6 On the IPv4 tab, under IP Settings, select Disable IPv4. 7 Click Save Changes. You are logged out and logged on to the appliance again. 8 Go to Configuration | Appliances and select Network again. An additional network interface named ibr0 is now available. Select this interface. 9 On the IPv4 tab, configure an IP address, a subnet mask, and a default route for ibr0. Then select the checkbox next to ibr0 to enable this interface. 10 Select the interface that is currently used to access the appliance to assign it to ibr0. 11 On the Advanced tab, select Bridge enabled. 12 In the Name field, type ibr0 as the name of the interface. 13 On the IPv4 tab, under IP Settings, select Disable IPv4. 14 Enable the network interface you assigned to ibr0 in step 3. 15 Select Central Management. 16 In the Central Management Settings section, add the IP address you configured for ibr0 to the list provided under IP address for Central Management communication. 17 Select Proxies (HTTP(S), FTP, ICAP, and IM). 18 Under Network Setup, select Transparent Bridge. Note: After selecting this mode, specific Transparent Bridge settings appear below the Network Setup settings. 19 Set Director priority to a value > 0. 20 Configure proxy ports and port redirects for HTTP and FTP as needed. 21 Configure also IP spoofing as needed. 22 In the Management IP field, type the IP address you configured for ibr0. 23 Click Save Changes. If you are going to configure another appliance as a director node, be sure to configure the same proxy ports and port redirects as for the initial director node and to add the port redirects in the same order as for that node. McAfee Web Gateway 7.1.5 Product Guide 47
Page 1 and 2: Product Guide McAfee ® version 7.1
Page 3 and 4: Contents Preface 9 About this guide
Page 5 and 6: Contents Standard authentication .
Page 7 and 8: Contents Create an error handler .
Page 9 and 10: Preface About this guide This Produ
Page 11 and 12: Table i-2 Acronyms (continued) Acro
Page 13 and 14: 1 Introduction Contents Comprehensi
Page 15 and 16: Deployment of the McAfee Web Gatewa
Page 17 and 18: Operating system Introduction Filte
Page 19 and 20: Introduction Chapters of this guide
Page 21 and 22: 2 Setup and logon Contents Setting
Page 23 and 24: Setup and logon Setting up the McAf
Page 25 and 26: Installing the appliance software S
Page 27 and 28: 2 Review the summary that is displa
Page 29 and 30: Import a license Setup and logon Lo
Page 31 and 32: Main elements of the user interface
Page 33 and 34: Setting up system management tools
Page 35 and 36: Setup and logon Setting up system m
Page 37 and 38: 3 Proxies and caching Contents Inte
Page 39 and 40: Explicit proxy mode Proxies and cac
Page 41 and 42: Table 3-1 WCCP Services list (conti
Page 43 and 44: Proxies and caching Network modes 3
Page 45: Transparent bridge mode Proxies and
Page 49 and 50: Transparent router mode Proxies and
Page 51 and 52: Proxies and caching Network modes 3
Page 53 and 54: Common proxy settings Proxies and c
Page 55 and 56: Proxies and caching Common proxy se
Page 61 and 62: 8 Make sure the following is config
Page 63 and 64: Proxies and caching Reverse HTTPS p
Page 71 and 72: Proxies and caching Providing proxy
Page 73 and 74: Preventing data leaks Proxies and c
Page 75 and 76: Web caching Proxies and caching Web
Page 77 and 78: Bypass lists for web caching Proxie
Page 79 and 80: Verify the enabling of the web cach
Page 81 and 82: 4 Rules and rule sets Contents Filt
Page 83 and 84: Rules and rule sets Filtering contr
Page 85 and 86: Modules for delivering filtering in
Page 87 and 88: Rules on the user interface On the
Page 89 and 90: Property of a URL Property — URL.
Page 91 and 92: About rule sets Rules and rule sets
Page 93 and 94: Rules and rule sets About rule sets
Page 95 and 96: Table 4-4 Rule set library Rule set
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The Rule Sets toolbar provides the
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Add name, comment, and enabling Com
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Add as many parameters as needed. A
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3 Select Event. The Add Event windo
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Adding the action 9 Select Action.
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Rules and rule sets Rule configurat
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Add a new rule set You can also cre
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List maintenance Rules and rule set
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Add a list Complete the following p
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Action and engine settings Rules an
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Access restrictions Rules and rule
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5 Filtering users Authentication an
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Authentication and access managemen
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Module for authenticating users Aut
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LDAP Settings specifying the LDAP m
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Novell eDirectory Settings specifyi
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Kerberos Settings specifying the Ke
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Table 5-8 Certificate Authorities l
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Administrator accounts Authenticati
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6 Web filtering Contents Filtering
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Virus and malware filtering Web fil
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Web filtering Virus and malware fil
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Whitelists for virus and malware fi
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Module for virus and malware filter
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URL filtering Web filtering URL fil
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Web filtering URL filtering 6 The B
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Modify a filtering rule to block un
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Web filtering URL filtering 6 Add a
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Module for URL filtering Web filter
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Web filtering URL filtering 6 Advan
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Different versions of URL category
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Web filtering Media type filtering
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Web filtering Media type filtering
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Lists for media type filtering Web
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HTML filtering Web filtering HTML f
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Web filtering HTML filtering 6 Embe
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Break; User-Defined.removeOneScript
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Media Type String Blocklist List of
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Global whitelists Web filtering Glo
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Web filtering SSL scanning 6 Handle
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Block untrusted certificate authori
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Web filtering SSL scanning 6 Verify
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Modules for SSL scanning Web filter
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Web filtering SSL scanning 6 SSL Cl
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8 Click OK. The window closes and t
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The rule set contains the following
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Bandwidth throttling Web filtering
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Next-hop proxies Web filtering Supp
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Web filtering Supporting functions
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User messages Web filtering User me
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The following table describes the o
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Table 6-25 Template Editor (continu
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Web filtering User messages 6 Redir
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7 System configuration Contents Con
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System settings System configuratio
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Table 7-4 List of sections on syste
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License system settings System conf
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Network Protection system settings
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System configuration System setting
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Database updates Table 7-13 File Ed
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System configuration Database updat
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Configure central management settin
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System configuration Central manage
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Scheduled job settings This section
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System configuration Central manage
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8 Monitoring Contents Monitoring th
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Monitoring Dashboard 8 Overview of
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Charts and Tables tab Monitoring Da
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Table 8-4 Overview of charts and ta
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Logging Monitoring Logging 8 Applia
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Sample logging rule Monitoring Logg
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13 Configure the following for the
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Monitoring Logging 8 4 Go to Policy
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+ Number.ToString (Block.ID) + “
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Create a rule for setting text as t
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Monitoring Logging 8 • In the Con
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Configuring log file settings Monit
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Monitoring Logging 8 Auto Pushing S
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Log handler rule sets Monitoring Lo
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Performance measurement Monitoring
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Monitoring Performance measurement
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Transferring data to an ePO server
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Event monitoring with SNMP Monitori
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Error handling Table 8-7 Trap Sinks
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Rule sets for error handling Monito
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The rule set contains the following
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Monitoring Error handling 8 Handle
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Monitoring Error handling 8 Block o
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9 Troubleshooting Contents Troubles
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Enable the creation of connection t
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List of actions Appendix: Configura
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Table A-2 List of error IDs (contin
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Table A-3 List of events (continued
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Table A-3 List of events (continued
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List of incident IDs Appendix: Conf
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Table A-4 List of incident IDs (con
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Table A-5 List of properties (conti
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Wildcard expressions Appendix: Conf
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Table A-6 List of important special
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Table A-7 List of important special
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Index A access restrictions 117 act
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I ICAP server, see proxies ICQ, see
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SNMP monitoring 303 SSL scanning Ce
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Web Gateway 7.1.5 Product Guide - McAfee

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