PsRewired provides emulated infrastructure servers for selected PSP, PS2, and PS3 games. PPSSPP 1.19.3 and later autoconfigures infrastructure DNS per game, and the default built-in DNS is PsRewired's 67.222.156.250.
Supported PSP titles listed on psrewired.com include Field Commander, NBA '06, Ratchet & Clank: Size Matters, SOCOM: Fireteam Bravo, SOCOM: Fireteam Bravo 2, SOCOM: Tactical Strike, and Syphon Filter: Dark Mirror. Check their site for the current list.
Setup
- Use PPSSPP 1.19.3 or later.
- Open Settings > Networking and enable networking / WLAN.
- Under Infrastructure, set a unique Username. This is separate from the emulated PSP nickname used for ad-hoc play.
- Leave infrastructure DNS on autoconfigure unless a game fails to connect.
- Start the game and use its infrastructure / online multiplayer option.
If a game does not connect
Disable autoconfigure and set the DNS server to 67.222.156.250, as listed on PPSSPP's infrastructure servers page.
Sources: PPSSPP infrastructure servers, PPSSPP multiplayer quickstart, PsRewired.