Just a followup on this conversation. It appears the total control is able to auto-assign the compression regardless of the radius attribute being set or not. We're not setting it and we see what Lewis was seeing: jabba> sho session qei INFORMATION FOR SESSION qei Service Type: Framed Framed Protocol: PPP Session Timeout: 46800 Idle Timeout: 900 Speed of Connection: Auto NAS IP Address: x.x.x.x Class: IW.SUNSET#IW Login Service: Telnet Interface Name: slot:1/mod:19 Active Session ID: 1180561 Traffic Threshold: 0 Keep Alive Interval: 0 Framed IP Netmask: 0.0.0.0 MLPPP Fragmentation Threshold: 0 Framed Routing: None Framed Callback Identifier: 0 Compression Algorithm: None Compression Reset Mode: Auto Receive Acc Map: 0 Transmit Acc Map: 0 But looking at the client, we did show microsoft compression turned on in Windows XP. So we look at the global PPP settings on the box: jabba> sho ppp setTINGS PPP SETTINGS PPP AUTHENTICATION DIAL_IN Users Authenticate: PAP PPP Authentication Preference: PAP System Transmit Authentication Name: HiPer PPP offloading: ENABLED CCP will be attempted for call type(s): ALL System MTU : 1514 Primary NBNS Server address: 0.0.0.0 Secondary NBNS Server address: 0.0.0.0 DNS configuration Usage: SYSTEM Primary PPP DNS Server address: x.x.x.x Secondary PPP DNS Server address: x.x.x.x PPP session start message: PPP session from %server_ip to %client_ip beginning.... Send Accounting for PPP Abnormal Disc: ENABLED PPP Address Field Compression: ENABLED PPP Protocol Field Compression: ENABLED PPP Multilink PPP: ENABLED PPP BACP and BAP: DISABLED PPP Bap Hunt Group Phone Number: PPP Receive ACCM: DISABLED PPP Negotiated Callback: DISABLED PPP Process RADIUS Challenge during PAP: DISABLED PAP Authentication Retries: 3 PPP Send EDO status: ENABLED It appears to be turned on globally, and looking closer at the running PPP session confirms this: jabba> sho ppp on int slot:1/mod:19 SETTINGS for PPP on INTERFACE slot:1/mod:19 SETTINGS for PPP BUNDLE 27901 Operational Status: Opened Number Active Links: 1 User Profile: qei Local MMRU: 1514 Remote MMRU: 1614 Local Endpoint Class: IEEE MAC Address Local Endpoint Length: 6 Local Endpoint ID: 00:c0:49:0d:5d:42 Remote Endpoint Class: Locally Assigned Address Remote Endpoint Length: 20 Remote Endpoint ID: Class=0x2:Length=0x14:49dbf7df2f9d485d884f14cdec1039f4 0 0 0 0 SETTINGS for PPP BUNDLE 27901 COMPRESSION Operational Status: Opened Compression Protocol: MICROSOFT SETTINGS for PPP BUNDLE 27901 IP PROTOCOL Operational Status: Opened Local To Remote Compression Protocol: VJ_TCP Remote To Local Compression Protocol: VJ_TCP Local Max Slot ID: 15 Remote Max Slot ID: 15 Local IP Address: x.x.x.x Remote IP Address: x.x.x.x SETTINGS for PPP LINK 27901 - 44971632 Operational Status: Opened Interface Index: 1275 Local MRU: 1514 Remote MRU: 1614 Local to Peer ACC Map: 0 Peer to Local ACC Map: 0 Local To Remote Protocol Compression: ENABLED Remote To Local Protocol Compression: ENABLED Local To Remote AC Compression: ENABLED Remote To Local AC Compression: ENABLED SETTINGS for PPP LINK 27901 - 44971632 AUTHENTICATION Operational Status: Opened Local To Remote Authenticate Protocol: PAP Remote To Local Authenticate Protocol: NONE Does that look anything like yours? I guess the "show session" output doesn't really tell what's happening very well, only what Radius has requested for the session. I suppose we could override the default compression settings with Radius if we wanted to. Randy Cosby Vice President InfoWest, Inc P: 435-674-0165x1011 F: 435-674-9654